Mission typeRadar imaging
COSPAR ID2019-028A
SATCAT no.4233
Mission durationPlanned: 5 years
Elapsed: 1 year, 5 months, 3 days
Spacecraft properties
Launch mass615 kilograms (1,356 lb)
Start of mission
Launch date20 May 2019, 05:30 (2019-05-20UTC05:30Z) UTC
RocketPSLV C46
Launch siteSatish Dhawan FLP
Orbital parameters
Reference systemGeocentric
Perigee altitude555 kilometres (345 mi)
Apogee altitude555 kilometres (345 mi)
Inclination37 degrees
Period93.00 minutes

RISAT-2B, or Radar Imaging Satellite 2B is an Indian radar reconnaissance satellite that is part of India's RISAT programme and the third satellite in the series. It is built by Indian Space Research Organisation (ISRO) to replace RISAT-2. It was successfully launched aboard a PSLV C46 rocket at 00:00 GMT on May 21, 2019 from the First Launch Pad at the Satish Dhawan Space Centre.[1][2]

RISAT-2B's main sensor is an indigenously developed Synthetic Aperture Radar (SAR) imaging satellite operating in X Band with 3.6 m radial rib antenna. The Satellite will be utilized for high resolution spot imaging of locations of interest and it has a mass of 615 kilograms (1355 lb).[3]


It can operate in different modes including Very High Resolution RADAR imaging modes of 1 m × 0.5 m resolution and 0.5 m × 0.3 m resolution. RISAT-2B is placed in an inclined orbit for better revisit rates over area of interest. Being a radar imaging satellite, it can image during day or night and in all weather conditions. The Satellite will be utilized for high resolution spot imaging of locations of interest.[4]

See also


  1. ^ May 22, U. Tejonmayam | TNN | Updated; 2019; Ist, 9:38. "PSLV-C46/Risat-2B mission a success, Isro places radar imaging earth observation satellite in orbit | India News - Times of India". The Times of India. Retrieved 2019-12-04.CS1 maint: numeric names: authors list (link)
  2. ^ "India Successfully Launches RISAT-2B Earth-Observation Satellite | Space". www-space-com.cdn.ampproject.org. Retrieved 2019-12-04.
  3. ^ "RISAT-2B: Radial Rib Antenna - ISRO". www.isro.gov.in. Retrieved 2019-12-04.
  4. ^ "Earth Observation Satellite RISAT-2B". pib.nic.in. Retrieved 2019-07-04.