GSAT-29

GSAT-29 is a high-throughput communication satellite developed by the Indian Space Research Organisation (ISRO).[4][5] The mission aims at providing high-speed bandwidth to Village Resource Centres (VRC) in rural areas.[6] The two Ku and Ka operational payloads will provide communication services to Jammu and Kashmir and Northeast India under Digital India programme. [7] GSAT-29 was the heaviest satellite, weighing 3,423 kg (7,546 lb),[8] that was placed in orbit by an Indian launch vehicle.[9][10]

GSAT-29
Render of GSAT-29
Mission typeCommunication
OperatorISRO
COSPAR ID2018-089A
SATCAT no.43698
Mission durationPlanned: 10 years[1]
Elapsed: 1 year, 6 months, 13 days
Spacecraft properties
BusI-3K
ManufacturerISRO Satellite Centre
Space Applications Centre
Launch mass3,423 kg (7,546 lb)[1][2]
Powersolar arrays, batteries
Start of mission
Launch date14 November 2018
11:38 UTC [3]
RocketGSLV Mk III [4]
Launch siteSatish Dhawan SLP
ContractorISRO
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Slot55°E
Transponders
BandKa, Ku, Q band, V band, and optical communication payload[2]
 

Payloads

Apart from its main communication payload in Ka/Ku bands, GSAT-29 hosts few experimental payloads to mature their technology for use in future spacecrafts.[11]

  • Q band and V band payload: experimental microwave communication payloads
  • Optical Communication Technology (OCT) payload: experimental payload for optical communication.[12]
  • GEO imaging High Resolution Camera (GHRC): for high resolution imaging from geosynchronous orbit. It has 55 meter resolution and can image in six VNIR spectral bands at ~0.6 sec/frame.[13][14]

Launch
GSLV Mk III D2 lifting off from launchpad, carrying GSAT-29

The satellite was launched on 14 November 2018 through the second developmental flight of GSLV Mk III,[15] that placed the GSAT-29 satellite into its planned geosynchronous transfer orbit (GTO) over the equator.[16] It joins the Indian National Satellite System (INSAT) fleet in geostationary orbit.[10]

Op # Date/
Time (UTC)		 LAM burn time Height achieved Inclination
achieved		 Orbital period References
ApogeePerigee
115 November 2018
08:34		4875 sec35,897 km (22,305 mi)7,642 km (4,749 mi)8.9°13 hr[17]
216 November 2018
10:14		4988 sec35,837 km (22,268 mi)32,825 km (20,397 mi)0.31°22 hr, 70 min[18]
317 November 2018
04:25		207 sec35,875 km (22,292 mi)35,307 km (21,939 mi)n/a24hr[19]

References
  1. "GSAT-29". ISRO.gov.in. Retrieved 11 November 2018.
  2. GSAT-29. Gunter Dirk Krebs, Gunter's Space Page. Accessed: 9 November 2018.
  3. William Graham (2018-11-14). "Indian GSLV rocket launches GSAT-29".
  4. "GSLV-MkIII-D2/GSAT-29 Mission (Official)". Archived from the original on 2018-06-12. Retrieved 2017-11-05.
  5. ISRO’s GSAT-29 launch in October. The Economic Times, India. 20 September 2018.
  6. "Cyclone clouds ISRO's GSAT-29 launch plan".
  7. "Isro to launch communication satellite specifically for J&K and NE on Nov 14".
  8. "'India masters rocket science': Here's why the new ISRO launch is special".
  9. "ISRO successfully launches its heaviest satellite GSAT-29 from Sriharikota".
  10. The third and final orbit raising operation of GSAT-29 ISRO 17 November 2018
  11. "GSAT-29 - ISRO". www.isro.gov.in. Retrieved 2018-11-12.
  12. "SAC Courier, VOl. 43, Issue 03, July-October 2018" (PDF). SAC.gov.in. 10 January 2019. p. 5. Archived from the original (PDF) on 10 January 2019. Retrieved 10 January 2019.
  13. Pandya, Mehul; Pradhan, Rohit (2019-09-26). "A study of rocket exhaust plume in the lower atmosphere using GHRC instrument onboard geostationary satellite". Cite journal requires |journal= (help)
  14. "ISRO Director Kailasavadivoo Sivan Press Meet Live" (video) (in Hindi). 14 November 2018. Event occurs at 8 minute 35 seconds.
  15. "Isro gets nod for semi-cryogenic engine, will boost GSLV's lift capability by 1 tonne".
  16. "GSLV MkIII-D2 successfully launches GSAT-29".
  17. "GSLV Mk III-D2 / GSAT-29 Mission: The first orbit raising operation..." Indian Space Research Organisation. 15 November 2018. Retrieved 15 November 2018.
  18. "The second orbit raising operation..." Indian Space Research Organisation. 16 November 2018. Retrieved 16 November 2018.
  19. "The third orbit raising operation..." Indian Space Research Organisation. 17 November 2018. Retrieved 17 November 2018.
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