UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant To Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): ~~July~~September 2627, 2004 ~~INDYMAC~~(Date ~~MBS,~~of ~~INC.~~earliest asevent ~~Depositor,~~reported) ~~IndyMac~~Indymac ~~Bank,~~MBS ~~F.S.B.~~Inc (as ~~Seller~~Depositor ~~and as Master Servicer, and Deutsche Bank National Trust Company, as trustee~~ under the Pooling and Servicing Agreement, dated as of March 1, 2004, providing for the issuance of ~~IndyMac MBS, Inc.~~ Residential Asset- Securitization Trust Series 2004-A2 Mortgage Pass-Through Certificates, Series 2004-B.) ~~INDYMAC MBS INC RESIDENTIAL ASSET SEC TRUST 2004-A2~~ (Exact name of ~~Registrant~~registrant as specified in ~~its Charter~~charter) DELAWARE (State or Other Jurisdiction of Incorporation) 333-102888-19 95-4791925 (Commission File Number) (I.R.S. Employer Identification No.) 155 NORTH LAKE AVENUE PASADENA, CALIFORNIA 91101 (Address of principal executive offices) (Zip Code) Registrant's Telephone Number, Including Area Code: (800) 669-2300 (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12(b) under the Exchange Act (17 CFR 240.14a-12(b)) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Item 58.01 Other Events Attached hereto is a copy of the Monthly Remittance Statements to the Certificateholders which was derived from the monthly information submitted by the Master Servicer of the Trust to the Trustee. Item 79.01 Financial ~~Statement~~Statements and Exhibits (c) Exhibits: ~~(as~~Exhibit ~~noted~~No. inDescription ~~Item~~99.1 ~~5 above)~~ Monthly Remittance Statement to the Certificateholders dated as of ~~July~~September 2627, 2004. ~~SIGNATURE~~Signatures Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. Deutsche Bank National Trust Company, ~~not~~ in itits ~~individual~~ capacity, ~~but solely~~ as aTrustee ~~duly~~under ~~authorized agent of~~ the ~~Registrant pursuant to the~~ Pooling and Servicing Agreement, ~~dated~~on asbehalf of ~~March~~Indymac 1MBS Inc,~~2004.~~ Registrant Date: ~~Aug~~Sep 0527, 2004 By: /s/ Katherine M. Wannenmacher Katherine M. Wannenmacher Vice President EXHIBIT INDEX DOCUMENT 99.1 Monthly Remittance Statement to the Certificateholders dated as of ~~July~~September 2627, 2004.

	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	July 26, 2004 Distribution
	September 27, 2004 Distribution
	Contents
			TABLE OF CONTENTS
								Page
			1.	Contents				1
			2.	Certificate Payment Report				2
			3.	Collection Account Report				6
			4.	Credit Enhancement Report				9
			5.	Collateral Report				10
			6.	Delinquency Report				13
			7.	REO Report				16
			8.	Prepayment Report				17
			9.	Prepayment Detail Report				20
			10.	Realized Loss Report				2122
			11.	Realized Loss Detail Report				2425
			12.	Triggers, Adj. Rate Cert. and Miscellaneous Report				2526
			13.	Other Related Information				2627
			14.	Additional Certificate Report				2728
				Total Number of Pages				2728
			CONTACTS
				Administrator: Brent Hoyler
				Direct Phone Number: (714)247-6322
				Address: Deutsche Bank
				1761 E. St. Andrew Place, Santa Ana, CA 92705
				Web Site: https://www.corporatetrust.db.com/invr
				Factor Information: (800) 735-7777
				Main Phone Number: (714) 247-6000
ISSUANCE INFORMATION
	Seller:		IndyMac Bank					Cut-Off Date: March 1, 2004
	Certificate Insurer(s):		MBIA Insurance Corporation					Closing Date: December 29, 2003
								First Payment Date: April 26, 2004
	Servicer(s):		IndyMac Bank Master Servicer
								Distribution Date: July 26, 2004
								Distribution Date: September 27, 2004
	Underwriter(s):		Goldman, Sachs & Co. Underwriter					Record Date: ~~June~~August 3031, 2004
						Page 1 of 27					© COPYRIGHT 2004 Deutsche Bank
						Page 1 of 28					© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Certificate Payment Report for July 26, 2004 Distribution
	Certificate Payment Report for September 27, 2004 Distribution
	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
1-A-1		72,508,000.00			6967,~~260~~134,~~917~~966.9498	~~230~~223,~~869~~783.7322	1,~~066~~051,~~820~~492.8177	1,~~297~~275,~~690~~275.5499	-	-	6866,~~194~~083,~~097~~474.1421
1-A-2		500,000.00			500,000.00	2,291.67	-	2,291.67	-	-	500,000.00
1-A-3		44,800,875.00			4241,~~852~~577,~~625~~055.7719	6069,~~707~~814.8981	~~640~~630,~~092~~895.4866	700,~~800~~710.3747	-	-	4240,~~212~~946,~~533~~159.2853
1-A-4		-			-	~~224~~207,~~976~~365.2956	-	~~224~~207,~~976~~365.2956	-	-	-
1-A-5		51,000,000.00			4948,~~261~~103,~~710~~366.8430	~~225~~220,~~782~~473.8476	~~659~~9,~~925~~902,977.4731	~~885~~10,~~708~~123,451.3107	-	-	4838,~~601~~200,~~785~~388.3799
1-A-6		14,178,000.00			14,178,000.00	64,982.50	-	64,982.50	-	-	14,178,000.00
1-A-7		5,000,000.00			1,821,237.93	8,347.34	-1,821,237.93	81,~~347~~829,585.3427	-	-	~~1,821,237.93~~-
1-A-8		22,350,000.00			22,350,000.00	97,781.25	-	97,781.25	-	-	22,350,000.00
1-A-9		2,160,125.00			2,160,125.00	7,200.42	-	7,200.42	-	-	2,160,125.00
1-A-10		-			-	4,656.25	-	4,656.25	-	-	-
1-A-X		-			-	8278,~~239~~890.1839	-	8278,~~239~~890.1839	-	-	-
1-PO		952,462.50			~~948~~930,~~468~~703.2794	-	1677,~~362~~200.0928	1677,~~362~~200.0928	-	-	~~932~~853,~~106~~503.1866
1-B-1		5,252,000.00			5,~~228~~217,~~170~~827.3683	23,~~962~~915.4504	5242,~~151~~091.7729	29266,~~114~~006.2233	-	-	54,~~223~~975,~~018~~736.5954
1-B-2		1,788,000.00			1,~~779~~776,~~887~~366.4037	8,~~157~~141.8268	182,~~753~~417.8898	990,~~911~~559.7066	-	-	1,~~778~~693,~~133~~948.5239
1-B-3		1,006,000.00			1999,~~001,435~~454.5345	4,~~589~~580.9183	~~986~~46,371.8064	550,~~576~~952.7147	-	-	1953,~~000,448~~082.7282
1-B-4		671,000.00			~~667~~666,~~955~~634.5113	3,~~061~~055.4641	~~658~~30,929.2079	333,~~719~~985.6620	-	-	~~667~~635,~~297~~704.3134
1-B-5		335,000.00			~~333~~332,~~480~~820.0232	1,~~528~~525.4543	~~328~~15,441.6185	116,~~857~~967.0628	-	-	~~333~~317,~~151~~378.4147
1-B-6		1,006,493.00			1999,~~001,926~~944.2925	4,~~592~~583.1608	~~987~~46,394.2936	550,~~579~~977.4544	-	-	1953,~~000,939~~549.0088
Total		223,507,955.50			~~213~~208,~~345~~748,~~940~~502.8569	1,~~055~~031,~~727~~388.6164	213,~~393~~947,~~067~~450.3986	314,~~448~~978,~~795~~839.0050	-	-	~~210~~194,~~952~~801,~~873~~051.4683
	Interest Accrual Detail				Current Period Factor Information per $1,000 of Original Face
						Orig. Principal	Prior				Current
	Period	Period				(with Notional)	Principal			Total	Principal
Class	Starting	Ending		Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
							(1)	(2)	(3)	(4)=(2)+(3)	(5)
1-A-1				F-30/360	45660NB20	72,508,000.00	~~955~~925.~~217603~~897377	3.~~184059~~086325	14.~~713146~~501748	17.~~897205~~588073	~~940~~911.~~504457~~395628
1-A-2				F-30/360	45660NB38	500,000.00	1,000.000000	4.583340	-	4.583340	1,000.000000
1-A-3				A-30/360	45660NB46	44,800,875.00	~~956~~928.~~513143~~041142	1.~~355060~~558336	14.~~287500~~082217	15.~~642560~~640553	~~942~~913.~~225644~~958924
1-A-4				A-30/360	45660NB53	44,800,875.00	~~956~~928.~~513143~~041142	54.~~021694~~628605	-	54.~~021694~~628605	~~942~~913.~~225644~~958924
1-A-5				F-30/360	45660NB61	51,000,000.00	~~965~~943.~~915899~~203261	4.~~427115~~323015	12194.~~939715~~176026	17198.~~366830~~499041	~~952~~749.~~976184~~027235
1-A-6				F-30/360	45660NB79	14,178,000.00	1,000.000000	4.583333	-	4.583333	1,000.000000
1-A-7				F-30/360	45660NB87	5,000,000.00	364.247586	1.669468	-364.247586	1365.~~669468~~917054	~~364.247586~~-
1-A-8				F-30/360	45660NB95	22,350,000.00	1,000.000000	4.375000	-	4.375000	1,000.000000
1-A-9				F-30/360	45660NC29	2,160,125.00	1,000.000000	3.333335	-	3.333335	1,000.000000
1-A-10				F-30/360	45660NC94	22,350,000.00	1,000.000000	0.208333	-	0.208333	1,000.000000
1-A-X				A-30/360	45660NC45	184,665,882.00	~~945~~922.~~729036~~040088	0.~~445340~~427206	-	0.~~445340~~427206	~~933~~850.~~702448~~672152
1-PO				-	45660NC37	952,462.50	~~995~~977.~~806418~~155468	-	1781.~~178724~~053354	1781.~~178724~~053354	~~978~~896.~~627694~~102114
1-B-1				F-30/360	45660NC60	5,252,000.00	~~995~~993.~~462750~~493493	4.~~562538~~553511	046.~~980917~~095067	550.~~543455~~648578	~~994~~947.~~481833~~398427
1-B-2				F-30/360	45660NC78	1,788,000.00	~~995~~993.~~462750~~493493	4.~~562539~~553512	046.~~980917~~095067	550.~~543456~~648579	~~994~~947.~~481833~~398427
1-B-3				F-30/360	45660NC86	1,006,000.00	~~995~~993.~~462750~~493493	4.~~562535~~553509	046.~~980917~~095067	550.~~543451~~648576	~~994~~947.~~481833~~398427
1-B-4				F-30/360	45660ND85	671,000.00	~~995~~993.~~462750~~493493	4.~~562534~~553517	046.~~980917~~095067	550.~~543450~~648584	~~994~~947.~~481833~~398427
1-B-5				F-30/360	45660ND93	335,000.00	~~995~~993.~~462750~~493493	4.~~562537~~553522	046.~~980917~~095067	550.~~543454~~648589	~~994~~947.~~481833~~398427
1-B-6				F-30/360	45660NE27	1,006,493.00	~~995~~993.~~462750~~493493	4.~~562535~~553514	046.~~980917~~095067	550.~~543452~~648581	~~994~~947.~~481833~~398427
							Page 2 of 27				© COPYRIGHT 2004 Deutsche Bank
							Page 2 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Certificate Payment Report for July 26, 2004 Distribution
	Certificate Payment Report for September 27, 2004 Distribution
	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)
1-A-1	72,508,000.00		~~945~~1,~~074~~396,171.1604		35,~~889~~168,~~285~~598.5364	~~424~~1,~~617~~255,927.3315	46,~~313~~424,~~902~~525.8679	57,~~258~~820,~~977~~696.0283	-	-	6866,~~194~~083,~~097~~474.1421
1-A-2	500,000.00		913,~~166~~750.6802		-	-	-	913,~~166~~750.6802	-	-	500,000.00
1-A-3	44,800,875.00		~~225~~360,~~890~~783.8330		23,~~333~~101,~~571~~159.3218	~~254~~753,~~770~~556.4029	23,~~588~~854,~~341~~715.7247	24,~~814~~215,~~232~~498.5577	-	-	4240,~~212~~946,~~533~~159.2853
1-A-4	-		~~942~~1,~~760~~366,464.1897		-	-	-	~~942~~1,~~760~~366,464.1897	-	-	-
1-A-5	51,000,000.00		~~921~~1,~~014~~364,246.3630		25,~~190~~660,~~682~~653.7313	~~207~~7,~~531~~138,957.8988	212,~~398~~799,~~214~~611.6301	314,~~319~~163,~~228~~857.9931	-	-	4838,~~601~~200,~~785~~388.3799
1-A-6	14,178,000.00		~~259~~389,~~930~~895.00		-	-	-	~~259~~389,~~930~~895.00	-	-	14,178,000.00
1-A-7	5,000,000.00		6379,~~291~~986.5826		23,~~861~~416,~~455~~632.3555	~~317~~1,~~306~~583,367.7245	35,~~178~~000,~~762~~000.0700	35,~~242~~079,~~053~~986.6526	-	-	~~1,821,237.93~~-
1-A-8	22,350,000.00		~~391~~586,~~125~~687.0050		-	-	-	~~391~~586,~~125~~687.0050	-	-	22,350,000.00
1-A-9	2,160,125.00		2843,~~801~~202.6852		-	-	-	2843,~~801~~202.6852	-	-	2,160,125.00
1-A-10	-		1827,~~625~~937.0050		-	-	-	1827,~~625~~937.0050	-	-	-
1-A-X	-		~~338~~498,~~999~~403.6270		-	-	-	~~338~~498,~~999~~403.6270	-	-	-
1-PO	952,462.50		-		-	2098,~~356~~958.3284	2098,~~356~~958.3284	2098,~~356~~958.3284	-	-	~~932~~853,~~106~~503.1866
1-B-1	5,252,000.00		96143,~~028~~882.8068		25103,~~401~~898.8168	3172,~~579~~364.6078	28276,~~981~~263.4146	~~125~~420,~~010~~146.2114	-	-	54,~~223~~975,~~018~~736.5954
1-B-2	1,788,000.00		3248,~~692~~983.2268		835,~~647~~371.8445	158,~~218~~680.6517	994,~~866~~051.4861	42143,~~558~~035.7029	-	-	1,~~778~~693,~~133~~948.5239
1-B-3	1,006,000.00		1827,~~393~~560.9315		419,~~865~~901.6238	~~685~~33,015.6680	552,~~551~~917.2818	2380,~~945~~477.2133	-	-	1953,~~000,448~~082.7282
1-B-4	671,000.00		1218,~~268~~382.7258		313,~~245~~274.3618	~~457~~22,021.3347	335,~~702~~295.6966	1553,~~971~~678.4124	-	-	~~667~~635,~~297~~704.3134
1-B-5	335,000.00		69,~~125~~177.2360		16,~~620~~627.2620	~~228~~10,994.33	117,~~848~~621.5953	726,~~973~~799.8213	-	-	~~333~~317,~~151~~378.4147
1-B-6	1,006,493.00		1827,~~402~~573.9567		419,~~868~~911.0014	~~685~~33,031.9998	552,~~554~~943.0012	2380,~~956~~516.9579	-	-	1953,~~000,939~~549.0088
Total	223,507,955.50		46,~~328~~403,~~590~~088.9447		1117,~~323~~546,~~643~~027.8254	111,~~231~~160,~~438~~876.2213	1228,~~555~~706,~~082~~903.0467	1635,~~883~~109,~~672~~992.9814	-	-	~~210~~194,~~952~~801,~~873~~051.4683
	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)
1-A-1	4.00000%	6967,~~260~~134,~~917~~966.9498			~~230~~223,~~869~~783.7322	-	-	-	~~230~~223,~~869~~783.7322	~~230~~223,~~869~~783.7322	-
1-A-2	5.50000%	500,000.00			2,291.67	-	-	-	2,291.67	2,291.67	-
1-A-3	12.~~70000~~01500%	4241,~~852~~577,~~625~~055.7719			6069,~~707~~814.8981	-	-	-	6069,~~707~~814.8981	6069,~~707~~814.8981	-
1-A-4	65.~~30000~~98500%	4241,~~852~~577,~~625~~055.7719			~~224~~207,~~976~~365.2956	-	-	-	~~224~~207,~~976~~365.2956	~~224~~207,~~976~~365.2956	-
1-A-5	5.50000%	4948,~~261~~103,~~710~~366.8430			~~225~~220,~~782~~473.8476	-	-	-	~~225~~220,~~782~~473.8476	~~225~~220,~~782~~473.8476	-
1-A-6	5.50000%	14,178,000.00			64,982.50	-	-	-	64,982.50	64,982.50	-
1-A-7	5.50000%	1,821,237.93			8,347.34	-	-	-	8,347.34	8,347.34	-
1-A-8	5.25000%	22,350,000.00			97,781.25	-	-	-	97,781.25	97,781.25	-
1-A-9	4.00000%	2,160,125.00			7,200.42	-	-	-	7,200.42	7,200.42	-
1-A-10	0.25000%	22,350,000.00			4,656.25	-	-	-	4,656.25	4,656.25	-
1-A-X	0.~~56508~~55599%	~~174~~170,~~643~~269,~~886~~346.5210			8278,~~239~~890.1839	-	-	-	8278,~~239~~890.1839	8278,~~239~~890.1839	-
1-PO		~~948~~930,~~468~~703.2794			-	-	-	-	-	-	-
1-B-1	5.50000%	5,~~228~~217,~~170~~827.3683			23,~~962~~915.4504	-	-	-	23,~~962~~915.4504	23,~~962~~915.4504	-
1-B-2	5.50000%	1,~~779~~776,~~887~~366.4037			8,~~157~~141.8268	-	-	-	8,~~157~~141.8268	8,~~157~~141.8268	-
1-B-3	5.50000%	1999,~~001,435~~454.5345			4,~~589~~580.9183	-	-	-	4,~~589~~580.9183	4,~~589~~580.9183	-
1-B-4	5.50000%	~~667~~666,~~955~~634.5113			3,~~061~~055.4641	-	-	-	3,~~061~~055.4641	3,~~061~~055.4641	-
1-B-5	5.50000%	~~333~~332,~~480~~820.0232			1,~~528~~525.4543	-	-	-	1,~~528~~525.4543	1,~~528~~525.4543	-
1-B-6	5.50000%	1999,~~001,926~~944.2925			4,~~592~~583.1608	-	-	-	4,~~592~~583.1608	4,~~592~~583.1608	-
Total		~~453~~442,~~192~~944,~~453~~903.1498			1,~~055~~031,~~727~~388.6164	-	-	-	1,~~055~~031,~~727~~388.6164	1,~~055~~031,~~727~~388.6164	-
							Page 3 of 27				© COPYRIGHT 2004 Deutsche Bank
							Page 3 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Certificate Payment Report for July 26, 2004 Distribution
	Certificate Payment Report for September 27, 2004 Distribution
	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
2-A-1		59,730,000.00			5145,~~678~~766,~~914~~801.0239	7982,~~671~~570.6694	23,~~658~~278,~~690~~212.5566	23,~~738~~360,~~362~~783.2160	-	-	4942,~~020~~488,~~223~~588.4673
2-A-2		-			-	~~253~~212,~~928~~110.6864	-	~~253~~212,~~928~~110.6864	-	-	-
2-B-1		674,000.00			~~663~~656,~~662~~794.8826	3,~~041~~010.7931	339,~~437~~913.0760	642,~~478~~923.8691	-	-	~~660~~616,~~225~~880.8166
2-B-2		306,000.00			~~301~~298,~~306~~188.8949	1,~~380~~366.9970	118,~~560~~121.4501	219,~~941~~487.4471	-	-	~~299~~280,~~746~~067.4448
2-B-3		214,000.00			~~210~~208,~~717~~537.8905	~~965~~955.79	112,~~091~~672.3086	213,~~057~~628.0965	-	-	~~209~~195,~~626~~864.5919
2-B-4		123,000.00			~~121~~119,~~113~~860.5508	~~555~~549.1036	~~627~~7,283.2494	17,~~182~~833.3430	-	-	~~120~~112,~~486~~576.3114
2-B-5		92,000.00			9089,~~589~~651.0044	~~415~~410.2090	~~469~~5,448.1615	~~884~~5,859.3605	-	-	9084,~~119~~203.8429
2-B-6		122,881.00			~~120~~119,~~996~~744.3812	~~554~~548.5783	~~626~~7,276.6389	17,~~181~~825.2072	-	-	~~120~~112,~~369~~467.7423
2-B-X		-			-	2,~~823~~769.5774	-	2,~~823~~769.5774	-	-	-
P		100.00			100.00	~~3,616.63~~-	-	~~3,616.63~~-	-	-	100.00
A-R		100.00			-	-	-	-	-	-	-
Total		61,262,081.00			5347,~~187~~259,~~400~~676.6083	~~346~~304,~~953~~293.9821	23,~~666~~368,~~502~~929.4011	3,~~013~~673,~~456~~222.3832	-	-	5043,~~520~~890,~~898~~747.2072
	Interest Accrual Detail				Current Period Factor Information per $1,000 of Original Face
						Orig. Principal	Prior				Current
	Period	Period				(with Notional)	Principal			Total	Principal
Class	Starting	Ending		Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
							(1)	(2)	(3)	(4)=(2)+(3)	(5)
2-A-1				A-30/360	45660ND28	59,730,000.00	~~865~~766.~~208673~~228049	1.~~333863~~382403	4454.~~511812~~883855	4556.~~845676~~266258	~~820~~711.~~696860~~344194
2-A-2				A-30/360	45660ND36	59,730,000.00	~~865~~766.~~208673~~228049	43.~~251275~~551158	-	43.~~251275~~551158	~~820~~711.~~696860~~344194
2-B-1				F-30/360	45660ND44	674,000.00	~~984~~974.~~663027~~472196	4.~~513042~~466335	559.~~099513~~218994	963.~~612555~~685330	~~979~~915.~~563514~~253202
2-B-2				F-30/360	45660ND51	306,000.00	~~984~~974.~~663027~~472196	4.~~513039~~466340	559.~~099513~~218994	963.~~612552~~685334	~~979~~915.~~563514~~253202
2-B-3				F-30/360	45660ND69	214,000.00	~~984~~974.~~663027~~472196	4.~~513037~~466308	559.~~099513~~218994	963.~~612550~~685303	~~979~~915.~~563514~~253202
2-B-4				F-30/360	45660NE35	123,000.00	~~984~~974.~~663027~~472196	4.~~513008~~466341	559.~~099513~~218994	963.~~612521~~685336	~~979~~915.~~563514~~253202
2-B-5				F-30/360	45660NE43	92,000.00	~~984~~974.~~663027~~472197	4.~~513043~~466304	559.~~099513~~218995	963.~~612557~~685299	~~979~~915.~~563514~~253202
2-B-6				F-30/360	45660NE50	122,881.00	~~984~~974.~~663027~~472197	4.~~513065~~466354	559.~~099513~~218994	963.~~612579~~685348	~~979~~915.~~563514~~253202
2-B-X				F-30/360	45660ND77	1,531,881.00	~~984~~974.~~663027~~472196	1.~~843205~~808065	-	1.~~843205~~808065	~~979~~915.~~563514~~253202
P				-	IN04021P1	100.00	1,000.000000	~~36,166.300000~~-	-	~~36,166.300000~~-	1,000.000000
A-R				F-30/360	45660NC52	100.00	-	-	-	-	-
							Page 4 of 27				© COPYRIGHT 2004 Deutsche Bank
							Page 4 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Certificate Payment Report for July 26, 2004 Distribution
	Certificate Payment Report for September 27, 2004 Distribution
	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)
2-A-1	59,730,000.00		~~314~~478,~~295~~566.2960		913,~~535~~010,~~361~~395.3631	14,~~174~~231,~~415~~015.1896	1017,~~709~~241,~~776~~411.5427	1117,~~024~~719,~~071~~977.8387	-	-	4942,~~020~~488,~~223~~588.4673
2-A-2	-		1,~~115~~562,~~000~~085.2296		-	-	-	1,~~115~~562,~~000~~085.2296	-	-	-
2-B-1	674,000.00		1218,~~261~~297.4680		1221,~~245~~288.4534	135,~~528~~831.7400	1357,~~774~~119.1934	2675,~~035~~417.6514	-	-	~~660~~616,~~225~~880.8166
2-B-2	306,000.00		58,~~566~~307.7832		59,~~559~~665.5103	~~694~~16,267.0649	625,~~253~~932.5652	1134,~~820~~239.3484	-	-	~~299~~280,~~746~~067.4448
2-B-3	214,000.00		35,~~893~~809.1068		36,~~888~~759.0221	~~485~~11,376.3961	418,~~373~~135.4181	823,~~266~~945.5149	-	-	~~209~~195,~~626~~864.5919
2-B-4	123,000.00		23,~~237~~339.6221		23,~~234~~884.7096	~~278~~6,538.9889	210,~~513~~423.6986	413,~~751~~763.3107	-	-	~~120~~112,~~486~~576.3114
2-B-5	92,000.00		12,~~673~~497.6762		12,~~671~~905.4983	~~208~~4,890.6788	17,~~880~~796.1671	310,~~553~~294.8333	-	-	9084,~~119~~203.8429
2-B-6	122,881.00		23,~~235~~335.4698		23,~~232~~881.5421	~~278~~6,532.7157	210,~~511~~413.2677	413,~~746~~749.7275	-	-	~~120~~112,~~369~~467.7423
2-B-X	-		1116,~~306~~892.1816		-	-	-	1116,~~306~~892.1816	-	-	-
P	100.00		3,616.63		-	-	-	3,616.63	-	-	100.00
A-R	100.00		0.46		81.64	18.36	100.00	100.46	-	-	-
Total	61,262,081.00		12,~~472~~102,~~086~~749.8742		913,~~563~~058,~~274~~861.7152	14,~~177~~312,~~908~~471.0976	1017,~~741~~371,~~182~~333.8028	1219,~~213~~474,~~269~~082.6770	-	-	5043,~~520~~890,~~898~~747.2072
	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)
2-A-1	12.~~85000~~16500%	5145,~~678~~766,~~914~~801.0239			7982,~~671~~570.6694	-	-	-	7982,~~671~~570.6694	7982,~~671~~570.6694	-
2-A-2	5.~~89630~~56152%	5145,~~678~~766,~~914~~801.0239			~~253~~212,~~928~~110.6864	-	-	-	~~253~~212,~~928~~110.6864	~~253~~212,~~928~~110.6864	-
2-B-1	5.50000%	~~663~~656,~~662~~794.8826			3,~~041~~010.7931	-	-	-	3,~~041~~010.7931	3,~~041~~010.7931	-
2-B-2	5.50000%	~~301~~298,~~306~~188.8949			1,~~380~~366.9970	-	-	-	1,~~380~~366.9970	1,~~380~~366.9970	-
2-B-3	5.50000%	~~210~~208,~~717~~537.8905			~~965~~955.79	-	-	-	~~965~~955.79	~~965~~955.79	-
2-B-4	5.50000%	~~121~~119,~~113~~860.5508			~~555~~549.1036	-	-	-	~~555~~549.1036	~~555~~549.1036	-
2-B-5	5.50000%	9089,~~589~~651.0044			~~415~~410.2090	-	-	-	~~415~~410.2090	~~415~~410.2090	-
2-B-6	5.50000%	~~120~~119,~~996~~744.3812			~~554~~548.5783	-	-	-	~~554~~548.5783	~~554~~548.5783	-
2-B-X	2.~~24630~~22652%	1,~~508~~492,~~386~~775.5844			2,~~823~~769.5774	-	-	-	2,~~823~~769.5774	2,~~823~~769.5774	-
P		100.00			-	-	-	-	-	~~3,616.63~~-	-
A-R	5.50000%	-			-	-	-	-	-	-	-
Total		~~106~~94,~~374~~519,~~701~~253.2066			~~343~~304,~~337~~293.3521	-	-	-	~~343~~304,~~337~~293.3521	~~346~~304,~~953~~293.9821	-
							Page 5 of 27				© COPYRIGHT 2004 Deutsche Bank
							Page 5 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Collection Account Report for July 26, 2004 Distribution
	Collection Account Report for September 27, 2004 Distribution
	Collection Account Report
SUMMARY						GROUP 2	GROUP 1	TOTAL
	Principal Collections					23,~~666~~368,~~502~~929.4011	213,~~393~~947,~~067~~450.3986	517,~~059~~316,~~569~~379.7997
	Principal Withdrawals					0.00	0.00	0.00
	Principal Other Accounts					0.00	0.00	0.00
	TOTAL PRINCIPAL					23,~~666~~368,~~502~~929.4011	213,~~393~~947,~~067~~450.3986	517,~~059~~316,~~569~~379.7997
	Interest Collections					~~354~~306,~~724~~801.2178	1,~~115~~050,~~518~~086.4281	1,~~470~~356,~~242~~888.6359
	Interest Withdrawals					0.00	0.00	0.00
	Interest Other Accounts					0.00	0.00	~~3,616~~0.6300
	Interest Fees					(112,~~386~~508.8657)	(5918,~~790~~698.8117)	(7521,~~177~~206.6774)
	TOTAL INTEREST					~~343~~304,~~337~~293.3521	1,~~055~~031,~~727~~388.6164	1,~~399~~335,~~064~~681.9685
	TOTAL AVAILABLE FUNDS TO BONDHOLDERS					3,~~009~~673,~~839~~222.7532	314,~~448~~978,~~795~~839.0050	618,~~462~~652,~~251~~061.3882
	Interest Payable to Bondholders					~~343~~304,~~337~~293.3521	1,~~055~~031,~~727~~388.6164	1,~~399~~335,~~064~~681.9685
	Principal Payment Amount Payable to Bondholders					23,~~666~~368,~~502~~929.4011	213,~~393~~947,~~067~~450.3986	517,~~059~~316,~~569~~379.7997
PRINCIPAL - COLLECTIONS						GROUP 2	GROUP 1	TOTAL
	Scheduled Principal					~~275~~259,~~453~~947.9774	~~210~~197,~~582~~152.0352	~~486~~457,~~036~~100.0026
	Curtailments					2924,~~091~~376.6152	2830,~~842~~298.6186	5754,~~934~~675.2238
	Prepayments in Full					2472,~~361,956~~572.8264	24,~~153~~269,~~642~~158.7536	4,~~515~~741,~~599~~731.5700
	Repurchases/Substitutions					02,612,032.0021	09,450,841.0012	012,062,873.0033
	Liquidations					0.00	0.00	0.00
	Insurance Principal					0.00	0.00	0.00
	Other Additional Principal					0.00	0.00	0.00
	LESS: Delinquent Principal					(6222,~~521~~306.0552)	(5163,~~759~~590.7061)	(12385,~~280~~897.7513)
	LESS: Realized Losses					0.00	0.00	0.00
	PLUS: Recoveries					0.00	0.00	0.00
	PLUS: Substitution Shortfall Principal					0.00	0.00	0.00
	PLUS: Principal Loan Adjustments					0.00	0.00	0.00
	PLUS: Principal Advanced					6222,~~521~~306.0552	5163,~~759~~590.7061	12385,~~280~~897.7513
	TOTAL PRINCIPAL					23,~~666~~368,~~502~~929.4011	213,~~393~~947,~~067~~450.3986	517,~~059~~316,~~569~~379.7997
				Page 6 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 6 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Collection Account Report for July 26, 2004 Distribution
	Collection Account Report for September 27, 2004 Distribution
	Collection Account Report
PRINCIPAL - WITHDRAWALS						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
PRINCIPAL - OTHER ACCOUNTS						GROUP 2	GROUP 1	TOTAL
	Cash Release					0.00	0.00	0.00
	TOTAL PRINCIPAL OTHER ACCOUNTS					0.00	0.00	0.00
INTEREST - COLLECTIONS						GROUP 2	GROUP 1	TOTAL
	Scheduled Interest					~~355~~297,~~454~~716.6627	1,~~117~~036,~~242~~497.2141	1,~~472~~334,~~696~~213.8768
	Repurchases/Substitutions					017,335.0080	054,867.0085	072,203.0065
	Liquidations					0.00	0.00	0.00
	Insurance Interest					0.00	0.00	0.00
	Other Additional Interest					0.00	0.00	0.00
	LESS: Prepayment Interest Shortfalls					(~~3,484~~799.6874)	(12,~~432~~658.7247)	(43,~~917~~458.4021)
	LESS: Delinquent Interest					(24261,~~387~~092.9177)	(37846,~~716~~229.9968)	(621,~~104~~107,322.9045)
	LESS: Interest Realized Losses					0.00	0.00	0.00
	PLUS: Compensating Interest					0.00	12,~~432~~658.7247	12,~~432~~658.7247
	LESS: Civil Relief Act Shorfalls					~~3,484~~799.6874	0.00	~~3,484~~799.6874
	PLUS: Substiution Shortfall Interest					0.00	0.00	0.00
	PLUS: Interest Loan Adjustments					0.00	0.00	0.00
	LESS: Excess, Special Hazard, Fraud, & Bankruptcy Interest Losses					0.00	0.00	0.00
	Interest Advanced					23252,~~657~~842.4648	35804,~~993~~951.2023	591,~~650~~057,793.6671
	TOTAL INTEREST					~~354~~306,~~724~~801.2178	1,~~115~~050,~~518~~086.4281	1,~~470~~356,~~242~~888.6359
				Page 7 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 7 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Collection Account Report for July 26, 2004 Distribution
	Collection Account Report for September 27, 2004 Distribution
	Collection Account Report
INTEREST - WITHDRAWALS						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
INTEREST - OTHER ACCOUNTS						GROUP 2	GROUP 1	TOTAL
	Prepayment Penalties					0.00	0.00	~~3,616~~0.6300
	TOTAL INTEREST OTHER ACCOUNTS					0.00	0.00	~~3,616~~0.6300
INTEREST - FEES						GROUP 2	GROUP 1	TOTAL
	Current Servicing Fees					101,~~500~~720.4091	5211,~~606~~839.1678	6313,~~106~~560.5669
	Trustee Fees					~~886~~787.4666	3,~~555~~479.7714	4,~~442~~266.2380
	PMI Fees					(0.00)	3,~~628~~379.8825	3,~~628~~379.8825
	Required Reserve Account Deposit Amount							~~4,000~~0.00
	TOTAL INTEREST FEES					112,~~386~~508.8657	5918,~~790~~698.8117	7521,~~177~~206.6774
				Page 8 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 8 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Credit Enhancement Report for July 26, 2004 Distribution
	Credit Enhancement Report for September 27, 2004 Distribution
	Credit Enhancement Report
ACCOUNTS						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
INSURANCE						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
STRUCTURAL FEATURES						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
				Page 9 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 9 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Collateral Report for July 26, 2004 Distribution
	Collateral Report for September 27, 2004 Distribution
	Collateral Report
COLLATERAL						GROUP 2	GROUP 1	TOTAL
	Loan Count:
	Original					404	608	1012
	Prior					~~357~~329	~~588~~578	~~945~~907
	Prefunding					-	8-	-
	Scheduled Paid Offs					~~(8)~~-	-(23)	-
	Full Voluntary Prepayments					(511)	(135)	(1816)
	Repurchases					-(28)	-(11)	-(39)
	Liquidations					-	-	-
	Current					~~344~~313	~~583~~539	~~927~~852
	Principal Balance:
	Original					61,261,881.66	223,508,055.49	284,769,937.15
	Prior					5347,~~187~~259,~~301~~577.2649	~~213~~208,~~345~~748,~~940~~502.8468	~~266~~256,~~533~~008,~~242~~080.1017
	Prefunding					-	-	-
	Scheduled Principal					(~~275~~259,~~453~~947.9774)	(~~210~~197,~~582~~152.0352)	(~~486~~457,~~036~~100.0026)
	Partial and Full Voluntary Prepayments					(2496,~~391,048~~949.4316)	(24,~~182~~299,~~485~~457.3622)	(4,~~573~~796,~~533~~406.7938)
	Repurchases					-(2,612,032.21)	-(9,450,841.12)	-(12,062,873.33)
	Liquidations					-	-	-
	Current					5043,~~520~~890,~~798~~648.8638	~~210~~194,~~952~~801,~~873~~051.4582	~~261~~238,~~473~~691,~~672~~700.3120
PREFUNDING						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
	Group 1
	Group 2
Current Prin Balance by Groups (in millions of dollars)					Total Current Principal Balance (in millions of dollars)
				Page 10 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 10 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Collateral Report for July 26, 2004 Distribution
	Collateral Report for September 27, 2004 Distribution
	Collateral Report
CHARACTERISTICS						GROUP 2	GROUP 1	TOTAL
	Weighted Average Coupon Original					7.983576%	6.290179%	6.654475%
	Weighted Average Coupon Prior					8.~~016977~~025665%	6.~~286030~~278426%	6.~~638887~~616020%
	Weighted Average Coupon Current					87.~~019689~~999701%	6.~~284116~~273761%	6.~~630453~~592373%
	Weighted Average Months to Maturity Original					204	355	323
	Weighted Average Months to Maturity Prior					~~205~~202	~~353~~351	323
	Weighted Average Months to Maturity Current					~~204~~196	~~352~~351	~~323~~322
	Weighted Avg Remaining Amortization Term Original					204	355	323
	Weighted Avg Remaining Amortization Term Prior					~~205~~201	~~353~~351	323
	Weighted Avg Remaining Amortization Term Current					~~352~~-	~~204~~-	~~233~~-
	Weighted Average Seasoning Original					93.22	4.24	22.96
	Weighted Average Seasoning Prior					9496.0633	68.1007	2324.6636
	Weighted Average Seasoning Current					~~7.08~~-	~~94.70~~-	~~77.77~~-
Note: Original information refers to deal issue.
	Group 1
	Group 2
WAC by Groups					Total WAC
WARAT by Groups					Total WARAT
Note: Dates correspond to distribution dates.
				Page 11 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 11 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Collateral Report for July 26, 2004 Distribution
	Collateral Report for September 27, 2004 Distribution
	Collateral Report
ARM CHARACTERISTICS						GROUP 2	GROUP 1	TOTAL
	Weighted Average Margin Original
	Weighted Average Margin Prior
	Weighted Average Margin Current
	Weighted Average Max Rate Original
	Weighted Average Max Rate Prior
	Weighted Average Max Rate Current
	Weighted Average Min Rate Original
	Weighted Average Min Rate Prior
	Weighted Average Min Rate Current
	Weighted Average Cap Up Original
	Weighted Average Cap Up Prior
	Weighted Average Cap Up Current
	Weighted Average Cap Down Original
	Weighted Average Cap Down Prior
	Weighted Average Cap Down Current
Note: Original information refers to deal issue.
SERVICING FEES / ADVANCES						GROUP 2	GROUP 1	TOTAL
	Current Servicing Fees					101,~~500~~720.4091	5211,~~606~~839.1678	6313,~~106~~560.5669
	Delinquent Servicing Fees					~~730~~8,250.4530	141,~~723~~278.7945	249,~~454~~528.2475
	TOTAL SERVICING FEES					119,~~230~~971.8521	5453,~~329~~118.9523	6563,~~560~~089.8044
	Total Servicing Fees					119,~~230~~971.8521	5453,~~329~~118.9523	6563,~~560~~089.8044
	Compensating Interest					(~~3,484~~799.6874)	(12,~~432~~658.7247)	(43,~~917~~458.4021)
	Delinquent Servicing Fees					(~~730~~8,250.4530)	(141,~~723~~278.7945)	(249,~~454~~528.2475)
	COLLECTED SERVICING FEES					~~7,015~~921.7217	519,~~173~~181.4431	5810,~~189~~102.1648
	Total Advanced Principal For Current Payment Date					6222,~~521~~306.0552	5163,~~759~~590.7061	12385,~~280~~897.7513
	Total Advanced Interest For Current Payment Date					23252,~~657~~842.4648	35804,~~993~~951.2023	591,~~650~~057,793.6671
	TOTAL ADVANCES FOR CURRENT PERIOD					30475,~~178~~149.5100	41968,~~752~~541.9084	711,~~931~~443,690.4184
ADDITIONAL COLLATERAL INFORMATION						GROUP 2	GROUP 1	TOTAL
	Prepayment Interest Shortfall (PPIS)					~~3,484~~799.6874	12,~~432~~658.7247	43,~~917~~458.4021
	Compensating Interest					(~~3,484~~799.6874)	(12,~~432~~658.7247)	(43,~~917~~458.4021)
	Net Prepayment Interest Shortfall (Net PPIS)					0.00	0.00	0.00
	Weighted Average Net Mortgage Rate							6.~~298944~~260811%
				Page 12 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 12 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Delinquency Report for July 26, 2004 Distribution
	Delinquency Report for September 27, 2004 Distribution
	Delinquency Report - Total
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance		-###########	64,~~157~~360,~~422~~634.2984	2,~~217~~049,~~250~~162.5297	1,~~316~~426,~~732~~101.6102	97,~~691~~835,~~405~~898.4283
		% Balance		080.0019%	21.3583%	0.8586%	0.5060%	3.7128%
		# Loans		-662	2623	910	45	3938
		% # Loans		077.0070%	2.8070%	01.9717%	0.4359%	4.2146%
FORECLOSURE		Balance		-	-1,129,749.28	-	~~268,683.54~~-	~~268~~1,~~683~~129,749.5428
		% Balance		0.00%	0.0047%	0.00%	0.1000%	0.1047%
		# Loans		-	-3	-	1-	13
		% # Loans		0.00%	0.0035%	0.00%	0.1100%	0.1135%
BANKRUPTCY		Balance		-667,447.06	33,~~926~~309.3374	-	-	33700,~~926~~756.3380
		% Balance		0.0028%	0.01%	0.00%	0.00%	0.0129%
		# Loans		-3	1	-	-	14
		% # Loans		0.0035%	0.1112%	0.00%	0.00%	0.1147%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
TOTAL		Balance		-667,447.06	65,~~191~~523,~~348~~693.6286	2,~~217~~049,~~250~~162.5297	1,~~585~~426,~~416~~101.1502	9,~~994~~666,~~015~~404.2991
		% Balance		0.0028%	2.3731%	0.8586%	0.6160%	34.8205%
		# Loans		-3	27	910	5	4145
		% # Loans		0.0035%	23.9117%	01.9717%	0.5459%	45.4228%
Note: <1 Payment = 1-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent
Total Foreclosure					Total Bankruptcy and REO
Note: Dates correspond to distribution dates.
				Page 13 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 13 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Delinquency Report for July 26, 2004 Distribution
	Delinquency Report for September 27, 2004 Distribution
	Delinquency Report - Group 1 Group
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance		-###########	31,~~754~~914,~~547~~310.7760	1,~~861~~292,~~785~~624.2546	~~902~~823,~~164~~318.7577	64,~~518~~030,~~497~~253.7783
		% Balance		080.0072%	10.7898%	0.8866%	0.4342%	32.0907%
		# Loans		-424	128	43	2	1813
		% # Loans		078.0066%	21.0648%	0.6956%	0.3437%	32.0941%
FORECLOSURE		Balance		-	-660,412.96	-	-	-660,412.96
		% Balance		0.00%	0.0034%	0.00%	0.00%	0.0034%
		# Loans		-	-1	-	-	-1
		% # Loans		0.00%	0.0019%	0.00%	0.00%	0.0019%
BANKRUPTCY		Balance		-232,482.33	-	-	-	-232,482.33
		% Balance		0.0012%	0.00%	0.00%	0.00%	0.0012%
		# Loans		-1	-	-	-	-1
		% # Loans		0.0019%	0.00%	0.00%	0.00%	0.0019%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
TOTAL		Balance		-232,482.33	32,~~754~~574,~~547~~723.7756	1,~~861~~292,~~785~~624.2546	~~902~~823,~~164~~318.7577	64,~~518~~923,~~497~~149.7712
		% Balance		0.0012%	1.7832%	0.8866%	0.4342%	32.0953%
		# Loans		-1	129	43	2	1815
		% # Loans		0.0019%	21.0667%	0.6956%	0.3437%	32.0978%
Note: <1 Payment = 1-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent
Total Foreclosure					Total Bankruptcy and REO
Note: Dates correspond to distribution dates.
				Page 14 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 14 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Delinquency Report for July 26, 2004 Distribution
	Delinquency Report for September 27, 2004 Distribution
	Delinquency Report - Group 2 Group
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance		-34,157,023.71	2,~~402~~446,~~874~~324.5224	~~355~~756,~~465~~538.2751	~~414~~602,~~567~~782.8625	3,~~172~~805,~~907~~645.6500
		% Balance		077.0082%	45.7657%	01.7072%	01.8237%	68.2867%
		# Loans		-238	1415	57	23	2125
		% # Loans		076.0004%	4.0779%	12.4524%	0.5896%	67.1099%
FORECLOSURE		Balance		-	-469,336.32	-	~~268,683.54~~-	~~268~~469,~~683~~336.5432
		% Balance		0.00%	01.0007%	0.00%	0.5300%	01.5307%
		# Loans		-	-2	-	1-	12
		% # Loans		0.00%	0.0064%	0.00%	0.2900%	0.2964%
BANKRUPTCY		Balance		-434,964.73	33,~~926~~309.3374	-	-	33468,~~926~~274.3347
		% Balance		0.0099%	0.0708%	0.00%	0.00%	01.07%
		# Loans		-2	1	-	-	13
		% # Loans		0.0064%	0.2932%	0.00%	0.00%	0.2996%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
TOTAL		Balance		-434,964.73	2,~~436~~948,~~800~~970.8530	~~355~~756,~~465~~538.2751	~~683~~602,~~251~~782.4025	34,~~475~~743,~~517~~255.5279
		% Balance		0.0099%	46.8272%	01.7072%	1.3537%	610.8881%
		# Loans		-2	1518	57	3	2330
		% # Loans		0.0064%	45.3675%	12.4524%	0.8796%	69.6958%
Note: <1 Payment = 1-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent
Total Foreclosure					Total Bankruptcy and REO
Note: Dates correspond to distribution dates.
				Page 15 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 15 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	REO Report for July 26, 2004 Distribution
	REO Report for September 27, 2004 Distribution
	REO Report - Mortgage Loans that Become REO During Current Distribution
SUMMARY				LOAN GROUP
Total Loan Count = 0				Loan Group 1 = Group 1; REO Book Value = 000.00
Total Original Principal Balance = 000.00				Loan Group 2 = Group 2; REO Book Value = 000.00
Total Current Balance = 000.00
REO Book Value = 000.00
REO Book Value reported corresponds to total REO loans, including loans that become REO during current distribution.
Loan Number		Original	Stated		Current	State &
&		Principal	Principal	Paid to	Note	LTV at	Original	Origination
Loan Group		Balance	Balance	Date	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK
				Page 16 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 16 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Prepayment Report for July 26, 2004 Distribution
	Prepayment Report for September 27, 2004 Distribution
	Prepayment Report - Voluntary Prepayments
VOLUNTARY PREPAYMENTS						GROUP 2	GROUP 1	TOTAL
	Current
	Number of Paid in Full Loans					511	135	1816
	Number of Repurchased Loans					-28	-11	-39
	Total Number of Loans Prepaid in Full					539	1316	1855
	Paid in Full Balance					2472,~~361,956~~572.8264	24,~~153~~269,~~642~~158.7536	4,~~515~~741,~~599~~731.5700
	Repurchased Loans Balance					-2,612,032.21	-9,450,841.12	-12,062,873.33
	Curtailments Amount					2924,~~091~~376.6152	2830,~~842~~298.6186	5754,~~934~~675.2238
	Total Prepayment Amount					23,~~391~~108,~~048~~981.4337	213,~~182~~750,~~485~~298.3634	416,~~573~~859,~~533~~279.7971
	Cumulative
	Number of Paid in Full Loans					5286	3234	84120
	Number of Repurchased Loans					-28	112	140
	Total Number of Loans Prepaid in Full					52114	3346	85160
	Paid in Full Balance					912,~~455~~902,~~123~~324.8531	1117,~~259~~497,~~766~~123.8822	2030,~~714~~399,~~890~~447.7353
	Repurchased Loans Balance					-2,612,032.21	~~365~~9,~~000~~815,841.0012	~~365~~12,~~000~~427,873.0033
	Curtailments Amount					~~108~~156,~~069~~455.2257	79135,~~163~~617.7433	~~187~~292,~~232~~072.9690
	Total Prepayment Amount					915,~~563~~670,~~193~~812.0709	1127,~~703~~448,~~930~~581.6267	2143,~~267~~119,~~123~~393.6976
SPACE INTENTIONALLY LEFT BLANK
Total Prepayments by Groups (in thousands of dollars)					Total Prepayments (in thousands of dollars)
				Page 17 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 17 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Prepayment Report for July 26, 2004 Distribution
	Prepayment Report for September 27, 2004 Distribution
	Prepayment Report - Voluntary Prepayments
VOLUNTARY PREPAYMENT RATES						GROUP 2	GROUP 1	TOTAL
	SMM					46.5261%	16.0259%	16.7260%
	3 Months Avg SMM					45.4170%	12.3589%	13.9744%
	12 Months Avg SMM
	Avg SMM Since Cut-off					4.2191%	12.3417%	12.9372%
	CPR					4256.5901%	1155.6289%	1855.7991%
	3 Months Avg CPR					4150.7658%	1529.0067%	2134.2427%
	12 Months Avg CPR
	Avg CPR Since Cut-off					4045.3335%	1423.9315%	2028.8619%
	PSA					~~3006~~933.1954%	~~193~~931.6550%	~~313~~931.1087%
	3 Months Avg PSA Approximation					~~933~~842.8699%	~~545~~985.4078%	~~414~~655.6589%
	12 Months Avg PSA Approximation
	Avg PSA Since Cut-off Approximation					~~830~~755.8778%	~~656~~1144.4076%	~~418~~570.0972%
	Group 1
	Group 2
CPR by Groups					Total CPR
PSA by Groups					Total PSA
				Page 18 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 18 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Prepayment Report for July 26, 2004 Distribution
	Prepayment Report for September 27, 2004 Distribution
	Prepayment Report - Voluntary Prepayments
	Group 1
	Group 2
CPR Avg since Cut-Off by Groups					Total CPR Avg since Cut-Off
PSA Avg since Cut-Off by Groups					Total PSA Avg since Cut-Off
PREPAYMENT CALCULATION METHODOLOGY
Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases)/(Beg Principal Balance - Sched Principal)
Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)
PSA Standard Prepayment Model: CPR/(0.02*min(30,WAS))
Average SMM over period between nth month and mth month (AvgSMMn,m): [(1-SMMn) * (1-SMMn+1) .......(1-SMMm)]^(1/months in period n,m)
Average CPR over period between the nth month and mth month (AvgCPRn,m): 1-((1-AvgSMMn,m)^12)
Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.002*Avg WASn,m))
Average WASn,m: (min(30,WASn)+min(30,WASn+1)+.......+min(30,WASm)/(number of months in the period n,m)
Weighted Average Seasoning (WAS)
Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments and repurchases.
Dates correspond to distribution dates.
				Page 19 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 19 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Prepayment Detail Report for July 26, 2004 Distribution
	Prepayment Detail Report for September 27, 2004 Distribution
	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution
SUMMARY						LOAN GROUP
Total Loan Count = 18						Loan Group 1 = Group 1
Total Loan Count = 55						Loan Group 1 = Group 1
Total Original Principal Balance = 5,605,050.00						Loan Group 2 = Group 2
Total Original Principal Balance = 17,246,098.00						Loan Group 2 = Group 2
Total Prepayment Amount = 4,515,599.57
Total Prepayment Amount = 16,804,604.33
Loan Number			Original			Current	State &	Type Prepayment
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Original Term	Date
2732983 1			618,500.00	613,024.52	Jun-29-04	6.750%	CA - 76.83%	Paid Off - 360	Sep-18-03
266027 1			80,000.00	73,694.94	Aug-12-04	8.250%	GA - 80.00%	Paid Off - 360	Sep-30-97
2779769 1			121,600.00	120,632.04	Jun-28-04	7.500%	CA - 95.00%	Paid Off - 360	Aug-28-03
1461230 1			389,480.00	378,861.29	Sep-02-04	6.375%	CA - 64.91%	Paid Off - 360	Feb-12-02
2779869 1			650,000.00	645,205.56	Jun-30-04	6.875%	CA - 71.43%	Paid Off - 360	Sep-04-03
2156111 1			636,000.00	607,070.20	Sep-02-04	5.125%	CA - 41.03%	Paid Off - 360	Jul-28-03
3157580 1			400,000.00	397,427.29	Jun-16-04	6.500%	MA - 66.67%	Paid Off - 360	Oct-27-03
2630010 1			181,800.00	179,695.06	Aug-31-04	6.750%	NY - 90.00%	Paid Off - 360	Jun-06-03
3157690 1			379,200.00	377,353.34	Jul-01-04	7.125%	NC - 80.00%	Paid Off - 360	Nov-28-03
3157403 1			350,000.00	346,114.50	Aug-24-04	6.250%	MA - 24.95%	Paid Off - 360	Aug-15-03
13375 2			380,400.00	306,232.39	Jun-16-04	7.750%	CA - 47.55%	Paid Off - 360	Jul-29-93
3157590 1			399,960.00	397,054.85	Aug-24-04	6.625%	NJ - 80.00%	Paid Off - 360	Nov-12-03
16060 2			350,000.00	4,239.23	Jun-15-04	7.375%	CA - 68.63%	Paid Off - 180	Aug-30-93
3157608 1			491,050.00	487,815.09	Sep-10-04	6.375%	DC - 72.15%	Paid Off - 360	Dec-23-03
21109 2			222,000.00	188,899.95	Jul-07-04	7.375%	NJ - 77.89%	Paid Off - 360	Sep-28-93
3157687 1			639,500.00	635,007.56	Aug-27-04	6.750%	WA - 79.94%	Paid Off - 360	Nov-06-03
28915 2			330,000.00	263,038.25	Jun-10-04	7.125%	NY - 79.33%	Paid Off - 360	Jan-12-94
3158281 1			342,000.00	340,027.41	Aug-24-04	6.250%	CA - 61.62%	Paid Off - 360	Jan-26-04
57259 2			328,000.00	231,951.94	Jun-15-04	8.000%	CA - 80.00%	Paid Off - 360	Apr-18-94
3210721 1			580,000.00	577,220.76	Aug-26-04	8.000%	CA - 80.00%	Paid Off - 360	Dec-22-03
65341 2			399,000.00	131,040.60	Jun-29-04	8.500%	NJ - 70.00%	Paid Off - 180	Jul-21-94
3482592 1			248,000.00	246,596.70	Sep-02-04	6.350%	NY - 41.33%	Paid Off - 360	Feb-20-04
224300 2			285,000.00	186,378.65	Jul-09-04	8.750%	CA - 75.00%	Paid Off - 180	Feb-12-97
87922 2			17,200.00	213.23	Aug-27-04	9.125%	PR - 30.71%	Paid Off - 120	Nov-14-94
302043 2			40,000.00	37,487.80	Jul-01-04	8.500%	IL - 75.47%	Paid Off - 360	Feb-06-98
310311 2			412,500.00	392,817.90	Aug-24-04	9.875%	FL - 75.00%	Paid Off - 360	Mar-27-98
305767 2			332,000.00	309,579.16	Jun-30-04	7.875%	CA - 80.00%	Paid Off - 360	Feb-13-98
310877 2			49,000.00	44,725.45	Sep-14-04	8.000%	NY - 89.09%	Paid Off - 360	Sep-17-98
321934 2			117,600.00	103,859.86	Jul-01-04	8.375%	NY - 70.00%	Paid Off - 360	Sep-10-98
478707 2			30,000.00	480.46	Aug-30-04	7.875%	NY - 57.14%	Paid Off - 360	Jun-14-99
326421 2			64,500.00	46,313.32	Jul-09-04	7.875%	FL - 75.00%	Paid Off - 180	Apr-27-98
666117 2			36,000.00	34,335.60	Aug-24-04	9.875%	NY - 80.00%	Paid Off - 360	Jun-13-00
335941 2			251,250.00	236,962.46	Jun-21-04	8.375%	CA - 75.00%	Paid Off - 360	Jul-14-98
2844604 1			109,540.00	108,571.07	Sep-01-04	7.250%	NC - 93.62%	Repur/Subs - 360	Aug-25-03
422542 2			336,000.00	315,973.21	Jul-06-04	8.000%	WA - 80.00%	Paid Off - 360	Oct-30-98
2904887 1			375,000.00	372,701.45	Sep-01-04	6.750%	IN - 77.32%	Repur/Subs - 360	Jan-13-04
					Page 20 of 27				© COPYRIGHT 2004 Deutsche Bank
3138953 1			159,000.00	158,087.70	Sep-01-04	6.875%	NY - 40.77%	Repur/Subs - 360	Feb-03-04
3153616 1			275,000.00	272,363.38	Sep-01-04	8.000%	NY - 73.33%	Repur/Subs - 360	Jul-23-03
3154148 1			367,500.00	363,538.23	Sep-01-04	6.875%	CA - 75.00%	Repur/Subs - 360	Sep-02-03
3154846 1			193,000.00	191,645.27	Sep-01-04	7.375%	WI - 89.77%	Repur/Subs - 360	Nov-26-03
3156736 1			450,000.00	446,683.22	Aug-16-04	7.125%	NY - 90.00%	Repur/Subs - 360	Oct-14-03
3157022 1			125,000.00	124,270.08	Sep-01-04	7.000%	ME - 38.70%	Repur/Subs - 360	Dec-11-03
3157032 1			105,000.00	104,215.17	Sep-01-04	6.750%	NH - 57.38%	Repur/Subs - 360	Dec-11-03
3157502 1			584,000.00	578,368.03	Sep-01-04	7.000%	NM - 77.87%	Repur/Subs - 360	Oct-22-03
3157565 1			486,000.00	482,585.84	Sep-01-04	6.750%	CO - 73.64%	Repur/Subs - 360	Nov-12-03
3157862 1			420,000.00	417,578.06	Sep-01-04	7.125%	MA - 64.62%	Repur/Subs - 360	Dec-30-03
3158493 1			407,880.00	405,774.09	Sep-01-04	6.875%	NY - 80.00%	Repur/Subs - 360	Jan-21-04
3206581 1			147,828.00	146,642.90	Sep-01-04	7.250%	CA - 80.17%	Repur/Subs - 360	Nov-26-03
3273111 1			240,000.00	238,742.59	Sep-01-04	6.750%	CA - 53.93%	Repur/Subs - 360	Feb-18-04
3284644 1			382,000.00	380,415.45	Sep-01-04	7.000%	CA - 80.00%	Repur/Subs - 360	Feb-26-04
3298400 1			235,000.00	234,049.14	Sep-01-04	7.125%	CA - 58.75%	Repur/Subs - 360	Feb-26-04
3324413 1			398,000.00	396,308.88	Sep-01-04	6.875%	CA - 71.07%	Repur/Subs - 360	Feb-25-04
3342440 1			408,750.00	407,013.20	Sep-01-04	6.875%	NY - 75.00%	Repur/Subs - 360	Feb-24-04
3355150 1			431,150.00	429,530.02	Sep-01-04	7.500%	GA - 78.97%	Repur/Subs - 360	Feb-23-04
3387446 1			365,000.00	363,410.95	Sep-01-04	6.750%	MA - 64.60%	Repur/Subs - 360	Feb-19-04
3402907 1			230,000.00	228,484.70	Sep-01-04	6.750%	CA - 53.49%	Repur/Subs - 360	Feb-13-04
3460587 1			436,720.00	434,818.68	Sep-01-04	6.750%	GA - 80.00%	Repur/Subs - 360	Feb-27-04
3461280 1			400,000.00	398,644.20	Sep-01-04	6.875%	CA - 69.57%	Repur/Subs - 360	Mar-11-04
3461879 1			416,000.00	414,232.43	Sep-01-04	6.875%	CA - 80.00%	Repur/Subs - 360	Mar-04-04
3482926 1			650,000.00	646,234.96	Sep-01-04	6.875%	CA - 74.88%	Repur/Subs - 360	Feb-27-04
3501780 1			480,000.00	478,332.93	Sep-01-04	6.750%	CA - 45.28%	Repur/Subs - 360	Mar-15-04
3525796 1			228,740.00	227,598.50	Sep-01-04	7.000%	CA - 59.88%	Repur/Subs - 360	Feb-27-04
					Page 20 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Realized Loss Report for July 26, 2004 Distribution
	Prepayment Detail Report for September 27, 2004 Distribution
	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution
Loan Number			Original			Current	State &
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Term	Date
271567 2			328,500.00	304,671.64	Sep-01-04	8.125%	AZ - 90.00%	Repur/Subs - 360	Sep-22-97
277144 2			134,750.00	118,096.86	Sep-01-04	9.250%	NY - 70.00%	Repur/Subs - 360	Feb-26-98
307673 2			345,000.00	320,189.11	Sep-01-04	7.500%	CA - 73.40%	Repur/Subs - 360	Apr-14-98
313196 2			360,000.00	335,000.42	Sep-01-04	7.750%	UT - 80.00%	Repur/Subs - 360	Apr-20-98
349000 2			150,000.00	108,903.06	Sep-01-04	8.375%	NY - 75.00%	Repur/Subs - 360	Aug-31-98
353041 2			123,750.00	114,529.53	Sep-01-04	8.250%	CA - 75.00%	Repur/Subs - 360	Jul-10-98
354546 2			340,000.00	298,464.45	Sep-01-04	7.375%	CA - 80.00%	Repur/Subs - 360	Jul-01-98
354607 2			115,500.00	109,481.93	Sep-01-04	8.875%	NY - 70.00%	Repur/Subs - 360	Sep-17-98
396245 2			325,000.00	304,656.70	Sep-01-04	8.000%	CA - 73.86%	Repur/Subs - 360	Aug-25-98
419118 2			336,000.00	312,905.07	Sep-01-04	7.500%	TX - 80.00%	Repur/Subs - 360	Oct-26-98
481839 2			299,000.00	285,133.44	Sep-01-04	8.500%	NY - 66.59%	Repur/Subs - 360	Jul-13-99
					Page 21 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Realized Loss Report for September 27, 2004 Distribution
	Realized Loss Report - Collateral
COLLATERAL REALIZED LOSSES						GROUP 2	GROUP 1	TOTAL
	Current
	Number of Loans Liquidated					-	-	-
	Collateral Realized Loss/(Gain) Amount					-	-	-
	Net Liquidation Proceeds					-	-	-
	Cumulative
	Number of Loans Liquidated					-	-	-
	Collateral Realized Loss/(Gain) Amount					-	-	-
	Net Liquidation Proceeds					-	-	-
	Note: Collateral Realized Loss Amount may include adjustments to loans liquidated in prior periods.
	Current Realized Losses					0.00	0.00	0.00
	Supplemental Losses (Recoveries)					0.00	0.00	0.00
	Current Net Realized Losses (Recoveries)					0.00	0.00	0.00
	Prior Cumulative Realized Loss					0.00	0.00	0.00
	Current Net Realized Loss (Recoveries)					0.00	0.00	0.00
	Current Cumulative Realized Loss					0.00	0.00	0.00
	Current Special Hazard Loss Coverage Amount					1,~~213~~210,~~340~~535.7034	2,511,341.00	3,~~724~~721,~~681~~876.7034
	Current Fraud Loss Coverage Amount					600,000.00	2,250,000.00	2,850,000.00
	Current Bankruptcy Loss Coverage Amount					100,000.00	100,000.00	200,000.00
	Class 1-B-1 Write Down Amount							0.00
	Class 1-B-2 Write Down Amount							0.00
	Class 1-B-3 Write Down Amount							0.00
	Class 1-B-4 Write Down Amount							0.00
	Class 1-B-5 Write Down Amount							0.00
	Class1-B-6 Write Down Amount							0.00
	Class 2-B-1 Write Down Amount							0.00
	Class 2-B-2 Write Down Amount							0.00
	Class 2-B-3 Write Down Amount							0.00
	Class 2-B-4 Write Down Amount							0.00
	Group 1						3 Months Moving Average
	Group 2
Collateral Loss Severity Approximation by Groups					Collateral Loss Severity Approximation
				Page 21 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 22 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Realized Loss Report for July 26, 2004 Distribution
	Realized Loss Report for September 27, 2004 Distribution
	Realized Loss Report - Collateral
DEFAULT SPEEDS						GROUP 2	GROUP 1	TOTAL
	MDR					0.00%	0.00%	0.00%
	3 Months Avg MDR					0.00%	0.00%	0.00%
	12 Months Avg MDR
	Avg MDR Since Cut-off					0.00%	0.00%	0.00%
	CDR					0.00%	0.00%	0.00%
	3 Months Avg CDR					0.00%	0.00%	0.00%
	12 Months Avg CDR
	Avg CDR Since Cut-off					0.00%	0.00%	0.00%
	SDA					0.00%	0.00%	0.00%
	3 Months Avg SDA Approximation					0.00%	0.00%	0.00%
	12 Months Avg SDA Approximation
	Avg SDA Since Cut-off Approximation					0.00%	0.00%	0.00%
	Loss Severity Approximation for Current Period
	3 Months Avg Loss Severity Approximation
	12 Months Avg Loss Severity Approximation
	Avg Loss Severity Approximation Since Cut-off
	Group 1
	Group 2
CDR by Groups					Total CDR
SDA by Groups					Total SDA
				Page 22 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 23 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Realized Loss Report for July 26, 2004 Distribution
	Realized Loss Report for September 27, 2004 Distribution
	Realized Loss Report - Collateral
	Group 1
	Group 2
CDR Avg since Cut-Off by Groups					Total CDR Avg since Cut-Off
SDA Avg since Cut-Off by Groups					Total SDA Avg since Cut-Off
COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY
Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)
Conditional Default Rate (CDR): 1-((1-MDR)^12)
SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)0.02,MAX(0.03,MIN(30,WAS)0.02-0.0095*(WAS-60)))
Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn) * (1-MDRn+1) .......(1-MDRm)]^(1/months in period n,m)
Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)
Average SDA Approximation over period between the nth month and mth month:
AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)0.02,MAX(0.03,MIN(30,Avg WASn,m)0.02-0.0095*(Avg WASn,m-60)))
Average WASn,m: (WASn + WASn+1 +.......+ WASm )/(number of months in the period n,m)
Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)
Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)
Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.
Dates correspond to distribution dates.
				Page 23 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 24 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Realized Loss Detail Report for July 26, 2004 Distribution
	Realized Loss Detail Report for September 27, 2004 Distribution
	Realized Loss Detail Report - Loans Liquidated During Current Distribution
SUMMARY							LOAN GROUP
Total Loan Count Current Losses = 0
Total Loan Count Revisions = 0						Loan Group 1 = Group 1
Total Prior Principal Balance = 0.00						Loan Group 2 = Group 2
Total Current Realized Loss Amount = 0.00
Total Revisions Amount = 0.00
Total Realized Loss Amount = 0.00
Total Net Liquidation Proceeds = 0.00
Note: Total Realized Loss Amount may include adjustments to loans liquidated in prior periods.
Loan Number			Current	State &		Prior	Realized		Cumulative
&		Loan	Note	LTV at	Original	Principal	Loss/(Gain)	Realized	Realized
Loan Group		Status	Rate	Origination	Term	Balance	Revisions	Loss/(Gain)	Loss/(Gain)
SPACE INTENTIONALLY LEFT BLANK
					Page 24 of 27				© COPYRIGHT 2004 Deutsche Bank
					Page 25 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Triggers, Adj. Rate Cert. and Miscellaneous Report for July 26, 2004 Distribution
	Triggers, Adj. Rate Cert. and Miscellaneous Report for September 27, 2004 Distribution
	Triggers, Adj. Rate Cert. and Miscellaneous Report
TRIGGER EVENTS						GROUP 2	GROUP 1	TOTAL
	Has the Optional Termination Date been reached?							No
	Have the Sr. Prepay Step Down Cond been satisfied?					No	No
	Has the Sr. Credit Supp. Depletion Date been reached?					No	No
	Has the Spec. Haz. Coverage Term Date been reached?					No	No
	Has the Fraud LossCoverage Term. Date been reached?					No	No
	Has the Bank LossCoverage Term. Date been reached?					No	No
ADJUSTABLE RATE CERTIFICATE INFORMATION						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
ADDITIONAL INFORMATION						GROUP 2	GROUP 1	TOTAL
	Current Senior Percentage					9796.~~164010~~841327%	95.~~285794~~191438%
	Next Senior Percentage					9796.~~029788~~805563%	95.~~237143~~086609%
	Current Subordinate Percentage					23.~~835990~~158673%	4.~~714206~~808562%
	Next Subordinate Percentage					23.~~970212~~194437%	4.~~762857~~913391%
	Current Senior Prepayment Percentage					100.000000%	100.000000%
	Current Subordinated Prepayment Percentage					0.000000%	0.000000%
	Next Projected Pass-Through Rate for Class 1-A-3							12.~~850000~~015000%
	Next Projected Pass-Through Rate for Class 1-A-4							65.~~150000~~985000%
	Next Projected Pass-Through Rate for Class 2-A-1							2.~~000000~~165000%
	Next Projected Pass-Through Rate for Class 2-A-2							5.~~752118~~547830%
	Next Projected Pass-Through Rate for Class 1-A-X							0.~~560346~~514442%
	Next Projected Pass-Through Rate for Class 2-B-X							2.~~252118~~212830%
	Next Projected Pass-Through Rate for all other classes							5.500000%
				Page 25 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 26 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Other Related Information for July 26, 2004 Distribution
	Other Related Information for September 27, 2004 Distribution
	Other Related Information
ADDITIONAL INFORMATION						GROUP 2	GROUP 1	TOTAL
	Scheduled Principal
	1 Month Prior							~~486~~457,~~036~~100.0026
	2 Months Prior							~~496,~~472,601.6578
	3 Months Prior							~~510~~486,~~195~~036.4400
	4 Months Prior							~~536~~496,~~437~~472.0665
	5 Months Prior							0510,195.0044
	6 Months Prior							0536,437.0006
	7 Months Prior							0.00
	8 Months Prior							0.00
	9 Months Prior							0.00
	10 Months Prior							0.00
	11 Months Prior							0.00
	12 Months Prior							0.00
	Scheduled Principal on 60+ Day Delinquent Loans
	1 Month Prior							3,~~863~~722.4221
	2 Months Prior							25,~~693~~792.2370
	3 Months Prior							3,~~350~~863.4442
	4 Months Prior							02,693.0023
	5 Months Prior							03,350.0044
	6 Months Prior							0.00
	7 Months Prior							0.00
	8 Months Prior							0.00
	9 Months Prior							0.00
	10 Months Prior							0.00
	11 Months Prior							0.00
	12 Months Prior							0.00
				Page 26 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 27 of 28				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A2
	Mortgage Pass-Through Certificates
	Additional Certificate Report for July 26, 2004 Distribution
	Additional Certificate Report for September 27, 2004 Distribution
	Additional Certificate Report
	CLASS				Net PPIS & Relief Act Shortfall Allocation	Unpaid Interest Amount Due	Unpaid Interest Paid	Remaining Unpaid Interest Amount
	1-A-1				0.00	0.00	0.00	0.00
	1-A-2				0.00	0.00	0.00	0.00
	1-A-3				0.00	0.00	0.00	0.00
	1-A-4				0.00	0.00	0.00	0.00
	1-A-5				0.00	0.00	0.00	0.00
	1-A-6				0.00	0.00	0.00	0.00
	1-A-7				0.00	0.00	0.00	0.00
	1-A-8				0.00	0.00	0.00	0.00
	1-A-9				0.00	0.00	0.00	0.00
	P				0.00	0.00	~~3,616~~0.6300	0.00
	A-R				0.00	0.00	0.00	0.00
	1-PO				0.00	0.00	0.00	0.00
	1-B-1				0.00	0.00	0.00	0.00
	1-B-2				0.00	0.00	0.00	0.00
	1-B-3				0.00	0.00	0.00	0.00
	1-B-4				0.00	0.00	0.00	0.00
	1-B-5				0.00	0.00	0.00	0.00
	1-B-6				0.00	0.00	0.00	0.00
				Page 27 of 27				© COPYRIGHT 2004 Deutsche Bank
				Page 28 of 28				© COPYRIGHT 2004 Deutsche Bank

Filing Compare · INDYMAC MBS INC RESIDENTIAL ASSET SEC TRUST 2004 A2