Saturday, March 24, 2012

Opera News: January 2012

 https://welib.org/md5/b83307e08505ef825a8620ac0ead507e

Michibiki 1

 2010-045A


QZS-1, Quasi Zenith Satellite System developed for Advanced Space Business Corp, a JAXA/industry consortium to provide enhanced nav and comm services in Japan, with GNSS augmentation service. ASBC shut down in 2007 and was replaced by a government non-profit foundation, SPAC.

Satellite orbit 35786 x 35786 x 45. TTC from Okinawa; sat over 135E.

QZSS in Japanese is Jun Ten Cho. Named 'Michibiki' ('guiding', 'showing the way'). Spacecraft derived from the ETS-8 bus. Mass 4100 kg wet, 1800 kg dry, box + 2 panels. Size 2.9 x 3.1 x 6.2m with 25.3m span.

Japan's first Quasi-Zenith Satellite System craft (Jun tenchou eisei shogou ki,

\uni{ 準天頂衛星システム}{ }
QZSS 1), was launched on Sep 11. QZSS 1 is named 'Michibiki' ('guiding light'). It carries an L-band navigation payload to augment GPS and a C-band payload for communications; the satellite's special inclined geosynchronous orbit will spend time directly overhead Japan, providing a better signal to receivers whose view of GEO satellites on the southern horizon is blocked by tall buildings. The satellite is 4100 kg wet, 1800 kg dry and was built by Mitsubishi Electric (MELCO) at Kamakura. The satellite is controlled by JAXA from a ground station on Okinawa. The H-IIA rocket put QZSS in a roughly 280 x 280 km x 31.8 deg parking orbit at 1129 UTC; after a second burn at 1141 UTC the satellite was deployed into a 280 x 35336 km x 31.8 deg path; the on board engine will circularize the trajectory and increase the inclination.


QZS 
 

DateTimeEventOrbit  

2010 Sep 11 1117:00 Launch by H2A 202  TNSC 
  T+1:33 SRB burnout 45 km 
  T+1:47 SRB sep 54 km  
  T+4:18 PLF sep 150 km 2.6 km/s 
  T+6:42 MECO 228 km  
 1123 T+6:50 St 1 sep 223 km  
 1123 T+6:59 SEIG-1 236 km 5.2 km/s 
 1129 T+12:36 SECO1 288 km 7.7 km/s  280 x 280? x 31.8 
 1141 T+24:43 SEIG-2 256 km 7.7 km/s 
 1144 T+27:36 SECO2 254 km 10.2 km/s  280 x 35336 x 31.8 
 1145 T+28:27 St 2 sep, 275 km , 10.2 km/s 
2010 Sep 12    250 x 36150 x 31.9  
 0302  AEF-1 67 min  6785 x 35969 x 36.6  
2010 Sep 13  
 0426  AEF-2 88 min  1333.21 31528 x 35967 x 40.8  
2010 Sep 14 
 0321  AEF-3 7 min  
2010 Sep 14    1442.80 35869 x 35965 x 41.0 
2010 Sep 16    1521.70 35916 x 38975 x 41.0 
2010 Sep 17    1422.22 32046 x 38982 x 41.0 
2010 Sep 20    1422.69 32065 x 38982 x 41.0 
2010 Sep 27    1436.04 32605 x 38964 x 41.0 
2010 Oct 2    1436.08 32607 x 38964 x 41.0 GSO 120.7E 

Payload:

  • L-band helical array antenna

  • L1-SAIF antenna, QZSS L1 nav signal SBAS PRN 183

  • Laser reflector

  • C-band antenna

Friday, March 23, 2012

ROSAT

 1990-049A


The ROSAT (Rontgensatellit) X-ray observatory, launched in Jun 1990, was similar to NASA's Einstein observatory but with improved spatial and spectral resolution. It carried nested X-ray mirrors which focused radiation onto a PSPC (Position Sensitive Proportional Counter, similar to the Einstein IPC) and an HRI (High Resolution Imager, supplied by the US team that built the similar instrument on Einstein). A separate but coaligned extreme ultraviolet telescope, the Wide Field Camera (WFC), was built by the UK Leicester University group. The mission was operated by MPE in Germany in collaboration with NASA and the UK. The first six months of the mission saw an all sky survey by the PSPC instrument. At the end of the survey, a power failure caused the spacecraft to lose attitude control and accidentally point at the Sun, which severely damaged the PSPC-C instrument then in the focal plane and degraded the WFC. Fortunately a backup PSPC and the HRI were available to support continued operations in the pointed phase, which was opened to astronomers across the world.


ROSAT 
 

DateTimeEventOrbit  

1990 Jun 1  2147:59  Launch by Delta 6920  CC LC17A 
  T+0:55 SRM 1-6 burnout 
  T+1:00 SRM 7-9 burn 
  T+1:02 SRM 1-6 sep 
  T+1:56 SRM 7-9 burnout 
 2149:56  T+2:02 Final 3 Castor sep 
 2152:25  T+4:24 Thor cutoff 
 2152:30  T+4:32 Thor sep 
  T+4:38 Delta burn 
 2152  T+4:43 Fairing sep 
 2159:07  T+11:09 SECO-1 299 km 200? x 580? x 53  
 2226:00  T+38:02 Delta circ burn, 12s 
 2226:12 T+38:14 SECO-2 
 2231  T+43:00 Delta sep 577 x 584 x 53.0 
 2226T+1:39:10 SES-3 evasive 
  T+1:39:15 SECO-3 
 2237T+1:50:10 SES-4 depletion 
  T+1:50:31 SECO-4  454 x 557 x 52.51 
1991 Jan 25   Power failure
1991 Feb 10 Pointed phase 
1991 May 13   Y axis gyro failed 
1991 Aug 3   Sky survey completion patch 
1991 Aug 13   Completed sky survey 
1994 Jul   PSPC-B retired 
1998 Apr 28   Star tracker failed 
1998 Sep 20   Pointed at sun, HRI damaged 
1998 Oct 28end of ops 
1998 Dec 6   PSPC observations 
1998 Dec 18   PSPC observations ended
1999 Feb 12   Decommissioned 
2011 Oct 23  0150?  Reentered over Andaman Sea/China? 

Payload:

  • XRT 0.84m aperture Wolter I X-ray Telescope Zerodur/Au, 4 shells, f=2.4m

  • WFC 0.58m aperture XUV Wide Field Camera, Ni-Al/Au mirrors f=0.52m 0.04-0.2 keV (60-300A)

  • PSPC-C Position Sensitive Proportional Counter, 0.1-2.4 keV

  • PSPC-B Position Sensitive Proportional Counter.

  • HRI High Resolution Imager (SAO/Murray)

Sunday, March 18, 2012

Astra 1G

 1997-076A


HS-601HP satellite, launch by ILS Proton. It is colocated with the other Astra 1 satellites. The second HS-601HP, it features GaAs solar cells with 7 kW power. In Mar 1998 it took over digital TV broadcast traffic from Astra 1F.


Astra 1G 
 

DateTimeEventOrbit  

1997 Dec 2  2310  Launch by Proton 382-02/DM3 No. 2L  KB LC81 
 2312 Stage 1 sep T+2:07 
 2315 Stage 2 sep T+5:35 
 2315 Fairing sep T+5:44 
 2315 8S812 burn T+5:40 
 2139 8S812 shutdown T+9:38 
 2319  Stage 3 sep  180? x 200? x 51.6 
 2320  T+10:44 PB (perekhodnikiy blok) sep 
1997 Dec 3  0026? DM burn 1 
  MECO-1  200? x 36000? x 51.5? 
 0530? DM burn 2 
  MECO-2 
1997 Dec 3  0551  T+6:41 Blok-DM sep 
1997 Dec 3    841.70 10316 x 35972 x 12.4 
1997 Dec 5  1400? LAM-1 
1997 Dec 9    1399.32 34118 x 36008 x 0.3 
1997 Dec 11  0700? LAM-2 
1997 Dec 17    1436.13 35755 x 35818 x 0.0 GEO 24.6E+0.01W 
1997 Dec 30    1438.90 35014 x 36668 x 0.0 GEO 19.2E+0.7W 
1998 Feb 24    1436.12 35772 x 35802 x 0.0 GEO 19.2E 
1999 Oct 18    1436.02 35722 x 35848 x 0.0 GEO 19.2E 
2000 Jun 13    1436.06 35755 x 35816 x 0.1 GEO 19.2E 
2006 Oct 28    1436.16 35777 x 35797 x 0.1 GEO 19.2E 
2009 Mar 22    1436.11 35773 x 35800 x 0.0 GEO 19.2E 

Kosmos 2475

 2011-064A


Three Glonass M launched by Proton-M with a Briz-M upper stage: Nos. 43, 44 and 45.

GLONASS 745 replaced 712 on 2011 Dec 8.


Glonass-M 
 

DateTimeEventOrbit  

2011 Nov 4  1251:41  Launch by Proton-M  KB LC81 
  T+2:07? Stage 1 sep 
  T+3:18? Fairing sep
  T+5:38? Stage 2 sep 
 1301  T+9:40? Stage 3 MECO 
 1301:25  T+9:53? Stage 3 sep  -469 x 200 x 51.5 
 1302:54  Briz MES-1 248s 
 1307:02  Briz MECO-1  199 x 200 x 51.5 
 1323:46  MES-2 931s 
 1339:18  MECO-2  200? x 5000? x 52.5?  
 1538:55  MES-3 886s 
 1553:41  MECO-3  
 1555?  DTB sep  313 x 19107 x 52.53  
 1829:30  MES-4 641s 
 1840:11  MECO-4  19142 x 19204 x 64.8  
 1841:22  Briz sep 

Us Weekly: October 17,2011

 https://welib.org/md5/5ec7881353662ed26e110c36fb7424cb

November 20,2006

  https://en.wikipedia.org/wiki/Association_football