General Discussion about Airtel Digital TV- For any Help & Issues

SES-9 progress for last 30 days:

Orbital data from Mar 20th 2016

rAxEB3V.jpg


Perigee: 30,491.2 km
Apogee: 41,099.9 km


Orbital data from 21'st April 2016

9jq36mn.jpg


Perigee: 34,716.1 km
Apogee: 36,934.1 km


4,225 km gained in Perigee (last 30 days)
4,165 km reduced in Apogee (last 30 days)

Around 1,000 km both Apogee reduction and Perigee raising remains.

The inclination has also changed from 0.2 to 0.1 but most changes in inclination happened before March 20 when SES-9 was using chemical thrusters to raise Perigee from 300 km to 30,000 km. Now it's on ion thrusters which uses solar energy and xenon ions.

On March 20th SES-9 was oscillating between Seychelles and Papua New Guinea now the oscillation is narrowed over Indonesian island and soon will stop oscillating at 108 longitude.
 
iphifi said:
Basically Perigee is the closest point and Apogee is the farthest point from Earth. If they are equal then orbit becomes circular.
so how many odd days it will require more to reach its desired location???
 
Optimus_Prime said:
so how many odd days it will require more to reach its desired location???


1070 km Altitude raising remains at average 140 km/day works out to around 8 days.
 
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