Cartosat-3

Cartosat-3 is an advanced Indian Earth Observation satellite built and developed by ISRO, which will replace the IRS series. It has a panchromatic resolution of 0.25 metres making it the imaging satellite with highest resolution in the world and Mx of 1 metre with a high quality resolution which is a major improvement from the previous payloads in the Cartosat series.[3][4][5]

Cartosat-3
Render of Cartosat-3 satellite in deployed configuration
Mission typeEarth observation
OperatorISRO
COSPAR ID2019-081A
SATCAT no.44804
Websitewww.isro.gov.in/launcher/pslv-c47-cartosat-3-mission
Mission durationPlanned: 5 years
Elapsed: 7 months, 1 day[1]
Spacecraft properties
ManufacturerISRO
Launch mass1,625 kg (3,583 lb)[2]
Power2000 watts[2]
Start of mission
Launch date27 November 2019 (2019-11-27), 03:58 UTC
09:28 IST[1]
RocketPSLV-XL C47[1]
Launch siteSatish Dhawan SLP[1]
ContractorISRO
Orbital parameters
Reference systemGeocentric
RegimeSun-synchronous[1]
Periapsis altitude509 km (316 mi)[1]
Apoapsis altitude509 km (316 mi)[1]
Inclination97.5°[2]
Cartosat series
 

Potential uses include weather mapping, cartography or army defence, and strategic applications.[6]

Overview

Cartosat-3 has a resolution of 25 cm (10").[7] It uses 1.2 m optics with 60% of weight removal compared to Cartosat-2. Other features include the use of adaptive optics, acousto optical devices, in-orbit focusing using MEMs and large area-light weight mirrors and advanced sense with a high quality resolution.[8] It has a planned mission life of 5 years.[9]

History

Cartosat-3 is the 3rd generation of high-resolution imaging satellites developed by ISRO.[10] It was developed in response to increased demand for imaging services to address urban planning, rural resource and infrastructure development needs.[11]

Launch
PSLV C47 lifting off from Second Launch Pad with Cartosat-3.

PSLV C47 carrying Cartosat-3 was launched on 27 November 2019 at 03:58 UTC using XL variant of Polar Satellite Launch Vehicle from the second launch pad of Satish Dhawan Space Centre into a sun synchronous orbit of 509 kilometers. Thirteen commercial ride-sharing 3U cubesats including twelve SuperDoves (Flock 4p)[12] by Planet Labs and one Meshbed by Analytical Space of United States were also put in orbit using the same launch vehicle.[9][13] Commercial ride-share was arranged by New Space India ltd, Spaceflight industries and ISILaunch.[14][15]

See also

References
  1. "Press Release - PSLV-C47 successfully launches Cartosat-3 and 13 Commercial nanosatellites into Sun Synchronous Polar Orbit". Archived from the original on 27 November 2019. Retrieved 27 November 2019.
  2. "PSLV C47/Cartosat-3 Mission Launch Kit" (PDF). Archived from the original (PDF) on 19 November 2019. Retrieved 27 November 2019.
  3. Prasad, Narayan. "Cartosat-3 in space — here is how ISRO can now exploit its full potential". ThePrint. Retrieved 2 December 2019.
  4. "ISRO: ISRO reschedules CARTOSAT 3 launch to November 27". m-economictimes-com.cdn.ampproject.org. Retrieved 23 November 2019.
  5. "Isro's Cartosat-3 launch next week - ETtech". ETtech.com. Retrieved 23 November 2019.
  6. Prasad, Narayan. "Cartosat-3 in space — here is how ISRO can now exploit its full potential". ThePrint. Retrieved 2 December 2019.
  7. N. Gopal Raj. "ISRO plans a new high-resolution earth satellite". The Hindu. Archived from the original on 19 January 2018. Retrieved 19 January 2018.
  8. Current Science, Vol. 93, no. 12, 25 December 2007, page 1729.
  9. "ISRO's tracking centre assumes control of CARTOSAT-3". The Hindu. PTI. 27 November 2019. ISSN 0971-751X. Retrieved 27 November 2019.CS1 maint: others (link)
  10. "PSLV-C47 / Cartosat-3 Mission".
  11. "Cartosat-3".
  12. "12 SuperDove Satellites Hitching a Ride to Orbit on the PSLV". Retrieved 27 November 2019.
  13. Clark, Stephen. "PSLV delivers India's highest-resolution Earth observation satellite to orbit – Spaceflight Now". Retrieved 27 November 2019.
  14. "Successful ISILAUNCH29 campaign". ISILAUNCH. 27 November 2019. Retrieved 27 November 2019.
  15. "Getting Meshbed to Space!". Spaceflight. 14 October 2019. Retrieved 27 November 2019.
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