INSAT-4A

Last updated
INSAT 4A
Render of INSAT-4A spacecraft in deployed configuration.jpg
INSAT-4A spacecraft in deployed configuration
Mission type Communications
Operator INSAT
COSPAR ID 2005-049A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 28911
Website INSAT 4A
Mission durationPlanned: 12 years
Achieved: 13 years, 9 months, 29 days
Spacecraft properties
Bus I-3K
Manufacturer ISRO
Launch mass3,081 kilograms (6,792 lb)
Dry mass1,386 kilograms (3,056 lb) [1]
Dimensions2.8 x 1.7 x 2.0 m
Power5,922 watts
Start of mission
Launch date21 December 2005, 22:33 (2005-12-21UTC22:33Z) UTC
Rocket Ariane 5GS
Launch site Kourou ELA-3
Contractor Arianespace
End of mission
DisposalMoved to a graveyard orbit
Deactivated21 October 2019 (2019-10-22) [2]
Orbital parameters
Reference system Geocentric
Regime Geostationary
Slot83° East ( 0°N83°E / 0°N +83°E / 0; +83 )
Period 24 hours
Transponders
Band12 Ku band
12 C-band
Bandwidth36 megahertz
TWTA power140 & 63 watts
EIRP 51 & 38 dbW
←  INSAT-3E
INSAT-4B  →

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]

Contents

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

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". Archived from the original on 28 October 2019. Retrieved 28 October 2019.
  2. 1 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". Archived from the original on 2015-09-27. Retrieved 2017-01-29.
  5. ↑ "SALIENT FEATURES OF INSAT-4A". www.ursc.gov.in. Archived from the original on 15 September 2015. Retrieved 2020-01-16.
  6. ↑ "Space India, October 2005 - March 2006" (PDF).
  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. Archived from the original on 2006-05-07. Retrieved 2022-12-20.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  9. ↑ "Press Release: India's communication satellite GSAT-30 launched successfully - ISRO". www.isro.gov.in. Archived from the original on 2020-05-30. 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.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.