DFH-15

 1984-035A

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The STTW satellite (Experimental Synchronous Communications Satellite) was China's first geostationary satellite. The satellite was a DFH-2 class satellite, 2.1m dia and 1.6m high, with a mass of 920 kg. DFH-2 was spin-stabilized with a despun horn antenna.

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STTW
Date	Time	Event	Orbit
1984 Apr 8	1120	Launch by CZ-3	XSC
		T+2:06 St 1 MECO
		T+2:07 St 2 burn
		T+4:15 St 2 MECO
		T+4:19 Fairing
		T+4:22 St 2 VECO
		T+4:23 Stage 3 burn
	1131	T+11:08 MECO-1
	1135	Stage 3 MES-2
	1140?	Stage 3 MECO
1984 Apr 8	1141?	Stage 3 sep	633.21 401 x 35694 x 31.0
1984 Apr 10	0041	Apogee burn	1431.94 35683 x 35727 x 0.9 GEO 142.4E+1.0E
1984 Apr 10			GEO 142E dr
1984 Apr 12			1444.55 35520 x 36383 x 0.7 GEO 137.3E+2.1W
1984 Apr 16		On station 125E
1984 Apr 26			1436.13 35782 x 35791 x 0.6 GEO 125.1E
1984 May			GEO 125E
1985 Jun 21			1435.92 35772 x 35794 x 1.5 GEO 125.1E
1986 Oct			GEO 125E
1987 Mar 19			1436.36 35788 x 35796 x 1.6 GEO 124.1E
1988 Jan 21			1436.38 35788 x 35795 x 1.6 GEO 124.1E
1988 Jun 26			1436.49 35769 x 35819 x 1.9 GEO 124.1E
1988 Jun 28		mv out	1436.88 35784 x 35818 x 1.3 GEO 123.7E+0.2W
1988 Jul 16			1437.02 35785 x 35824 x 1.3 GEO 119.9E+0.2W

DFH-18

 1986-010A

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The Feb 1986 launch carried the Shiyong Tongbu Tongxin Weixing (Operational Synchronous Communications Satellite), the second DFH-2 satellite. (DFH is an abbreviation for Dong Fang Hong, the East Is Red). 

STTW 1
Date	Time	Event	Orbit
1986 Feb 1	1237	Launch by CZ-3	XSC
		T+2:06 St 1 MECO
		T+2:07 St 2 burn
		T+4:15 St 2 MECO
		T+4:19 Fairing
		T+4:22 St 2 VECO
		T+4:23 Stage 3 burn
	1248	T+11:08 MECO-1
	1252?	Stage 3 MES-2
	1257?	Stage 3 MECO
			633.89 420 x 35711 x 31.0
1986 Feb 3	0207?	Apogee burn
1986 Feb 3			1403.55 34411 x 35882 x 0.1 GEO 142.5E+8.3E
1986 Feb 4			1450.09 35895 x 36224 x 0.2 GEO 148.9E+3.5W
1986 Feb 18		mv in	1436.02 35779 x 35790 x 0.1 GEO 102.9E
1986 Feb 20		On station 103E
1987 Mar 12			1435.99 35782 x 35786 x 0.1 GEO 103.0E
1988 Oct 10			1435.93 35781 x 35785 x 0.1 GEO 103.2E
1989 Sep 20			1436.35 35783 x 35799 x 1.0 GEO 103.3E

Aviation Week: February 24,1997

 https://welib.org/md5/84974f21cc50503076200e2783dc69b6

SEDS-2

 1994-016B

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The second SEDS mission was launched at 0340 on 1994 Mar 10 aboard Delta 226. The tether unreeled for 1 h 46 min and reached a vertical extent of 19.8 km. Data was returned for 10 hours.

This time the tether was left attached to Delta 226 in its 347 x 352 km x 32.3 deg orbit. The tether oscillated back and forth relative to the vertical. On Mar 13 the tether was severed by space debris at a length of 11 km; the end mass and 8-9 km of the tether reentered within hours. The tether was cut several times during its lifetime. The orbit of the Delta/tether combination decayed rapidly and by May 8 at 1200 it was in a 140 x 154 km x 32.3 deg orbit, reentering shortly afterwards.

SEDS-2
Date	Time	Event	Orbit
1994 Mar 10	0340:01	Launch by Delta 7925	CC LC17
	0341:04	SRM 1-6 off
	0341:06	SRM 7-9 on
	0341:07	SRM 1-6 sep
	0342:10	SRM 7-9 off
	0342:13	SRM sep
	0344:21	MECO
	0344:29	Stage 1 sep
	0344:35	SES-1
	0344:45	Fairing
	0350:29	Delta SECO-1	185 x 185 ?
	0359:52	SES-2 19s
	0400:11	SECO-2
	0401:03?	Stage 2/3 sep
	0401:41	TES
	0403:08	TECO
	0405	Stage 3 sep
		SES-3
		SECO-3 depletion	347 x 352 x 32.3
	0439		91.54 347 x 352 x 32.35
	0445:57	Tether deploy
	0632	Tether deploy complete after 1h46m
	1440?	T+10h end of tx
1994 Mar 13	2000?	T+3.7d Tether cut?
1994 Mar 15	0200?	Tether sep rev 74
1994 Mar 15			91.39 342 x 343 x 32.4

Kosmos 722

  1975-021A

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Several debris objects were cataloged on Apr 8, the day before recovery.

Kosmos-722
Date	Time	Event	Orbit
1975 Mar 27	0800:00	Launch by Soyuz-U	Baikonur
	0804	Blok-I burn
	0808	Blok-I sep
1975 Mar 27			89.91 202 x 337 x 71.4
1975 Mar 28			89.91 203 x 336 x 71.4
1975 Mar 28		Lower perigee	89.60 173 x 335 x 71.4
1975 Apr 9			89.36 171 x 314 x 71.4
1975 Apr 9
	0443?	Deorbit
	0454?	PO sep
	0458?	Entry
	0515?	Landed

Kosmos 1887

 1987-083A

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Two rhesus macaques flew on Bion 8. They were called Drema and Yeroshka. The monkeys exhibited mostly good health throughout the flight.

Bion 8
Date	Time	Event	Orbit
1987 Sep 29	1250	Launch by Soyuz-U	PL
	1252	Blok-BVGD sep
	1254	Blok-I burn
	1259	Blok-I sep
1987 Oct 3			90.50 216 x 383 x 62.8
1987 Oct 6			90.52 216 x 384 x 62.8
1987 Oct 11			90.40 215 x 373 x 62.8
1987 Oct 12
	0328?	Deorbit
	0330?	PO sep
	0347?	Entry
	0401?	Landed