SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K /A

Current Report Pursuant To Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 25, 2002

INDYMAC MBS, INC.

as Depositor, IndyMac Bank, F.S.B. as Seller and as Master Servicer,

and Deutsche Bank National Trust Company, formerly known as

Bankers Trust Company of California, N.A., as trustee

under the Pooling and Servicing Agreement, dated as of

March 1, 2002, providing for the issuance of IndyMac MBS, Inc.

Residential Asset-Securitization Trust Series 2002-A4 Mortgage

Pass-Through Certificates Series 2002-D.

INDYMAC MBS INC RESIDENTIAL ASSET SECURITIZATION TR 2002-A4

(Exact name of Registrant as specified in its Charter)

DELAWARE

(State or Other Jurisdiction of Incorporation)

333-82831-05 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

Item 5. 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 7. Financial Statement and Exhibits

Exhibits: (as noted in Item 5 above)

Monthly Remittance Statement to the Certificateholders dated as of

September 25, 2002

SIGNATURE

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,

formerly known as Bankers Trust Company of

California, N.A., not in its

individual capacity, but solely as a

duly authorized agent of the Registrant

pursuant to the Pooling and Servicing

Agreement, dated as of March 1, 2002.

Date: Jan 23, 2003 By: /s/ Katie Wannenmacher

Katie Wannenmacher

Vice President

EXHIBIT INDEX

DOCUMENT

Monthly Remittance Statement to the Certificateholders

dated as of September 25, 2002.


	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates


	September 25, 2002 Distribution


	Contents



			TABLE OF CONTENTS

								Page

			1.	Contents				1
			2.	Certificate Payment Report				2
			3.	Collection Account Report				8
			4.	Credit Enhancement Report				11
			5.	Collateral Report				12
			6.	Delinquency Report				15
			7.	REO Report				16
			8.	Prepayment Report				17
			9.	Prepayment Detail Report				20
			10.	Realized Loss Report				21
			11.	Realized Loss Detail Report				24
			12.	Triggers, Adj. Rate Cert. and Miscellaneous Report				25
			13.	Other Related Information				26
			14.	Additional Certificate Report				27



				Total Number of Pages				27



			CONTACTS

				Administrator: James F Noriega
				Direct Phone Number: (714)247-6281
				Address: Deutsche Bank
				1761 E. St. Andrew Place, Santa Ana, CA 92705

				Web Site: http://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, 2002
	Certificate Insurer(s):							Closing Date: March 28, 2002
								First Payment Date: April 25, 2002
	Servicer(s):		IndyMac Bank Master Servicer


								Distribution Date: September 25, 2002
	Underwriter(s):		Lehman Brothers Securities Corporation					Record Date: August 30, 2002







						Page 1 of 27					© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates
	SUBSIDIARY REMIC Series RAST 2002-A4
	Certificate Payment Report for September 25, 2002 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)

SA		292,499,900.00			270,903,071.93	1,638,879.04	7,393,873.51	9,032,752.55	-	-	263,509,198.42
SB1		4,875,000.00			4,875,000.00	29,492.23	-	29,492.23	-	-	4,875,000.00
SB2		4,875,000.00			4,875,000.00	29,492.23	-	29,492.23	-	-	4,875,000.00
SB3		22,750,000.00			22,750,000.00	137,630.40	-	137,630.40	-	-	22,750,000.00
R		-			-	-	-	-	-	-	-
P		100.00			100.00	11,356.05	-	11,356.05	-	-	100.00


Total		325,000,000.00			303,403,171.93	1,846,849.95	7,393,873.51	9,240,723.46	-	-	296,009,298.42


	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)

SA				F-30/360		292,499,900.00	926.164665	5.603007	25.278209	30.881216	900.886456
SB1				F-30/360		4,875,000.00	1,000.000000	6.049688	-	6.049688	1,000.000000
SB2				F-30/360		4,875,000.00	1,000.000000	6.049688	-	6.049688	1,000.000000
SB3				F-30/360		22,750,000.00	1,000.000000	6.049688	-	6.049688	1,000.000000
R				F-30/360		-	-	-	-	-	-
P				F-30/360		100.00	1,000.000000	113,560.501000	-	113,560.501000	1,000.000000


							Page 2 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates
	SUBSIDIARY REMIC Series RAST 2002-A4
	Certificate Payment Report for September 25, 2002 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)

SA	292,499,900.00		10,350,223.23		27,560,225.53	1,430,476.05	28,990,701.58	39,340,924.81	-	-	263,509,198.42
SB1	4,875,000.00		177,246.25		-	-	-	177,246.25	-	-	4,875,000.00
SB2	4,875,000.00		177,246.25		-	-	-	177,246.25	-	-	4,875,000.00
SB3	22,750,000.00		827,149.16		-	-	-	827,149.16	-	-	22,750,000.00
R	-		-		-	-	-	-	-	-	-
P	100.00		29,380.80		-	-	-	29,380.80	-	-	100.00


Total	325,000,000.00		11,561,245.69		27,560,225.53	1,430,476.05	28,990,701.58	40,551,947.27	-	-	296,009,298.42


	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)

SA	7.25963%	270,903,071.93			1,638,879.04	-	-	-	1,638,879.04	1,638,879.04	(0.02)
SB1	7.25963%	4,875,000.00			29,492.23	-	-	-	29,492.23	29,492.23	-
SB2	7.25963%	4,875,000.00			29,492.23	-	-	-	29,492.23	29,492.23	-
SB3	7.25963%	22,750,000.00			137,630.40	-	-	-	137,630.40	137,630.40	-
R	7.25963%	-			-	-	-	-	-	-	-
P		100.00			11,356.05	-	-	-	11,356.05	11,356.05	-


Total		303,403,171.93			1,846,849.95	-	-	-	1,846,849.95	1,846,849.95	(0.02)


							Page 3 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates
	INTERMEDIATE REMIC Series RAST 2002-A4
	Certificate Payment Report for September 25, 2002 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)

IA-1		47,000,050.00			36,201,635.97	210,929.74	3,696,936.76	3,907,866.49	-	-	32,504,699.21
IA-2		53,850,000.00			53,850,000.00	313,758.37	-	313,758.37	-	-	53,850,000.00
IA-3		15,150,000.00			15,150,000.00	88,271.85	-	88,271.85	-	-	15,150,000.00
IA-4		16,050,000.00			16,050,000.00	93,515.73	-	93,515.73	-	-	16,050,000.00
IA-5		21,918,000.00			21,918,000.00	127,705.77	-	127,705.77	-	-	21,918,000.00
IA-IO		-			-	67,708.33	-	67,708.33	-	-	-
IM-1		3,656,500.00			3,656,500.00	21,304.69	-	21,304.69	-	-	3,656,500.00
IM-2		2,843,900.00			2,843,900.00	16,570.05	-	16,570.05	-	-	2,843,900.00
IB		2,031,500.00			2,031,500.00	11,836.59	-	11,836.59	-	-	2,031,500.00
Accrual		162,499,950.00			151,701,535.97	883,892.78	3,696,936.76	4,580,829.53	-	-	148,004,599.21
IR		-			-	-	-	-	-	-	-


Total		324,999,900.00			303,403,071.93	1,835,493.90	7,393,873.51	9,229,367.41	-	-	296,009,198.42


	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)

IA-1				F-30/360		47,000,050.00	770.246754	4.487862	78.658145	83.146007	691.588609
IA-2				F-30/360		53,850,000.00	1,000.000000	5.826525	-	5.826525	1,000.000000
IA-3				F-30/360		15,150,000.00	1,000.000000	5.826525	-	5.826525	1,000.000000
IA-4				F-30/360		16,050,000.00	1,000.000000	5.826525	-	5.826525	1,000.000000
IA-5				F-30/360		21,918,000.00	1,000.000000	5.826525	-	5.826525	1,000.000000
IA-IO				F-30/360		32,500,000.00	1,000.000000	2.083333	-	2.083333	1,000.000000
IM-1				F-30/360		3,656,500.00	1,000.000000	5.826525	-	5.826525	1,000.000000
IM-2				F-30/360		2,843,900.00	1,000.000000	5.826523	-	5.826523	1,000.000000
IB				F-30/360		2,031,500.00	1,000.000000	5.826527	-	5.826527	1,000.000000
Accrual				F-30/360		162,499,950.00	933.548201	5.439342	22.750387	28.189729	910.797814
IR				F-30/360		-	-	-	-	-	-


							Page 4 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates
	INTERMEDIATE REMIC Series RAST 2002-A4
	Certificate Payment Report for September 25, 2002 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)

IA-1	47,000,050.00		1,511,468.58		13,780,112.77	715,238.02	14,495,350.79	16,006,819.37	-	-	32,504,699.21
IA-2	53,850,000.00		1,888,872.59		-	-	-	1,888,872.59	-	-	53,850,000.00
IA-3	15,150,000.00		531,409.84		-	-	-	531,409.84	-	-	15,150,000.00
IA-4	16,050,000.00		562,978.74		-	-	-	562,978.74	-	-	16,050,000.00
IA-5	21,918,000.00		768,807.98		-	-	-	768,807.98	-	-	21,918,000.00
IA-IO	-		406,250.04		-	-	-	406,250.04	-	-	-
IM-1	3,656,500.00		128,257.43		-	-	-	128,257.43	-	-	3,656,500.00
IM-2	2,843,900.00		99,754.22		-	-	-	99,754.22	-	-	2,843,900.00
IB	2,031,500.00		71,258.03		-	-	-	71,258.03	-	-	2,031,500.00
Accrual	162,499,950.00		5,562,807.43		13,780,112.77	715,238.02	14,495,350.79	20,058,158.22	-	-	148,004,599.21
IR	-		-		-	-	-	-	-	-	-


Total	324,999,900.00		11,531,864.89		27,560,225.53	1,430,476.05	28,990,701.58	40,522,566.47	-	-	296,009,198.42


	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)

IA-1	6.99183%	36,201,635.97			210,929.74	-	-	-	210,929.74	210,929.74	-
IA-2	6.99183%	53,850,000.00			313,758.37	-	-	-	313,758.37	313,758.37	-
IA-3	6.99183%	15,150,000.00			88,271.85	-	-	-	88,271.85	88,271.85	-
IA-4	6.99183%	16,050,000.00			93,515.73	-	-	-	93,515.73	93,515.73	-
IA-5	6.99183%	21,918,000.00			127,705.77	-	-	-	127,705.77	127,705.77	-
IA-IO	2.50000%	32,500,000.00			67,708.33	-	-	-	67,708.33	67,708.33	-
IM-1	6.99183%	3,656,500.00			21,304.69	-	-	-	21,304.69	21,304.69	-
IM-2	6.99183%	2,843,900.00			16,570.05	-	-	-	16,570.05	16,570.05	-
IB	6.99183%	2,031,500.00			11,836.59	-	-	-	11,836.59	11,836.59	-
Accrual	6.99183%	151,701,535.97			883,892.78	-	-	-	883,892.78	883,892.78	-
IR		-			-	-	-	-	-	-	-


Total		335,903,071.93			1,835,493.90	-	-	-	1,835,493.90	1,835,493.90	-


							Page 5 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates
	MASTER REMIC Series RAST 2002-A4
	Certificate Payment Report for September 25, 2002 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)

A-1	FLT,AS	94,000,000.00			72,403,271.93	121,275.48	7,393,873.51	7,515,148.99	-	-	65,009,398.42
A-2	AFC,AS	107,700,000.00			107,700,000.00	554,655.00	-	554,655.00	-	-	107,700,000.00
A-3	AFC,AS	30,300,000.00			30,300,000.00	170,437.50	-	170,437.50	-	-	30,300,000.00
A-4	AFC,AS	32,100,000.00			32,100,000.00	187,031.45	-	187,031.45	-	-	32,100,000.00
A-5	STEP,AFC,AS	43,836,000.00			43,836,000.00	255,411.55	-	255,411.55	-	-	43,836,000.00
A-IO	IO,NTL	-			-	67,708.33	-	67,708.33	-	-	-
M-1	SUB,STEP,NA	7,313,000.00			7,313,000.00	42,609.38	-	42,609.38	-	-	7,313,000.00
M-2	SUB,STEP,NA	5,687,800.00			5,687,800.00	33,140.11	-	33,140.11	-	-	5,687,800.00
B	SUB,STEP,NA	4,063,000.00			4,063,000.00	23,673.17	-	23,673.17	-	-	4,063,000.00
OC	EXE	-			-	379,551.93	-	379,551.93	-	-	-
A-R	R,AS	100.00			-	-	-	-	-	-	-


Total		324,999,900.00			303,403,071.93	1,835,493.90	7,393,873.51	9,229,367.41	-	-	296,009,198.42


	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)

A-1	08/26/02	09/24/02		F-30/360	45660NCW3	94,000,000.00	770.247574	1.290165	78.658229	79.948394	691.589345
A-2				F-30/360	45660NCX1	107,700,000.00	1,000.000000	5.150000	-	5.150000	1,000.000000
A-3				F-30/360	45660NCY9	30,300,000.00	1,000.000000	5.625000	-	5.625000	1,000.000000
A-4				F-30/360	45660NCZ6	32,100,000.00	1,000.000000	5.826525	-	5.826525	1,000.000000
A-5				F-30/360	45660NDA0	43,836,000.00	1,000.000000	5.826525	-	5.826525	1,000.000000
A-IO				F-30/360	45660NDB8	32,500,000.00	1,000.000000	2.083333	-	2.083333	1,000.000000
M-1				F-30/360	45660NDD4	7,313,000.00	1,000.000000	5.826525	-	5.826525	1,000.000000
M-2				F-30/360	45660NDE2	5,687,800.00	1,000.000000	5.826525	-	5.826525	1,000.000000
B				F-30/360	45660NDF9	4,063,000.00	1,000.000000	5.826525	-	5.826525	1,000.000000
OC				F-30/360		324,999,900.00	933.548201	1.167852	-	1.167852	910.797814
A-R				F-30/360	45660NDC6	100.00	-	-	-	-	-


							Page 6 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates
	MASTER REMIC Series RAST 2002-A4
	Certificate Payment Report for September 25, 2002 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)

A-1	94,000,000.00		902,722.71		27,560,199.97	1,430,401.61	28,990,601.58	29,893,324.29	-	-	65,009,398.42
A-2	107,700,000.00		3,327,930.00		-	-	-	3,327,930.00	-	-	107,700,000.00
A-3	30,300,000.00		1,022,625.00		-	-	-	1,022,625.00	-	-	30,300,000.00
A-4	32,100,000.00		1,123,281.45		-	-	-	1,123,281.45	-	-	32,100,000.00
A-5	43,836,000.00		1,533,961.55		-	-	-	1,533,961.55	-	-	43,836,000.00
A-IO	-		406,249.98		-	-	-	406,249.98	-	-	-
M-1	7,313,000.00		255,905.23		-	-	-	255,905.23	-	-	7,313,000.00
M-2	5,687,800.00		199,034.26		-	-	-	199,034.26	-	-	5,687,800.00
B	4,063,000.00		142,177.32		-	-	-	142,177.32	-	-	4,063,000.00
OC	-		1,967,977.39		-	-	-	1,967,977.39	-	-	-
A-R	100.00		-		25.56	74.44	100.00	100.00	-	-	-


Total	324,999,900.00		10,881,864.89		27,560,225.53	1,430,476.05	28,990,701.58	39,872,566.47	-	-	296,009,198.42


	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)

A-1	2.01000%	72,403,271.93			121,275.48	-	-	-	121,275.48	121,275.48	-
A-2	6.18000%	107,700,000.00			554,655.00	-	-	-	554,655.00	554,655.00	-
A-3	6.75000%	30,300,000.00			170,437.50	-	-	-	170,437.50	170,437.50	-
A-4	6.99183%	32,100,000.00			187,031.45	-	-	-	187,031.45	187,031.45	-
A-5	6.99183%	43,836,000.00			255,411.55	-	-	-	255,411.55	255,411.55	-
A-IO	2.50000%	32,500,000.00			67,708.33	-	-	-	67,708.33	67,708.33	-
M-1	6.99183%	7,313,000.00			42,609.38	-	-	-	42,609.38	42,609.38	-
M-2	6.99183%	5,687,800.00			33,140.11	-	-	-	33,140.11	33,140.11	-
B	6.99183%	4,063,000.00			23,673.17	-	-	-	23,673.17	23,673.17	-
OC	1.50118%	303,403,071.93			379,551.93	-	-	-	379,551.93	379,551.93	0.01
A-R		-			-	-	-	-	-	-	-


Total		639,306,143.86			1,835,493.90	-	-	-	1,835,493.90	1,835,493.90	0.01


							Page 7 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Collection Account Report for September 25, 2002 Distribution


	Collection Account Report


SUMMARY								TOTAL

	Principal Collections							7,393,873.51
	Principal Other Accounts							0.00
	TOTAL NET PRINCIPAL							7,393,873.51

	Interest Collections							1,939,978.39
	Interest Withdrawals							0.00
	Interest Other Accounts							11,356.05
	Interest Fees							(64,077.23)
	TOTAL NET INTEREST							1,887,257.21

	TOTAL AVAILABLE FUNDS FOR DISTRIBUTION							9,281,130.72


PRINCIPAL - COLLECTIONS								TOTAL

	Scheduled Principal Received							234,557.22
	Prepayments In Full							7,134,595.02
	Curtailments							24,721.27
	Liquidations							0.00
	Insurance Principal							0.00
	Repurchased Principal Amounts							0.00
	Other Principal							0.00
	Total Realized Loss Of Principal							0.00
	Delinquent Principal							(4,954.41)
	Advanced Principal							4,954.41

	TOTAL PRINCIPAL COLLECTED							7,393,873.51


				Page 8 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Collection Account Report for September 25, 2002 Distribution


	Collection Account Report


PRINCIPAL - WITHDRAWALS								TOTAL
SPACE INTENTIONALLY LEFT BLANK


PRINCIPAL - OTHER ACCOUNTS								TOTAL

	Unused Pre-Funding Amount							0.00

	TOTAL OTHER ACCOUNTS PRINCIPAL							0.00


INTEREST - COLLECTIONS								TOTAL

	Scheduled Interest							1,901,017.14
	Repurchased Interest							0.00
	Liquidation Interest							0.00
	Insurance Interest							0.00
	Other Interest							0.00
	Net Prepayment Interest Shortfalls							20,203.63
	Delinquent Interest							(45,914.18)
	Realized Losses							0.00
	Compensating Interest							20,203.63
	Subsistution Shortfalls							0.00
	Civil Releif Act Shortfalls							0.00
	Interest Advanced							44,468.17
	TOTAL INTEREST COLLECTED							1,939,978.39


				Page 9 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Collection Account Report for September 25, 2002 Distribution


	Collection Account Report


INTEREST - WITHDRAWALS								TOTAL

	Trust Fund Expenses							0.00
	Nonrecoverable Advances							0.00
	Reimbursements to Master Servicer							0.00

	TOTAL INTEREST WITHDRAWALS							0.00


INTEREST - OTHER ACCOUNTS								TOTAL

	Prepayment Charges							11,356.05
	Capitalized Interest Requirement							0.00
	Yield Maintenance							0.00

	TOTAL INTEREST OTHER ACCOUNTS							11,356.05


INTEREST - FEES								TOTAL

	Current Servicing Fees							61,762.97
	Lender Paid PMI							417.99
	Trustee Fee							1,896.27

	TOTAL INTEREST OTHER FEES							64,077.23


				Page 10 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Credit Enhancement Report for September 25, 2002 Distribution


	Credit Enhancement Report


ACCOUNTS								TOTAL

	Carryover Reserve Fund Available Balance							0.00
	Yield Maintenance Agreement Payment							0.00


	Beginning Available Funds Cap Reserve Fund Balance							650,000.00
	Available Funds Cap Reserve Fund Distributed to certificates							334.72
	Amounts withdrawn per Section 4.05							0.00
	Required Available Funds Cap Reserve Fund Deposit							0.00
	Ending Available Funds Cap Reserve Fund Balance							649,665.28


INSURANCE								TOTAL
SPACE INTENTIONALLY LEFT BLANK


STRUCTURAL FEATURES								TOTAL

	Overcollateralized Amount							0.00


				Page 11 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Collateral Report for September 25, 2002 Distribution


	Collateral Report


COLLATERAL								TOTAL
	Loan Count:
	*Original*							692
	Prior							690
	Prefunding							-
	Scheduled Paid Offs							-
	Full Voluntary Prepayments							(16)
	Repurchases							-
	Liquidations							-
	Current							674

	*Principal Balance:*
	Original							314,002,567.57
	Prior							303,403,071.93
	Prefunding							-
	Scheduled Principal							(234,557.22)
	Partial and Full Voluntary Prepayments							(7,159,316.29)
	Repurchases							-
	Liquidations							-
	Current							296,009,198.42

PREFUNDING								TOTAL

	Pre-Funding Amount Beginning Balance							0.00
	Withdrawal for Subsequent Home Equity Loans							0.00
	Unused Pre-Funding Amount							0.00
	Pre-Funding Amount Ending Balance							0.00




Current Prin Balance by Groups (in millions of dollars)					Total Current Principal Balance (in millions of dollars)


				Page 12 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Collateral Report for September 25, 2002 Distribution


	Collateral Report


CHARACTERISTICS								TOTAL

	Weighted Average Coupon Original							7.541635%
	Weighted Average Coupon Prior							7.520127%
	Weighted Average Coupon Current							7.518779%
	Weighted Average Months to Maturity Original							358
	Weighted Average Months to Maturity Prior							353
	Weighted Average Months to Maturity Current							352
	Weighted Avg Remaining Amortization Term Original							358
	Weighted Avg Remaining Amortization Term Prior							353
	Weighted Avg Remaining Amortization Term Current							352
	Weighted Average Seasoning Original							1.40
	Weighted Average Seasoning Prior							5.36
	Weighted Average Seasoning Current							6.35

Note: Original information refers to deal issue.




WAC by Groups					Total WAC


WARAT by Groups					Total WARAT


Note: Dates correspond to distribution dates.
				Page 13 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Collateral Report for September 25, 2002 Distribution


	Collateral Report


ARM CHARACTERISTICS								TOTAL

	Weighted Average Margin Original							0.000%
	Weighted Average Margin Prior							0.000%
	Weighted Average Margin Current							0.000%
	Weighted Average Max Rate Original							7.542%
	Weighted Average Max Rate Prior							7.520%
	Weighted Average Max Rate Current							7.519%
	Weighted Average Min Rate Original							7.542%
	Weighted Average Min Rate Prior							7.520%
	Weighted Average Min Rate Current							7.519%
	Weighted Average Cap Up Original							0.000%
	Weighted Average Cap Up Prior							0.000%
	Weighted Average Cap Up Current							0.000%
	Weighted Average Cap Down Original							0.000%
	Weighted Average Cap Down Prior							0.000%
	Weighted Average Cap Down Current							0.000%

Note: Original information refers to deal issue.

SERVICING FEES / ADVANCES								TOTAL

	Current Servicing Fees							61,762.97
	Delinquent Servicing Fees							1,446.00
	TOTAL SERVICING FEES							63,208.97

	Prepayment Interest Shortfall							20,203.63
	Compensating Interest							(20,203.63)

	Delinquent Servicing Fees							(1,446.00)
	COLLECTED SERVICING FEES							61,762.97

	Aggregate Advances with respect to this Distribution							49,422.58
	Current Nonrecoverable Advances							0.00
	Cumulative Nonrecoverable Advances							0.00


ADDITIONAL COLLATERAL INFORMATION								TOTAL

	Net Prepayment Interest Shortfall							0.00

	Total Monthly Excess Spread							379,551.93

	Weighted Average Net Mortgage Rate							7.2596%

	Adjusted Weighted Average Net Mortgage Rate							7.2596%
	(adjusted for shortfalls, Capitalized Int, and other int adj)


				Page 14 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Delinquency Report for September 25, 2002 Distribution


	Delinquency Report - Total


				CURRENT	1 PAYMENT	2 PAYMTS	3+ PAYMTS	TOTAL
DELINQUENT		Balance			3,395,560.64	2,977,301.26	164,754.33	6,537,616.23
		% Balance			1.15%	1.01%	0.06%	2.21%
		# Loans			8	7	1	16
		% # Loans			1.19%	1.04%	0.15%	2.37%
FORECLOSURE		Balance		-	-	-	398,235.16	398,235.16
		% Balance		0.00%	0.00%	0.00%	0.13%	0.13%
		# Loans		-	-	-	1	1
		% # Loans		0.00%	0.00%	0.00%	0.15%	0.15%
BANKRUPTCY		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
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		-	3,395,560.64	2,977,301.26	562,989.49	6,935,851.39
		% Balance		0.00%	1.15%	1.01%	0.19%	2.34%
		# Loans		-	8	7	2	17
		% # Loans		0.00%	1.19%	1.04%	0.30%	2.52%
Note: Current = 0-30days, 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 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	REO Report for September 25, 2002 Distribution


	REO Report - Mortgage Loans that Become REO During Current Distribution


SUMMARY				LOAN GROUP

Total Loan Count = 0				Loan Group 1 = Group; REO Book Value = 000.00
Total Original Principal Balance = 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 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Prepayment Report for September 25, 2002 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENTS								TOTAL

	*Current*
	Number of Paid in Full Loans							16
	Number of Repurchased Loans							-
	Total Number of Loans Prepaid in Full							16

	Paid in Full Balance							7,134,595.02
	Repurchased Loans Balance							-
	Curtailments Amount							24,721.27
	Total Prepayment Amount							7,159,316.29

	*Cumulative*
	Number of Paid in Full Loans							49
	Number of Repurchased Loans							1
	Total Number of Loans Prepaid in Full							50

	Paid in Full Balance							26,976,545.47
	Repurchased Loans Balance							62,155.34
	Curtailments Amount							515,575.63
	Total Prepayment Amount							27,554,276.44

SPACE INTENTIONALLY LEFT BLANK


Total Prepayments by Groups (in thousands of dollars)					Total Prepayments (in thousands of dollars)


				Page 17 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Prepayment Report for September 25, 2002 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENT RATES								TOTAL

	SMM							2.36%
	3 Months Avg SMM							2.20%
	12 Months Avg SMM
	Avg SMM Since Cut-off							1.47%

	CPR							24.93%
	3 Months Avg CPR							23.44%
	12 Months Avg CPR
	Avg CPR Since Cut-off							16.29%

	PSA							1962.69%
	3 Months Avg PSA Approximation							2187.84%
	12 Months Avg PSA Approximation
	Avg PSA Since Cut-off Approximation							2105.12%







CPR by Groups					Total CPR


PSA by Groups					Total PSA


				Page 18 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Prepayment Report for September 25, 2002 Distribution


	Prepayment Report - Voluntary Prepayments




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/(0.02*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 2002 Deutsche Bank


	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Prepayment Detail Report for September 25, 2002 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution


SUMMARY						LOAN GROUP

Total Loan Count = 16						Loan Group 1 = Group
Total Original Principal Balance = 7,185,790.00
Total Prepayment Amount = 7,134,595.02


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

1352775 1			370,000.00	368,773.35	Aug-21-02	8.125%	NJ - 71.15%	Paid Off - 360	Feb-14-02
1381996 1			338,540.00	337,349.82	Aug-02-02	8.750%	NJ - 79.66%	Paid Off - 360	Jan-22-02
1422582 1			368,000.00	364,720.71	Aug-02-02	7.750%	CA - 80.00%	Paid Off - 360	Jan-02-02
1442298 1			550,000.00	547,386.48	Aug-01-02	7.250%	UT - 55.00%	Paid Off - 360	Apr-27-01
1443629 1			551,000.00	548,292.82	Aug-30-02	7.875%	CA - 67.44%	Paid Off - 360	Jan-03-02
1445187 1			304,000.00	302,723.96	Aug-29-02	7.875%	CA - 80.00%	Paid Off - 360	Jan-24-02
1453914 1			400,000.00	398,047.71	Aug-13-02	7.250%	CA - 80.00%	Paid Off - 360	Jan-28-02
1462572 1			650,000.00	648,003.05	Aug-14-02	8.500%	CO - 63.11%	Paid Off - 360	Feb-20-02
1463211 1			306,000.00	297,540.91	Aug-05-02	7.500%	CA - 90.00%	Paid Off - 360	Feb-15-02
1467880 1			410,000.00	407,194.91	Aug-26-02	7.000%	CA - 47.13%	Paid Off - 360	Feb-22-02
1468418 1			581,000.00	578,306.37	Aug-28-02	7.375%	CA - 72.63%	Paid Off - 360	Feb-15-01
1472897 1			495,000.00	493,274.24	Aug-29-02	7.875%	NY - 79.84%	Paid Off - 360	Mar-01-02
1477192 1			532,000.00	529,520.50	Aug-30-02	7.500%	CA - 70.00%	Paid Off - 360	Aug-30-01
1477346 1			633,750.00	631,752.75	Aug-15-02	8.375%	CA - 70.81%	Paid Off - 360	Feb-15-02
1483359 1			344,000.00	342,707.44	Aug-30-02	7.500%	HI - 80.00%	Paid Off - 360	Feb-22-02
1502898 1			352,500.00	339,000.00	Aug-06-02	8.500%	AZ - 75.00%	Paid Off - 360	Mar-01-02


					Page 20 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Realized Loss Report for September 25, 2002 Distribution


	Realized Loss Report - Collateral


COLLATERAL REALIZED LOSSES								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 losses may include adjustments to loans liquidated in prior periods.

SPACE INTENTIONALLY LEFT BLANK


							3 Months Moving Average


Collateral Loss Severity Approximation by Groups					Collateral Loss Severity Approximation


				Page 21 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Realized Loss Report for September 25, 2002 Distribution


	Realized Loss Report - Collateral


DEFAULT SPEEDS								TOTAL

	MDR							0.00%
	3 Months Avg MDR							0.00%
	12 Months Avg MDR
	Avg MDR Since Cut-off							0.00%

	CDR							0.00%
	3 Months Avg CDR							0.00%
	12 Months Avg CDR
	Avg CDR Since Cut-off							0.00%

	SDA							0.00%
	3 Months Avg SDA Approximation							0.00%
	12 Months Avg SDA Approximation
	Avg SDA Since Cut-off Approximation							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



CDR by Groups					Total CDR


SDA by Groups					Total SDA


				Page 22 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Realized Loss Report for September 25, 2002 Distribution


	Realized Loss Report - Collateral




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 2002 Deutsche Bank


	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Realized Loss Detail Report for September 25, 2002 Distribution


	Realized Loss Detail Report - Loans Liquidated During Current Distribution


SUMMARY						LOAN GROUP

Total Loan Count = 0						Loan Group 1 = Group
Total Original Principal Balance = 0.00
Total Prior Principal Balance = 0.00
Total Realized Loss Amount = 0.00
Total Net Liquidation Proceeds = 0.00


Loan Number			Original	Prior		Current	State &
&		Loan	Principal	Principal	Realized	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Balance	Loss/(Gain)	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK


					Page 24 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Triggers, Adj. Rate Cert. and Miscellaneous Report for September 25, 2002 Distribution


	Triggers, Adj. Rate Cert. and Miscellaneous Report


TRIGGER EVENTS								TOTAL

	Has a Stepdown Date occurred?							No

	Is there a Trigger Event in effect?							No

	Trigger Event exists after Stepdown Date
	if either (A) or (B) is true
	(A) Quotient of (x) over (y) > Trigger Event Percentage
	(x) 60+ Day Delq							0.00
	(y) Stated Principal Balance (incl Pre_Funding Amount)							296,009,198.42
	*Quotient of (x) over (y)*							0.0000%
	Trigger Event Percentage							0.0000%
	(B) On or after April, 2005, Realized Losses > 10% of the sum of (a) and (b)
	10% of the sum of (a) and (b)
	Cummulative Realized Losses							0.00
	10% of the sum of (a) and (b)							23,099,980.00
	(a) (1) minus (2)							230,999,800.00
	(1) Class Certificate Balance of the Offered Certificates then outstanding							303,403,071.93
	(2) Class Certificate Balance of the Offered Certificate with the highest payment priority							72,403,271.93
	(b) the Overcollateralized Amount							0.00


ADJUSTABLE RATE CERTIFICATE INFORMATION								TOTAL
SPACE INTENTIONALLY LEFT BLANK


ADDITIONAL INFORMATION								TOTAL


				Page 25 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Other Related Information for September 25, 2002 Distribution


	Other Related Information


ADDITIONAL INFORMATION								TOTAL

	Scheduled Payments on Outstanding Mortgage Loans
	Current Due Date							2,135,574.36
	Prior Due Date							2,188,698.41
	2nd Prior Due Date							2,230,581.76
	3rd Prior Due Date							2,257,842.94
	4th Prior Due Date							2,283,532.14
	5th Prior Due Date							2,207,367.69
	6th Prior Due Date							0.00
	7th Prior Due Date							0.00
	8th Prior Due Date							0.00
	9th Prior Due Date							0.00
	10th Prior Due Date							0.00
	11th Prior Due Date							0.00

	Scheduled Payments on 60+ Day Delinquent Loans
	Current Due Date							50,868.59
	Prior Due Date							50,092.20
	2nd Prior Due Date							33,360.03
	3rd Prior Due Date							34,790.87
	4th Prior Due Date							18,161.35
	5th Prior Due Date							0.00
	6th Prior Due Date							0.00
	7th Prior Due Date							0.00
	8th Prior Due Date							0.00
	9th Prior Due Date							0.00
	10th Prior Due Date							0.00
	11th Prior Due Date							0.00


				Page 26 of 27				© COPYRIGHT 2002 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2002-A4
	Mortgage Pass-Through Certificates

	Additional Certificate Report for September 25, 2002 Distribution


	Additional Certificate Report


	CLASS						Net WAC & LIBOR Shortfall Paid	Net PPIS & Other Int. Shortfalls

	A-1						0.00	0.00
	A-2						0.00	0.00
	A-3						0.00	0.00
	A-4						0.00	0.00
	A-5						0.00	0.00
	A-IO						0.00	0.00
	M-1						0.00	0.00
	M-2						0.00	0.00
	B						0.00	0.00
	OC						0.00	0.00
	A-R						0.00	0.00


				Page 27 of 27				© COPYRIGHT 2002 Deutsche Bank

INDYMAC MBS INC RESIDENTIAL ASSET SECURITIZATION TR 2002-A4 8-K/A