In the first critical
orbit-raising manoeuvre, conducted at 6:57 am (IST) this morning (September 29,
2003), the 440 Newton Liquid Apogee Motor (LAM) on board INSAT-3E was fired for 82 minutes by commanding the satellite from
Master Control Facility (MCF), Hassan. With this LAM firing, INSAT-3E perigee
(closest point to the earth) has been raised from 649 km at the time of launch
to 14,970 km at present. The apogee (farthest point to earth) remains at 35,900
km and the inclination of the orbit with respect to the equatorial plane has
been reduced from 7 deg. at the time of launch to the present 1.9 deg. The
orbital period is 15 hours 30 minutes.
It may be recalled that INSAT-3E was launched by Ariane-5 of Arianespace
yesterday (September 28, 2003) from Kourou, French Guyana. The satellite had
gone out of visibility of MCF, Hassan, at 3 pm yesterday and came within its
visibility at 2:24 am IST this morning.
All systems on board the satellite are functioning normally. The satellite will
go out of MCF visibility again at about 2 pm IST this afternoon and come within
its visibility at 8:30 am tomorrow. Further orbit raising maneuvers are planned
in the next few days.