RISAT-1A

RISAT-1A
Names	Radar Imaging Satellite-1A; Earth Observation Satellite-4
Mission type	Imaging radar
Operator	ISRO
COSPAR ID	{{#property:P247}}
Website	www.isro.gov.in
Mission duration	5 years (planned)
Spacecraft properties
Spacecraft	RISAT-1A
Manufacturer	Indian Space Research Organisation
Launch mass	1,858 kg (4,096 lb)
Power	1850 watts
Start of mission
Launch date	NET 6 January 2022(Expected)
Rocket	Polar Satellite Launch Vehicle, PSLV-C52
Launch site	Satish Dhawan Space Centre, First Launch Pad (FLP)
Contractor	Indian Space Research Organisation
Orbital parameters
Reference system	Geocentric orbit
Regime	Sun-synchronous orbit
Perigee altitude	536 km (333 mi)
Apogee altitude	536 km (333 mi)
Inclination	97.84°
Period	96.50 minutes
Instruments
	Synthetic Aperture Radar (X-band) (SAR-X)
	Earth observation satellites series ← RISAT-2BR2 (EOS-01)

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Radar Imaging Satellite-1A, or RISAT-1A, is a planned remote sensing satellite as a follow on to RISAT-1 and with similar configuration. The satellite is being developed by Indian Space Research Organisation (ISRO) and it will be 6th in series of RISAT satellites. It will be a land based mission with primary application in terrain mapping and analysis of land, ocean and water surface for soil moisture.^[2]

Satellite description[edit]

Synthetic aperture radar can be used for Earth observation irrespective of the light and weather conditions of the area being imaged.^[3] The satellite will carry a C-band synthetic-aperture radar (SAR) and will have a liftoff mass of 1,858 kg (4,096 lb).^[1]

Payload metrics are defined by the following parameters and areas of study:

Category	Parameters
Land	Albedo and reflectance
	Soil moisture
	Vegetation
	Multi-purpose imagery
Ocean	Ocean topography/currents
Snow & Ice	Ice sheet topography
	Snow cover, edge and depth
	Sea ice cover, edge and thickness

Launch[edit]

RISAT-1A will be launched on the Polar Satellite Launch Vehicle (PSLV-C52). RISAT-1A is planned to be launched NET 6 January 2022.^[4]

References[edit]

↑ ^1.0 ^1.1 Reddy, O.V. Raghav (3 February 2016). "Future Earth Observation Missions of ISRO, NRSC User Interaction Meet 2016" (PDF). Archived from the original (PDF) on 3 February 2017.
↑ "CEOS Instrument: Synthetic Aperature Radiometer (RISAT)". Retrieved 9 February 2016.
↑ Raj, N. Gopal (25 April 2012). "RISAT-1's radar can see through clouds and work in darkness". The Hindu. Chennai, India.
↑ "SDSC-SHAR Website". shar.gov.in. Archived from the original on 16 July 2021. Retrieved 16 July 2021.

Template:RISAT satellites

Template:Rest of the World Reconnaissance Satellites

Template:India-spacecraft-stub

[UIM2016-1] 1.0 ^1.1 Reddy, O.V. Raghav (3 February 2016). "Future Earth Observation Missions of ISRO, NRSC User Interaction Meet 2016" (PDF). Archived from the original (PDF) on 3 February 2017.

[ceos_1-2] "CEOS Instrument: Synthetic Aperature Radiometer (RISAT)". Retrieved 9 February 2016.

[hindu-risat1radar-3] Raj, N. Gopal (25 April 2012). "RISAT-1's radar can see through clouds and work in darkness". The Hindu. Chennai, India.

[4] "SDSC-SHAR Website". shar.gov.in. Archived from the original on 16 July 2021. Retrieved 16 July 2021.

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Satellite description[edit]

Launch[edit]

See also[edit]

References[edit]