Friday, February 20, 2004

JCSAT 3

 1995-043A


The third JCSAT satellite was an HS-601 model rather than the older spinning satellites used for JCSAT 1 and 2. It was launched on an Atlas 2AS, flight 8205/AC-117, on 1995 Aug 29. JCSAT 3 is owned by Japan Satellite Systems (JSS).

It is the first Japanese digital TV broadcasting satellite, and will be operated by DMC (Digital Multi-Channel Planning Co, Ltd), a partnership of JSAT (Japan Satellite Corp), Itochu Corp, Mitsui and Co, Ltd, Nissho Iwai Corp and Sumitomo Corp. The satellite will also provide data and fax transmission services.

JCSAT 3 was launched into a supersynchronous transfer orbit with an apogee of 80000 km. Space Command's circa-250-km initial perigee is a tracking error; the initial perigee was 167 km, a difference of 5m/s at apogee.


JCSAT 3 
 

DateTimeEventOrbit  

1995 Aug 29  0053:01  Launch by Atlas IIAS (AC-117)  CC LC36 
  Atlas 8205 sep 
 0058:17 Centaur AC-117 MES1 (4:26) 
 0102:44 Centaur AC-117 MECO1, parking orbit 155 x 395 x 28.2 
 0116:45 Centaur AC-117 MES2 (1:47) 
 0118:32 Centaur AC-117 MECO2, transfer orbit  
 0120? Centaur AC-117 sep  260 x 80799 x 23.2  
   1681.65 248 x 80682 x 23.1 (TLE) 
   1681.65 167 x 80684 x 23.1 (Est) 
1995 Aug 30    1685.13 260 x 80799 x 23.2 
 1924  First apogee on equator at 99W 
1995 Sep 31050?LAM-1 
1995 Sep 82100?LAM-2 
1995 Sep 10    1621.15 35718 x 42951 x 0.25 
1995 Sep 12  1430?  LAM-3 
1995 Sep 14    1437.46 35704 x 35921 x 0.1 GEO 128.2E+0.3E 
1995 Oct 2    1436.03 35740 x 35830 x 0.0 GEO 127.5E 
1995 Dec 30    1436.14 35782 x 35792 x 0.0 GEO 128.0E 
1997 May 25    1436.16 35782 x 35793 x 0.0 GEO 128.0E 
2002 Mar 6  1436.14 35779 x 35795 x 0.0 GEO 128.0E 

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