Compass-IGSO1 (BD-2 I1)

Spacecraft nº:

Chinese spacecraft nº: 143

Launch data: Designation  36828 / 10036A Launch date  31 July 2010 - 21:30 UT Launch site  Xichang, LC1A Launch vehicle  CZ-3A Mission  Military: Navigation/GPS Geostationary orbit on Aug 7.72: Perigee / Apogee  35669 x 35892 km Eccentricity  2,65E-03 Inclination  55.09 deg Period  1435.82 min

Mission details:

• The fifth ('di wu ke') Beidou Daohang Weixing (North Star Navigation Satellite) was launched from Xichang on Jul 30??, 2010 by a CZ-3A rocket. It is the first Beidou targeted for an inclined geosynchronous orbit. The CZ-3A was launched on an azimuth of around 140 deg, not used previously from Xichang, and entered a circa 190 x 400? km x 55 deg parking orbit about ten minutes after launch. The third stage then restarted after a brief 4 minute coast, to enter a 189 x 35850 km x 55.1 deg transfer orbit. BDW5 used its onboard engine to circularize its path on Aug 2; by Aug 4 it was in a 35652 x 35959 km x 55.1 deg orbit.
• Part of Compass constellation.