Corona 128

 1968-078A

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KH-4A Mission 1048 was launched by Thorad Agena D from Vandenberg on 1968 Sep 18. Both SRVs were recovered but the forward camera failed on mission 1048-2 during pass 181D. The mission carried at least 7 DMU rockets, possibly of a modified design; the first was used as planned to achieve the nominal orbit; the next three were used to maintain orbital height; and the last three were fired retrograde and used to test out the Thiokol motors. DMU 6 and 7 were 3000 lb-s; the remaindeer were 2000 lb-s versions.

KH-4A Mission 1048
Date	Time	Event	Orbit
1968 Sep 18	2132	Launch by LTTAT Agena D	V
	2131	Launch (PerfER)
	2133	Castor sep
	2135	Thor sep
	2136	Agena burn
	2140	Agena MECO
	2306?	Subsatellite ejected
1968 Sep 18	2059		90.11 166 x 393 x 83.0
		DMU burn 1 rev 4
1968 Sep 19	1632		90.16 175 x 389 x 83.0
1968 Sep 19			90.12 167 x 393 x 83.0 (RAE)
1968 Sep 20	0604		90.17 182 x 383 x 83.0
1968 Sep 22		DMU burn 2 rev 56
1968 Sep 25	0023		90.19 177 x 390 x 83.0
1968 Sep 27	1532		90.10 176 x 382 x 83.0
1968 Sep 27		DMU burn 3 rev 136
	2331?	SRV-1 ejected
1968 Sep 28	0010	SRV-1 recovered rev 145; 23 38N 169 07W
	0015	SRV-1 recovered (PerfR) 23 38 N 169 07 W
1968 Sep 30			90.1 178 x 391 x 83.0 (SSR)
1968 Oct 2	2224?	SRV-2 ejected rev 224
1968 Oct 2	2305	SRV-2 recovered 17 34N 160 49W
1968 Oct 2	2330?	DMU burn 4 rev 225
1968 Oct 3		DMU burn 5 rev 229, retro 6m/s
1968 Oct 3	0951		89.49 168 x 331 x 83.1
		DMU burn 6 rev 233, retro 9m/s
1968 Oct 3		DMU burn 7 rev 238, retro 9m/s
1968 Oct 5	2258		88.91 167 x 274 x 83.0
1968 Oct 8		Reentered