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INSAT-4A

INSAT-4A was the first one in the INSAT-4 Satellites series, providing services in the Ku and C band frequency bands. At the time of launch, it was the heaviest satellite India had produced. The Ku transponders cover the Indian main land and C-Band transponders cover an extended area. It has a dozen Ku transponders and another dozen of C-band transponders. This spacecraft was placed at 83°E along with INSAT-2E and INSAT-3B, by Ariane launch vehicle (ARIANE5-V169).[3][4][5][6]

Overview

INSAT-4A was a communication satellite intended for providing high quality television, telecommunication, broadcasting services and was the first satellite to be launched in the INSAT-4 series.

Launch

INSAT-4A was launched by an Ariane 5, produced by Arianespace, on 21 Dec 2005 at 22.33 UTC[7][8] from Kourou, French Guiana. It was placed into a Geosynchronous Transfer Orbit (GTO), 30 minutes after lift-off in 3-axis stabilized mode, with a perigee of 859 km and an apogee of 36,055 km. Its co-passenger on board was Meteosat-9 of EUMETSAT.

Payload

  • 12 Ku band transponders. It was being used by Tata Sky.
  • 12 C-band transponders

End Of Life and Replacement

The satellite was placed in the graveyard orbit on 21 October 2019 after almost 14 years in service.[2] A replacement satellite GSAT-30 was launched on 21:05 UTC, 16 January 2020 aboard Ariane 5 VA251.[9][10]

References

  1. Salient features of INSAT-4A retrieved 28 October 2019^
  2. Historical satellite position data for INSAT-4A for the month of October 2019 retrieved 28 October 2019^
  3. Insat 4A, 4B^
  4. Insat-4A - Isro retrieved 2017-01-29^
  5. SALIENT FEATURES OF INSAT-4A www.ursc.gov.in, retrieved 2020-01-16^
  6. Space India, October 2005 - March 2006^
  7. Ariane: 5 for 5 in 2005, Successful launch of Insat 4A and MSG-2 Arianespace, retrieved 2022-12-20^
  8. INSAT-4A Launched Successfully 2006-05-07, retrieved 2022-12-20^
  9. Press Release: India's communication satellite GSAT-30 launched successfully - ISRO www.isro.gov.in, retrieved 2020-01-16^
  10. Flight VA251 – first Arianespace mission of 2020 a success: EUTELSAT KONNECT and GSAT-30 in orbit Arianespace, retrieved 2020-01-16^