Friday, November 29, 2013

IRNSS-1A

 2013-034A


Indian Regional Navigation Satellite System, one of three sats at 34 83 and 131.5E and two in 29 deg IGSO at 55 and 111.5E.

Mass 1425 kg full, 614 kg dry, 1.58 x 1.50 x 1.50 m, span 5m? Control from Hassan with navigation parameters generated at INC Byalalu near Bangalore.

Stage 3 NOTAM area was (17S, 133W; 19S 133W; 10S 92W; 8S 93W) with a center at about 112.5W 13.5S.


IRNSS 
 

DateTimeEventOrbit  

2013 Jul 1  1811 Launch by PSLV C22  SDSC 
  T+0:00 SOM 1-4 on 
  T+0:25 SOM 5/6 on 
  T+1:10 SOM1/2 sep, Vi 1.392 23 km 
  T+1:10 SOM3/4 sep, Vi 1.396 23 km 
  T+1:32 SOM5/6 sep Vi 1.955 39 km 
  T+1:55 St 1 sep 58 km 2.391 km/s 
  T+3:29 Fairing sep 112.5km 3.7424 km/s 
 1814 T+4:27 St 2 sep, 128 km 5.3825 km/s 
  T+4:28 St 3 burn 112s 
 1817 T+6:20 St 3 MECO, coast 
 1819 T+8:41 St 3 sep 163 km 7.7585 km/s 
 1822 T+11:06 St 4 MES, 190 km 7.7259 km/s 
 1830 T+19:48 St 4 MECO 449 km 9.6248 km/s 
 1831 T+20:25 St 4 sep from IRNSS-1A, 501 km 9.6034 km/s  284 x 20650 x 17.86  
 1900?  St 3 reentry 
2013 Jul 2    360.94 281 x 20547 x 17.9 

Tuesday, November 26, 2013

Sinosat 1

 1998-044A


After the mixed results of the EurasSpace (DASA/CASC) DFH-3 project, EurasSpace turned to Aerospatiale/Cannes for the Sinosat 1 satellite. Dornier Satellitensysteme GmbH was the official prime for the satellite, but Aerospatiale/Cannes built the spacecraft in collaboration with Chinese engineers. Shortly before launch, the Cannes facility became part of Alcatel Space Industries. Launch was by CZ-3B in July 1998. The Spacebus 3000A satellite's launch mass is 2820 kg, 1600 kg BOL. 26m span. After launch and early orbit checkout, EurasSpace delivered Sinosat to Sino Satellite Communications Co. (Sinosatcom) of Beijing. Sinosat was also called Xinnuo 1.

The CZ-3B stage second burn was about 2.84km/s, requiring a mass ratio of 1.93 and the post-burn mass was around 5820 kg including payload assuming 200 kg residual fuel. This implies a propellant usage of 5400 kg.

Capacity on Sinosat was leased by Intelsat as Intelsat APR-1.


Sinosat 1 
 

DateTimeEventOrbit  

1998 Jul 18  0920  Launch by CZ-3B 
  T+2:07 LB sep 
  T+2:27 Stage 1 sep 
  T+3:52 Fairing sep
  T+5:32 Stage 2 sep 
  T+5:32 Stage 3 MES-1 
 0930 T+10:31 Stage 3 MECO-1 
  T+21:21 Stage 3 MES-2 
  T+24:20 Stage 3 MECO-2 
 0946  T+26:00 Stage 3 sep 
1998 Jul 18    642.35 610 x 35955 x 19.0 
1998 Jul 19   LAM-1 
1998 Jul 21   LAM-2 
1998 Jul 23  s  LAM-3 
1998 Aug 2   1436.13 35784 x 35790 x 0.1 GEO 110.5E 
1999 Oct 18    1436.15 35775 x 35800 x 0.1 GEO 110.5E 
2006 Aug 4    1436.10 35768 x 35804 x 0.1 GEO 110.5E 
2010   Sold to China Satcom as ZX5B 
2012   Sold to PSN as PSN V 
2012 Apr 16    1436.12 35765 x 35808 x 0.6 GEO 110.4E 
2012 Apr 17   Relocate, sold to PSN 
2012 Jun 13   Move in at 146E 
2012 Jun 14    1436.18 35764 x 35811 x0.7 GEO 146.0E 
2013 Jan 17    1436.13 35769 x 35804 x 1.2 GEO 145.9E 

October 1,2026

  https://planet4589.org/space/jsr/back/news.860.txt