Eutelsat 202

 1991-003B

---

Eutelsat II F-2 was a Spacebus 2000 satellite with 16 Ku-band transponders, to provide telephone, telex, data, business services and TV broadcast as well as the Satellite Multiservice System with 2-way VSAT traffic. The spacecraft replaced Eutelsat I F-5.

Eutelsat II F-2
Date	Time	Event	Orbit
1991 Jan 15	2310:49	Launch by Ariane 44L	CSG ELA2
		T+2:31 PAL sep
		T+3:35 St 1 sep
		T+3:38 St 2 MES
		T+4:25 Short fairing 01 sep
		T+5:46 St 2 sep
	2316:39	T+5:50 St 3 MES
	2328:40	T+17:51 St 3 MECO
	2330:01	T+19:12 Italsat 1 sep
	2331:31	T+20:42 Spelda 10 sep
	2333:47	T+22:58 Eut F2 sep
1991 Jan 16			631.69 224 x 35794 x 7.0
1991 Jan 17	1230?	LAM-1	765.23 6883 x 35787 x 3.5
1991 Jan 18	1340?	LAM-2	1309.48 30694 x 35845 x 0.4
1991 Jan 20	1000?	LAM-3	1431.85 35564 x 35841 x 0.1 GEO 15.2E+1.0E
1991 Jan 28			1436.27 35782 x 35797 x 0.1 GEO 21.1E
1991 Feb 19		mv in	1436.03 35773 x 35796 x 0.1 GEO 21.0E
1991 Mar 12		Begin commercial ops	GEO 10E
1991 Mar 26		(Drift to 23E?)
1991 Apr 10			1436.05 35745 x 35826 x 0.0 GEO 23.4E
1991 Oct 6			1436.08 35745 x 35827 x 0.0 GEO 23.5E
1991 Nov		mv out
1992 Jan		mv in
1992 Mar 18			1436.04 35744 x 35826 x 0.5 GEO 10.2E
1992 Jun 21			1436.04 35744 x 35826 x 0.0 GEO 9.9E
1995 Aug 21			1436.08 35770 x 35802 x 0.0 GEO 10.0E
1998 Aug 8			1436.10 35774 x 35798 x 0.0 GEO 10.0E
1999 Jun 16			1436.04 35764 x 35806 x 0.1 GEO 10.0E
1999 Jun 28		mv out
1999 Aug 5		mv in	1436.10 35783 x 35790 x 0.0 GEO 12.5W
2000 Jun 13			1436.10 35759 x 35813 x 0.4 GEO 12.6W
2002 Jun 9			1436.11 35757 x 35816 x 2.1 GEO 12.6W
2002 Jul 25		mv out
2002 Nov		mv in 48.5E
2003 Aug 31			1436.10 35764 x 35809 x 3.2 GEO 48.5E

STS-97 (Endeavour)

 2000-078A

---

The STS-97 flight took the P6 truss to the International Space Station. The P6 truss was easily latched to Z1 as EVA astronauts Tanner and Noriega guided it in, but during deploy of the solar arrays, a software problem delayed the effort. Solar wing 2B (the starboard wing) and 4B (the port wing) were to be deployed. 2B was deployed and tensioning wires came loose, so the port wing deploy was delayed and done slowly the next day.

On the second EVA P6 was wired up to the station. It was decided to add a new task to EVA-3: repairing 2B's tensioning wires. This was done quickly, and the original taks of installing the Floating Potential Probe experiment was done. This measures whether the PCU's are successful in bleeding off excess charge from the arrays; there was some fear that EVA astronauts might be hit by a bolt of lightning from the arrays. The FPPE was installed on top of P6 between the SAWs. The thermal cover of the FPPE has an evergreen drawn on it as a nod to the tradition of topping out a tall terrestrial construction project.

STS-97 uses RMS 303. Launch mass 120740 kg; landing mass 89756 kg. Mass at MECO 116264 kg, after OMS-2 114777 kg. A new GPS SIGI DTO experiment was carried. 641 kg of internal transfer, possibly including the 40 kg FPPE (of which 23 kg was the actual removable experiment).

STS-97
Date	Time	Event	Orbit
2000 Oct	Tow to VAB/1
2000 Oct 27		Mate to ET
2000 Oct 31		Roll to LC39B
2000 Dec 1	0306:01	Launch	KSC LC39B
	0308:04	SRB sep
	0308:15	OMS assist
	0309:57	OMS assist C/O
	0314:27	MECO	74 x 325 km
	0314:46	ET sep
	0349:15	T+0:44 OMS-2 1:18 36m/s
	0350:34	OMS-2 CO	205 x 322 km x 51.6
	0430?	ET-105 reentry
	0436:38	PLBD open
	0649:17	OMS 3(R) 10.6s 3m/s
	0704		89.79 205 x 322 x 51.6
	1842:39	RCS NPC +X 20s 1.2m/s
2000 Dec 1	2021	RMS checkout
	2130	RMS cradle
2000 Dec 2	0323:45	OMS 4 NC3 52s 24m/s
	0324:37	OMS 4 CO
	0600	90.66 238 x 374 x 51.6
	1600:09	OMS 5 burn 1:20 dv=38m/s
	1635:01	NCC 4s 0.3m/s
	1732:44	OMS 6(L) TI burn, range 15 km 2m/s 8s
	1732:52	OMS 6 CO
	1752:43	MC1
	1754	Station orient, PMA-3 to nadir
	1812:52	RCS planar null
	1829:36	MC2
	1846:36	MC3
	1856:36	MC4 7s
	1859	Manual control 2 km
	1908	On R-bar
	1913	150m range
	1917	Rotate to align
	1922	100m range
	1924	85m range
	1927	70m
	1952	Resume approach at 30m
	1959:40	Docking PMA-3	92.09 374 x 379 x 51.6
	2011:51	Hard dock
		RMS uncradle
	2216:57	RMS grapple P6
	2227	P6 unlatched
	2229	P6 unberthed
	2252	HO to PMA-3
	2320	P6 in park position
2000 Dec 3	0022	Ingress to PMA-3
	0140	HC to PMA-3
	1545	P6 moving toward Z1
	1614	P6 in premate position 1m from Z1
	1820	Begin depress
	1823	5psi, begin leak check
	1825	Resume depress
	1831	EVA-1 Tanner, Noriega
	1830:47	Depress complete
	1831	EAL HO	92.07 374 x 378 x 51.6
	1835	Battery power
	1840	Egress Tanner
	1845?	Egress Noriega
	1920	EVA crew observe P6 mating
	1932	P6 berthed on Z1
	1940?	P6 manually latched
	2017:25	RMS ungrapple P6
2000 Dec 4	0030	P6 SAW failed to open latches
	0100	Noriega ingress
	0115	Noriega egress
	0123	2B (+X, stbd) array deploy
	0137	Noriega ingress
	0138	2B fully deployed
	0201	TC closed
	0202	HC
	0208:04	Repress (MR)
	0209	Repress
	0414	deploy PVR P6 on +Y side of IEA
	0421	PVR P6 deploy complete
2000 Dec 5	0052	4B (-X, port) array deploy
	0246	4B fully deployed
	1718:25	Depress for EVA-2	92.07 372 x 379 x 51.6
	1719	Hatch open
	1721	Battery power
	1727	Noriega egress (SAFER 7)
	1734	Tanner egress (SAFER 5)
	1740	Working at Z1
	1825	SASA removed from Z1
	1845	Relocated SASA to P6
		Wire up P6
	2030	Prep PMA-2 for move
	2200	Release straps on aft TCS
	2340	Tanner ingress
	2347	Noriega ingress
	2347	TC closed
	2354	HC
	2358:07	Repress; official 6:37:19
		Deploy aft TCS radiator
2000 Dec 7		EVA-3 Tanner, Noriega
	1559	Begin depress	92.05 369 x 380 x 51.6
	1602	Leak check
	1604	Resume depress
	1608:46	Depress (MR)
	1610	HO
	1613	Battery
	1620?	Egress
	1800?	Retension SAWs
	1815?	Install FPP antenna on Unity
	1955?	Install FPPE on P6
	2110?	Ingress
	2119	Hatch closed
	2122:02	Repress 5:14 d; 5:10 NASA
2000 Dec 8	1436	HO to ISS
2000 Dec 9	1551	HC to ISS	92.02 368 x 378 x 51.6
	1913:00	Undock from PMA-3
	1931	Begin flyaround at 120m
	2017	Complete flyaround, at 300 m
	2017	Sep burn
	2026	Range 500m	91.99 365 x 378 x 51.6
2000 Dec 10	0139:56	OMS 7 12s 6.5m/s
	0140:09	OMS 7 CO
2000 Dec 11	1916:08	PLBD closed	91.71 351 x 365 x 51.6
	2157:31	OMS DO 2:42 95m/s at apogee
	2200:12	OMS DO cutoff	88.41 27 x 365 x 51.6
	2232:02	Entry interface 120 km
	2303:23	MGTD RW15 KSC
	2303:35	NGTD
	2304:20	WS
2000 Dec 12	0345	Tow to OPF/2

ACE

 1997-045A

---

The Advanced Composition Explorer (ACE) was a Delta-class Explorer mission to measure energetic particles in near-Earth interplanetary space and study the interstellar medium. It is stationed at the Earth-Sun L1 point. Goals were:

• directly sample solar material, finding solar coronal and photospheric isotopic abundances and cosmic ray isotopic abundances.

• Determine `anomalous cosmic ray' abundances, possibly indicating isotopic composition of the ISM.

• Direct measurements of charge and mass fractionation during acceleration events (solar flares and interplanetary accelerations), and study acceleration timescales.

The spin-stablized spacecraft is based on the AMPTE-CCE bus and is built by APL for GSFC. The octagonal 2.5m long, 1.6m diameter, 752 kg satellite has 4 solar panels and two booms spanning 8.3m. It was launched 1997 Aug by Delta 7920-8. Principal investigator for ACE is E.Stone of CalTech. Total mass is 785 kg including 189 kg of hydrazine. 

The Delta second stage performed a retrograde burn after insertion for disposal in an orbit with short lifetime (Ted Kawamura, Boeing, private comm. 1997 Sep 9.)

ACE entered a clockwise Lissajous orbit around L1.

ACE
Date	Time	Event	Orbit
1997 Aug 25	1439:00	Launch by Delta 7920	CC LC17A
	1440	T+1:03 SRM 1-6 burnout
	1440	T+1:05 SRM 7-9 on
	1440	T+1:06 SRM1-3 sep
	1440	T+1:07 SRM 4-6 sep
	1441	T+2:08 SRM 7-9 burnout
	1441	T+2:11 SRM 7-9 sep
	1443	T+4:23 MECO	-2700 x 185?
	1443	T+4:31 Stage 1 sep
	1443	T+4:36 Stage 2 burn 1
	1443	T+4:41 PLF sep
	1446	T+7:33 SECO-1	185 x 185 x 28.7
	1544	Delta burn 2 T+1:05:06
	1548	SECO-2 alt 233 km, T+1:09:16	177 x 1281969 x 28.7
	1553	Delta sep T+1:14:47
	1620	Evasive burn T+1:41:27
	1620	SECO-3 T+1:41:32
	1627	Depletion burn T+1:48:07
	1627	Depletion cutoff T+1:48:13
		Delta orbit:	174 x 840904 x 28.8 (B)
1997 Aug 26	0000	Range 87740 km	182 x 1258425 x 28.7
	0516	Pass EL1:4
	0533?	Delta pass EL1:4
1997 Aug 26		MCC-1
		MCC-2
1997 Aug 27	0000	Range 266800 km
1997 Sep 7		Engineering burn
1997 Sep 13		OSM-1
1997 Sep 14		OSM-2
1997 Sep 15		OSM-3
1997 Sep 16	0423?	GSEx above 1.2Mkm, enter L1 region
1997 Sep 19		OSM-4
1997 Sep 23		OSM-5
1997 Sep 24		OSM-6
1997 Sep 26?		Delta perigee, reentry?
1997 Oct 2		Trim burn
1997 Dec 9		HOI-1 (total HOI 115m/s)
1997 Dec 10		HOI-2
1997 Dec 11		HOI-3
1997 Dec 12		HOI-4
1997 Dec 19		HOI trim
1998 Jan		In L1 halo orbit
1998 Jan 15		SK-01 0.8m/s
1998 Feb 20		SK-02 3.6m/s
1998 Mar 25		SK-03 2.3m/s
1998 May 1		SK-04 0.2m/s
1998 Jun 5		SK-05 0.2m/s
1998 Jul 21		SK-06 0.3m/s
1998 Sep 3		SK-07 0.3m/s
1998 Nov 11		SK-08 0.4m/s
1999 Jan 14		SK-09 0.7m/s
1999 Apr 9		SK-10 0.5m/s
1999 Jul 2		SK-11 0.5m/s

Payload:

• Propulsion system (10 x 4.5N MR-111 Olin mono hydrazine)

• SWIMS Solar Wind Ion Mass Spectrometer

• SWICS SW Ion Composition Spectrometer

• ULEIS Ultra Low Energy Isotope Spectrometer

• SEPICA Solar Energetic Particle Ionic Charge Analyser

• SIS Solar Isotope Spectrometer

• CRIS Cosmic Ray Isotope Spectrometer

• EPAM Electron Proton and Alpha Monitor

• SWEPAM Solar Wind Electron Proton and Alpha Monitor