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INSAT-2D

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INSAT-2D
Mission typeMultipurpose communication
OperatorINSAT
COSPAR ID1997-027B Edit this at Wikidata
SATCAT no.24820Edit this on Wikidata
Mission duration7 Years
Spacecraft properties
ManufacturerISRO
Launch mass2,079 kg (4,583 lb)
Dry mass995 kg (2,194 lb)
Power1650 watts
Start of mission
Launch date4 June 1997
RocketAriane-4
Launch siteFrench Guiana
End of mission
Deactivated4 Oct, 1997
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Longitude93.5 Degree East

INSAT-2D was an Indian communications satellite. Launched on 4 June 1997, and similar to INSAT-2C, INSAT-2D went out of order on October 4, 1997, because of a power inconsistency problem and was later replaced by INSAT-2DT, an in-orbit satellite which was previously known as ARABSAT-1C. The main aim of the satellite was improved communication.[1][2] In the INSAT-2 (Indian National Satellite System) series, INSAT-2D was the fourth consecutive communication satellite. The satellite was launched using an Ariane 4 rocket from French Guiana.[2]

The satellite was placed into geostationary orbit at an inclination of 93.5 degrees east.[3] INSAT-2D's lift-off mass was 2,079 kg (4,583 lb) with propellants of which 995 kg (2,194 lb) were the dry weight.[1] The satellite was expected to have a nominal lifespan of around 7–9 years.[4][3] The onboard power of the satellite was estimated to be 1,650 watts.[1]

Insat-2D, imaged at Northolt Branch Observatories, satelite can be seen as a bright spot passing by fast. BepiColombo satelite of JAXA can also be seen as a dot moving slowly across the screen.

Its communication payload consisted of 16C-band transponders (extended C-band, for fixed-satellite service), two high-power C-band transponders (for broadcasting-satellite service, BSS), one S-band transponder (for BSS), one C/S-band mobile communication transponder, and three Ku-band transponders.[1][2][3][4]

References

  1. ^ a b c d "INSAT-2D - ISRO". www.isro.gov.in. Archived from the original on 2021-06-24. Retrieved 2021-06-18.
  2. ^ a b c "INSAT-2D". www.vssc.gov.in. Archived from the original on 2021-06-24. Retrieved 2021-06-18.
  3. ^ a b c "Welcome To ISRO :: Satellites :: Geo-Stationary Satellite :: INSAT-2D". resource.itschool.gov.in. Retrieved 2021-06-18.
  4. ^ a b "Insat 2C, 2D". Gunter's Space Page. Retrieved 2021-06-18.
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