Ariane Passenger Payload Experiment
This article needs additional citations for verification. (July 2009) (Learn how and when to remove this template message)
|Mission duration||2 years, 3 months|
|Launch mass||350 kilograms (770 lb)|
|Start of mission|
|Launch date||19 June 1981|
|Launch site||Kourou ELA-1|
|End of mission|
|Deactivated||19 September 1983|
The Ariane Passenger PayLoad Experiment (APPLE), was an experimental communication satellite with a C-Band transponder launched by the Indian Space Research Organisation on June 19, 1981 by Ariane, a launch vehicle of the European Space Agency (ESA) from Centre Spatial Guyanais near Kourou in French Guiana.
APPLE was India's first three-axis stabilised experimental Geostationary communication satellite. On July 16, 1981, the satellite was positioned at 102° E longitude. The 672 kg satellite served as testbed of the Indian telecommunications space relay infrastructure despite the failure of one solar panel to deploy.
It was used in several communication experiments including relay of TV programmes and radio networking. It was a cylindrical spacecraft measuring 1.2 m in diameter and 1.2 m high. Its payload consisted of two 6/4 GHz transponders connected to a 0.9 m diameter parabolic antenna. It went out of service on September 19, 1983.
|Mission||Experimental geostationary communication|
|Onboard Power||210 watts|
|Payload||C-band transponders (Two)|
|Launch Date||June 19, 1981|
|Launch Vehicle||Ariane -1(V-3)|
|Mission life||Two years|
- "ISRO success stories". THE HINDU. 28 April 2001. Archived from the original on 17 October 2006. Retrieved 2013-03-17....This important opportunity was utilised to build indigenously a 672-kg state-of-the-art three-axis-stabilised (as against the spin-stabilised Aryabhata) geosynchronous communication satellite called APPLE – Ariane Passenger Payload Experiment – which was launched in June 1981.
- "Welcome To ISRO :: Satellites :: Geo-Stationary Satellite :: APPLE". Isro.org. 1981-06-19. Retrieved 2013-03-17.
|This article about one or more spacecraft of India is a stub. You can help Wikipedia by expanding it.|