Friday, February 27, 2015
Thursday, February 26, 2015
Koreasat 2
1996-003A
Koreasat 2 was launched by Delta while the STS-72 astronauts were preparing to release the OAST-Flyer satellite. It was a Series 3000 satellite built at the LMAS East Windsor, NJ plant. It is also known as Mugunghwa 2. Koreasat 2 is 2.1 x 2.3 x 3.4m in size with a 15.5m span. Launch mass is 1459 kg, on orbit 833 kg, dry mass 641 kg. location is 116E.
In Jul 2009, ABS bought Koreasat 2 from KT and renamed it ABS-1A.
| Koreasat 2 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1996 Jan 14 | 1110:00 | Launch by Delta 7925 (Delta 231) | CC LC17B |
| Az 93 deg | |||
| 1111 | GEM x 3 ignite (T+1:06) | ||
| 1111 | GEM x 6 sep (T+1:06, alt 18 km) | ||
| 1112 | GEM x 2 sep (T+2:11, alt 53 km) | ||
| 1114 | Stage 1 MECO (T+4:20) | ||
| 1114 | Stage 1 sep (T+4:30) | ||
| 1114 | Stage 2 burn SEIG-1 (T+4:34) | ||
| 1114 | Fairing sep (T+4:58) | ||
| 1120:00 | Stage 2 SECO-1 | 170? x 260? x 28? | |
| 1134:49? | T+24:49s Delta burn SEIG-2 43s? | ||
| 1135:33 | Delta burn SECO-2 | 162? x 1366? x 28? | |
| 1221:13? | Stage 2 burn SEIG-3 (T+1:11:13s) | 185? x 1339? x 28? | |
| 1221:54? | Stage 2 SECO-3 (T+1:11:54s) | 1279? x 1343? x 28? | |
| 1222? | Delta sep | ||
| 1223:24? | PAM-D burn 88s | 1270? x 1351? x 28? | |
| 1224:52? | TECO | ||
| 1226:44? | T+1:17:00? PAM-D sep | 655.56 1369 x 35869 x 21.0 | |
| 1245s | Delta depletion | 103.54 385 x 1467 x 25.3 (Delta) | |
| 1996 Jan 14 | 646.52 1357 x 35420 x 21.0 | ||
| 1996 Jan 16 | 2330? | Star 30 AKM burn over 173E | |
| 1996 Jan 16 | 1435.89 35309 x 36256 x 0.56 GEO 160E | ||
| 1996 Jan 17 | 0140 | 1439.53 35409 x 36299 x 0.54 | |
| 1996 Jan 17 | 0950 | 1442.72 35493 x 36339 x 0.26 | |
| 1996 Jan 21 | 0950 | 1448.60 35732 x 36331 x 0.24 | |
| 1996 Jan 29 | 1048 | 1444.36 35792 x 36015 x 0.13 | |
| 1996 Jan 30 | 0615 | 1444.07 35767 x 36117 x 0.14 | |
| 1996 Feb 1 | 1215 | 1439.76 35776 x 35941 x 0.13 | |
| 1996 Feb 4 | 1215 | 1437.13 35771 x 35843 x 0.09 | |
| 1996 Feb 7 | 1019 | 1436.67 35777 x 35819 x 0.08 GEO 116E+0.15W | |
| 1996 Mar 9 | 1436.08 35776 x 35796 x 0.0 GEO 116.0E | ||
| 1999 Oct 15 | 1436.14 35782 x 35792 x 0.4 GEO 116.0E | ||
| 2000 Mar 24 | 1436.13 35779 x 35795 x 0.6 GEO 115.9E | ||
| 2000 Apr 8? | Orbit raise | ||
| 2000 Apr 18 | 1439.95 35856 x 35867 x 0.8 GEO 104.4E+0.98W | ||
| 2000 May 10 | mv out | 1440.05 35859 x 35868 x 0.9 GEO 82.7E+1.0W | |
| 2000 Jul 5 | Move in at 45E (possibly a mis-id?) | ||
| 2000 Jul 11 | 1436.07 35774 x 35797 x 1.0 GEO 44.9E | ||
| 2000 Oct 17 | Move out from 46E | ||
| 2000 Oct 21 | 1436.13 35784 x 35790 x 0.0 GEO 113.0E | ||
| 2001 Apr 6 | 1436.29 35780 x 35800 x 0.0 GEO 112.5E | ||
| 2002 Jun 1 | 1436.06 35774 x 35796 x 0.02 GEO 112.9E | ||
| 2006 Jan 2 | 1436.13 35784 x 35790 x 0.0 GEO 113.0E | ||
| 2006 Oct 31 | 1436.08 35770 x 35802 x 0.02 GEO 113.1E | ||
| 2006 Nov 17 | Move in at 114E | ||
| 2007 Jan 18 | 1436.20 35779 x 35798 x 0.1 GEO 114.1E | ||
| 2007 Jan | Moved to 116.5E | ||
| 2007 Feb 15 | 1436.20 35782 x 35794 x 0.2 GEO 116.4E | ||
| 2009 Jul 12 | 1436.12 35783 x 35790 x 2.4 GEO 116.5E | ||
| 2009 Jul | Bought by Asia Broadcast Satellite as ABS-1A | ||
| 2009 Aug 10 | Move out | 1436.15 35782 x 35793 x 2.5 GEO 116.5E | |
| 2009 Sep 22 | Move in | 1436.36 35785 x 35798 x 2.6 GEO 74.9E | |
| 2014 Jan 9 | Move out | 1436.10 35780 x 35793 x 6.1 GEO 75.0E | |
| 2014 Jan 19 | Move in | 1436.32 35782 x 35799 x 6.1 GEO 78.0E | |
| 2015 Jan 20 | 1436.11 35807 x 35843 x 6.8 GEO 78.0E | ||
Friday, February 20, 2015
Chinasat 6B
2007-031A
Chinasat 6B is a Thales Alenia Space satellite using the Spacebus 4000C2. Launch mass is 4600 kg.
| ZX-6B | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 2007 Jul 4 | 1208 | Launch by CZ-3B | Xichang |
| 1234 | T+26m Stage 3 sep | 920.93 233 x 49721 x 24.2 | |
| 2007 Jul 15 | 1441.33 35789 x 35988 x 0.1 GEO 116.8E | ||
| 2007 Jul 18 | 1436.08 35782 x 35790 x 0.05 GEO 115.5E | ||
| 2014 Oct 6 | 1436.07 35773 x 35798 x 0.01 GEO 115.6E | ||
Thursday, February 19, 2015
USA-171
2003-041A
Titan B-36/Centaur TC-20, with an 86' fairing, launched USA 171 on 2003 Sep 9. The azimuth implied a geostationary mission and the satellite is believed to be an Advanced Orion. The UN-registered orbit is typical of geostationary transfer. TC-20 was the last use of the RL10A-3-3A engines.
| USA 171 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 2003 Sep 9 | 0429 | Launch by Titan 4B Centaur | |
| T+2:11 St 1 burn | |||
| T+2:26 SRMU sep | |||
| T+3:30 Fairing sep | |||
| T+5:23 Titan St 1 sep | |||
| T+9:19 SECO | |||
| T+9:28 Titan St 2 sep | |||
| 0438 | T+9:49 MES-1 | ||
| 0441 | T+12:00 MECO-1 | 165 x 180? x 28.5? | |
| 0450s | T+21:52 MES-2 | ||
| 0456s | T+27:05 MECO-2 | 630.2 165 x 35778 x 26.7 (UN) | |
| 0457? | MES-2 (based on model TLE) | ||
| 0503? | MECO-2 | 630.2 165 x 35778 x 26.7 (UN) | |
| 1008s | T+5:39:00? MES-3 | ||
| 1010s | T+5:41:00? MECO-3 | ||
| 1018s | T+5:49 TC-20 sep | ||
| 2008 Aug 11 | 1436.12 35589 x 35984 x 3.2 GEO 95.4E | ||
| 2009 Jul 2 | 1436.12 35626 x 35947 x 3.5 GEO 95.5E | ||
| 2011 Aug 12 | 1435.98 35579 x 35989 x 5.0 GEO 90.0E | ||
Monday, February 16, 2015
Saturday, February 14, 2015
SOHO
1995-065A
The Solar and Heliospheric Observatory was launched on 1995 Dec 2. The satellite was built by Matra Marconi Space for ESA, which managed the SOHO project in collaboration with NASA. It is 3.65m long, 3.65m wide and has a mass of 1864 kg (ESA web page) or 1875 kg (AWST). SOHO, together with CLUSTER, formed part of the Cornerstone 1 (CS1) mission, the first element of the Horizon 2000 program to be launched.
SOHO was the second L1 mission and entered a counterclockwise (Class 2) halo orbit of radius 600000 km around the Earth-Sun L1 point 1.5 Mkm from the Earth. (ISEE had used a clockwise, Class 1, orbit).
In Jun 1998, SOHO went out of control during a momentum management maneuver. Errors in commanding the satellite meant that the emergency sun re-acquisition procedure failed and contact was lost. Goldstone radar detected the spacecraft a few weeks later, and intermittent contact was restored on Aug 4.
145 kg of fuel remained in mid-1999; original loading was 240 kg meaning the dry mass is 1624 kg. A later report gave 1863 kg full with 251 kg prop.
| SOHO | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1995 Dec 2 | 0808:01 | Launch by Atlas IIAS Centaur (AC-121) | CC LC36B |
| 0808:01 | Atlas and first pair SRB on | ||
| 0808:57 | First pair SRB burnout | ||
| 0808:59 | Second pair SRB on | ||
| 0809:09 | First pair sep | ||
| 0809:56 | Second pair burnout and sep | ||
| 0810:43 | BECO | ||
| 0810:47 | Booster jettison | ||
| 0811:33 | Fairing sep | ||
| 0813:07 | SECO | ||
| 0813:09 | Atlas sep | ||
| 0813:26 | Centaur MES1 | ||
| 0817:49 | Centaur MECO1 | 175 x 183 x 28.8 | |
| 0932:44 | Centaur MES1, 1:57 over E Pac. | ||
| 0934:42 | Centaur MECO1 | ||
| 1009:42 | Centaur sep | 177 x 1115746 x 29.72 | |
| Centaur sep burn | |||
| 1030s | Centaur blowdown | ||
| 2310 | Pass EL1:4 | 174 x 1110172 x 29.72 | |
| 1995 Dec 3 | 2300s | TCM-1, 243000 km range | |
| 1995 Dec 15 | 1 Mkm range | 3500 x 1290200 x 29.2 | |
| 1995 Dec 22 | s | TCM-2 | 9180 x 1345592 x 29.5 |
| 1995 Dec 23 | 0750 | GSEx above 1.2Mkm, L1 region | |
| 1996 Feb 14 | 1700 | Halo orbit insertion | 238000 x 666672 x 54.4 |
| 1996 May 23 | SK-1 0.3k/s | ||
| 1996 Aug 1 | 290000 x 1568000 x 22.7 | ||
| 1996 Sep 1 | 881024 x 1326562 x 23.9 | ||
| 1996 Sep 11 | SK-02 0.5m/s | ||
| 1997 Jan 14 | SK-03 0.04m/s | ||
| 1997 Apr 11 | SK-04 0.19 m/s | ||
| 1997 Sep 4 | SK-05 1.9m/s | ||
| 1997 Nov 29 | SK-06 0.04m/s | ||
| 1997 Dec 19 | SK-07 0.40m/s | ||
| 1998 Apr 17 | SK-08 1.4m/s | ||
| 1998 Jun 24 | Momentum management mvr | ||
| Safemode | |||
| 2100 | Emergency sun re-acq | ||
| 2330 | Safemode | ||
| Emergency sun re-acq | |||
| 1998 Jun 25 | 0340 | Safemode, contact lost | |
| Net dV 1.42 cm/s | |||
| 1998 Jul | Contact by Arecibo | ||
| 1998 Aug 3 | DSN contact, Recover control | ||
| 1998 Sep 16 | Operations resume | ||
| 1998 Sep 25 | RM-01 6.2m/s | ||
| 1998 Oct 16 | RM-02 1.9m/s | ||
| 1998 Nov 13 | RM-03 2.3m/s | ||
| 1998 Dec 21 | Safemode, gyro failed | ||
| 1999 Jan | Observations resume | ||
| 1999 Jan 7 | RM-04 8.1m/s | ||
| 1999 Jan 10 | RM-05 8.6m/s | ||
| 1999 Jan 26 | RM-06 4.0m/s | ||
| 1999 Feb 1 | RM-07 0.3m/s | ||
| 1999 Feb 14 | Safemode again | ||
| 1999 Feb 18 | Out of safemode | ||
| 1999 Mar 5 | RM-08 0.1m/s | ||
| 1999 Jun 17 | SK-09 0.5m/s | ||
| 2013 Jan | UVCS retired | ||
Payload:
- Service module with hydrazine thrusters
- CDS (Coronal Diagnostic Spectrometer) o CDS from Rutherford Appleton Laboratory, United Kingdom. Effective geometric diameter about 20 cm?; Wolter II telescope 150-800A
- CELIAS (Charge, Element, and Isotope Analysis System) o CELIAS from the University of Bern, in Switzerland.
- COSTEP (Comprehensive Suprathermal and Energetic Particle Analyzer) o COSTEP from the University of Kiel, Germany (in German).
- EIT (Extreme ultraviolet Imaging Telescope) o EIT from the NASA/Goddard Space Flight Center, USA. 12 cm tel.
- ERNE (Energetic and Relativistic Nuclei and Electron experiment) o ERNE from the University of Turku, in Finland.
- GOLF (Global Oscillations at Low Frequencies) o GOLF from the Institut d'Astrophysique Spatiale, France.
- LASCO (Large Angle and Spectrometric Coronagraph) o LASCO from the Naval Research Laboratory, USA. o LASCO from the Max Planck Institute for Solar System Research, Germany.
- MDI/SOI (Michelson Doppler Imager/Solar Oscillations Investigation) o MDI/SOI from Stanford University, USA.
- SUMER (Solar Ultraviolet Measurements of Emitted Radiation) o SUMER from the Max Planck Institute for Solar System Research, Germany. ; 13 cm telescope-spectrograph
- UVCS (Ultraviolet Coronagraph Spectrometer) o UVCS from Harvard-Smithsonian Center for Astrophysics, USA. 7 cm mirror in spectrograph
Monday, February 9, 2015
Thursday, February 5, 2015
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