GEO Imaging Satellite

Geo Imaging Satellite
GISAT-1 spacecraft in the cleanroom before encapsulation.
Manufacturer
Country of originIndia
OperatorISRO
ApplicationsEarth observation
Specifications
BusI-2K [1]
Launch mass2268 kg [3][4]
Power2280 watts[1]
EquipmentRitchey-Chrétien telescope[2]
Multispectral array detectors
Steerable antenna
RegimeGeostationary orbit
Design life7 years (planned)
Production
StatusPlanned
Launched1
Operational0
Failed1
Lost0
Maiden launch12 August 2021, 00:13 UTC[5][6][7][8]

Geo Imaging Satellite or GISAT is an Indian imaging satellite class for geostationary orbit with a high temporal resolution, meant for providing near real time imaging with fast revisit capability and real time monitoring.[9] Two satellites will provide resolution in the range of 42 to 318 m.[1][10] It will carry multi-spectral (Visible and Near-InfraRed, and Short Wave-InfraRed), multi-resolution (42 to 318 m) imaging instruments.[11]

The first satellite; EOS-3 (aka GISAT-1) was launched on 12 August 2021 but failed to reach orbit as cryogenic upper stage of GSLV could not ignite. EOS-3 was supposed to fulfil civilian applications.[12]

The second satellite, EOS-5 (aka GISAT-2) will be acquired by Indian Navy and will differ slightly in capabilities compared to EOS-03 (aka GISAT-1).[13][12][14]

  1. ^ a b c "GSLV F10/GISAT-1 Brochure". Retrieved 26 February 2020.[permanent dead link]
  2. ^ "Gisat 1, 2 (Eos 03, 05)".
  3. ^ "Annual Report 2015-2016". Indian Space Research Organisation. December 2015. p. 35. Archived from the original on 5 July 2016.
  4. ^ Cite error: The named reference gslv2020 was invoked but never defined (see the help page).
  5. ^ "Launch of India's new-age Earth imaging satellite by May 15: K. Sivan". Retrieved 15 April 2021.
  6. ^ "ISRO revises launch schedule of GISAT-1 after "minor issue" with satellite". Retrieved 26 March 2021.
  7. ^ Chethan Kumar (9 April 2021). "Voltage issue further delays launch of Gisat-1". The Times of India. Retrieved 9 April 2021.
  8. ^ Cite error: The named reference TH_20210710 was invoked but never defined (see the help page).
  9. ^ https://www.isro.gov.in/sites/default/files/flipping_book/annual_report_2019-20_english/files/assets/common/downloads/Annual%20Report%202019-20%20 [dead link]
  10. ^ Srivastava, Alok (3 January 2016). "User Interface Meet 2016: "New Indian eye in GEO"". nrsc.gov.in. Archived (PDF) from the original on 30 August 2016. Retrieved 7 March 2021.
  11. ^ "Untitled Page".
  12. ^ a b K, Chethan (7 May 2022). "Navy to acquire Gisat-2; Dedicated satellite to boost capability in IOR region | India News - Times of India". The Times of India. Retrieved 7 May 2022. The first one (Gisat-1) was for civilian use, but Gisat-2 is for strategic purposes and the navy has very specific requirements which they (Isro) need to meet,
  13. ^ "Ministry of Defence, Demands for Grants (2022-23), Army, Navy, Air Force, Joint Staff, Military Engineer Services, Servicemen Contributory Health Scheme And Sainik Schools (Demand No. 20 and 21)" (PDF). March 2022. Archived (PDF) from the original on 19 March 2022.
  14. ^ "Space research in India, January 2018 – June 2020" (PDF). Archived from the original (PDF) on 4 March 2021. GISAT Series: Geo Imaging Satellite is envisaged to provide high resolution imaging capability from geostationary orbit. It will consist of high-resolution imaging in VNIR (GISAT-1/-2) and LWIR (GISAT-2). There will be two hyperspectral imagers covering VNIR and SWIR regions. GISAT-1 payload was successfully delivered to the project.

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