Cartosat-2D
{{Short description|Indian Earth observation satellite}}
{{Use British English|date=May 2021}}
{{Use dmy dates|date=May 2021}}
{{Infobox spaceflight
| name = Cartosat-2D
| names_list = CartoSat-2D
| image = PSLV-C40- Heatshield or payload fairing is being closed with all 31 satellites.jpg
| image_caption =
| image_size = 300px
| mission_type = Earth observation
| operator = ISRO
| COSPAR_ID = 2017-008A
| SATCAT = 41948
| website = https://isro.gov.in/
| mission_duration = 5 years (planned)
{{time interval|15 February 2017|show=ymd}} (in progress)
| spacecraft = CartoSat-2D
| spacecraft+type =
| spacecraft_bus = IRS-2
| manufacturer = Indian Space Research Organisation
| launch_mass = {{cvt|714|kg}}
| dry_mass =
| dimensions = 2.5 m in height
2.4 m in diameter
| power = 986 watts
| launch_date = 15 February 2017, 03:58 UTC
| launch_rocket = Polar Satellite Launch Vehicle-XL, PSLV-C37
| launch_site = Satish Dhawan Space Centre, First Launch Pad (FLP)
| launch_contractor = Indian Space Research Organisation
| entered_service = 15 May 2017
| disposal_type =
| deactivated =
| last_contact =
| orbit_reference = Geocentric orbit{{cite web|url=https://heavens-above.com/orbit.aspx?satid=41948|title=CARTOSAT-2D|publisher=Heavens Above|access-date=11 May 2021}}
| orbit_regime = Sun-synchronous orbit
| orbit_periapsis = {{cvt|504|km}}
| orbit_apoapsis = {{cvt|512|km}}
| orbit_inclination = 97.49°
| orbit_period = 94.72 minutes
| apsis = gee
| instruments_list = {{Infobox spaceflight/Instruments
| acronym1 = PAN | name1 = Panchromatic Camera
| acronym2 = HRMX | name2 = High-Resolution Multi-Spectral radiometer
| acronym3 = EvM | name3 = Event Monitoring camera
}}
| programme = Earth observation satellites series
| previous_mission = Resourcesat-2A
| next_mission = Cartosat-2E
}}
Cartosat-2D is an Earth observation satellite in a Sun-synchronous orbit (SSO) and the fifth of the Cartosat series of satellites.{{cite web |url=http://space.skyrocket.de/doc_sdat/cartosat-2.htm|title=Cartosat 2, 2A, 2B, 2C, 2D, 2E, 2F|publisher=Gunter's Space Page|date=7 July 2020|access-date=11 May 2021}} The satellite is built, launched and maintained by the Indian Space Research Organisation (ISRO). Cartosat-2D has a mass of 714 kg.{{cite web|url=https://www.isro.gov.in/sites/default/files/pslv_c37-final.pdf|title=PSLV-C37: Cartosat-2 Series Satellite Brochure|publisher=ISRO|access-date=11 May 2021|archive-date=12 May 2021|archive-url=https://web.archive.org/web/20210512075334/https://www.isro.gov.in/sites/default/files/pslv_c37-final.pdf|url-status=dead}}
Satellite description
The satellite achieves three-axis stabilization through a combination of reaction wheels, magnetorquers and hydrazine-fuelled reaction control thrusters. Power is generated by a pair of solar panels, charging two lithium-ion batteries. The solar panels generate 986 watts of power when in Sun-pointed mode. The satellite is outfitted with an eight-channel GPS receiver for the calculation of instantaneous state vectors and orbital parameters. GPS is also used for GEO-referencing of acquired imaging data.{{cite web|url=https://directory.eoportal.org/web/eoportal/satellite-missions/c-missions/cartosat-2d|title=CartoSat-2D|publisher=ESA Earth Observation Portal|date=11 May 2021|access-date=11 May 2021}}
Instruments
The CartoSat-2D carries a panchromatic camera (PAN) capable of taking black-and-white pictures in the visible region of electromagnetic spectrum. It also carries a High-Resolution Multi-Spectral (HRMX) radiometer which is a type of optical imager.{{cite web|url=https://www.wmo-sat.info/oscar/satellites/view/cartosat_2d|title=Satellite: Cartosat-2D|publisher=WMO|date=4 January 2020|access-date=14 May 2021}} The satellite has a spatial resolution of 0.6 metres. CartoSat-2D is also capable of capturing minute long video of a fixed spot as well, Event Monitoring camera (EvM) for frequent high-resolution land observation of selected areas.{{cite web|url=http://www.rotaryclubofbombay.org/speaker-gateway/indian-space-research-organisation-isro-indias-gateway-into-the-future.html|title=India's Gateway Into the Future|archive-url=https://web.archive.org/web/20170305002233/http://www.rotaryclubofbombay.org/speaker-gateway/indian-space-research-organisation-isro-indias-gateway-into-the-future.html|archive-date=5 March 2017|url-status=dead}}
Launch
It was launched by the Polar Satellite Launch Vehicle (PSLV), PSLV-C37, on 15 February 2017,{{cite web|url=http://www.isro.gov.in/launcher/pslv-c37-cartosat-2-series-satellite|title=PSLV-C37 / Cartosat-2 Series Satellite|publisher=ISRO|date=15 February 2017|access-date=11 May 2021|archive-date=16 February 2017|archive-url=https://web.archive.org/web/20170216144908/http://www.isro.gov.in/launcher/pslv-c37-cartosat-2-series-satellite|url-status=dead}} at 03:58 UTC along with two Indian nanosatellites (INS-1A and INS-1B) and 101 nanosatellites belonging to research facilities in the United States, Kazakhstan, Israel, the Netherlands, Switzerland, and the United Arab Emirates.
See also
References
{{Reflist|30em}}
{{IRS satellites}}
{{Indian spacecraft}}
{{Indian space programme}}
{{Orbital launches in 2017}}