GEO Imaging Satellite

Summary

Geo Imaging Satellite
GISAT-1 spacecraft in the cleanroom before encapsulation.jpg
GISAT-1 spacecraft in the cleanroom before encapsulation.
ManufacturerISRO Satellite Centre
Space Applications Centre
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)
Dimensions
Production
StatusPlanned
Launched0 (2 planned)
Maiden launchGISAT-1: May 2021 (planned) [5][6][7]

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.[8] Two identical satellites will provide resolution in the range of 42 to 318 m.[1][9] It will carry multi-spectral (Visible and Near-InfraRed, and Short Wave-InfraRed), multi-resolution (42 to 318 m) imaging instruments.[10]

Geo Imaging Satellite GISAT-1 onboard GSLV-F10 was planned to launch on 5 March 2020, but launch was deferred due to some technical reasons.[11][12][13]

Imaging capabilities

The GISAT-1 in deployed configuration.

GISATs will image in multi-spectral and hyper-spectral bands to provide near real-time pictures of large areas of the country, under cloud-free conditions, at frequent intervals which is, selected field image in every 5 minutes and entire Indian landmass image every 30 minutes at 42 m spatial resolution.[1]

Features of GISAT-1 are:

Imaging capabilities of GISAT-1 [1]
Band Channels Ground Resolution(m) Range(μm)
Multispectral (VNIR) 6 42 0.45 – 0.875
Hyperspectral (VNIR) 158 318 0.375 – 1.0
Hyperspectral (SWIR) 256 191 0.9 – 2.5

Launch schedule

Designation COSPAR ID NORAD ID Power Launch Orbital parameters Remarks
Launch date, Time (UTC) Launch mass Launch vehicle Launch site Orbit Longitude
GISAT-1 / EOS-03 TBD TBD 2280 watts May 2021 2268 kg GSLV-F10 SDSC GTO 85.5° E (planned) [14][15][16][17][18][4][11][19]
GISAT-2 / EOS-05 TBD TBD 2280 watts 2021 (planned) 2268 kg GSLV-F12 SDSC GTO [20][21][19]

See also

References

  1. ^ a b c d e "GSLV F10/GISAT-1 Brochure". Retrieved 26 February 2020.
  2. ^ https://space.skyrocket.de/doc_sdat/gisat-1.htm
  3. ^ "Annual Report 2015-2016". Indian Space Research Organisation. December 2015. p. 35. Archived from the original on 5 July 2016.
  4. ^ a b "GSLV Planned launch". VSSC. Retrieved 22 December 2019.
  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. ^ April 9, Chethan Kumar / TNN /; 2021; Ist, 22:46. "Voltage issue further delays launch of Gisat-1 | India News - The Times of India". The Times of India. Retrieved 9 April 2021.CS1 maint: numeric names: authors list (link)
  8. ^ https://www.isro.gov.in/sites/default/files/flipping_book/annual_report_2019-20_english/files/assets/common/downloads/Annual%20Report%202019-20%20
  9. ^ 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.
  10. ^ http://pib.nic.in/newsite/mbErel.aspx?relid=94099
  11. ^ a b "The launch of GISAT-1 onboard GSLV-F10, planned for 5 March 2020, is postponed". isro.gov.in. ISRO. Retrieved 4 March 2020.
  12. ^ D.S., Madhumati. "ISRO readies for a busy 2019". The Hindu. Retrieved 3 January 2019.
  13. ^ "After PSLV-C43 success, ISRO centres set for GSLV launch on December 19". Retrieved 20 December 2018.
  14. ^ "भारत का सबसे ताकतवर टेलीस्कोप, अब PAK पर हर पल नजर" (in Hindi). Aaj Tak. 20 December 2019. Retrieved 20 December 2019.
  15. ^ "દર 30 મીનિટે આકાશમાંથી ભારતને મળશે એક તસવીર, ઈસરો રચવા જઈ રહ્યું છે નવો ઇતિહાસ" (in Gujarati). GSTV. 21 December 2019. Retrieved 22 December 2019.
  16. ^ "ఫిబ్రవరిలో జీఎస్‌ఎల్‌వీ ప్రయోగం". eenadu.net (in Telugu). EENADU. Retrieved 27 January 2020.
  17. ^ "इसरो जाकर सैटेलाइट लांचिग देखेंगी रांची की मृदुला". jagran.com (in Hindi). Retrieved 14 February 2020.
  18. ^ "Status report on the current and future satellite systems by ISRO". Retrieved 21 September 2019.
  19. ^ a b "ANNUAL REPORT 2020-2021 v" (PDF). ISRO. Retrieved 6 March 2021.
  20. ^ "GSLV Project: Planned launches of GSLV". Retrieved 22 December 2019.
  21. ^ "HAL hands over 50th set of L-40 stage of GSLV-MKII to ISRO". zeenews.india.com. 28 February 2020. Retrieved 28 February 2020.