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NISAR

active
Earth ObservationLEOCOSPAR 2025-163ALaunched 7/30/2025
Admin Edit
Mission & Launch
Launch Mission
NISAR Mission
Launch Vehicle
GSLV Mk II c
Launch Date
7/30/2025
Orbit & Mass
Orbit Class
LEO
Altitude
741.5 km
Inclination
98.43 deg
Dry Mass
2,300 kg
Total Mass
2,393 kg
Payload Classification
Mission Type
Earth Observation
Payload Category
IMG-R
Payload Class
C
Organizations
Operator
Indian Space Research Organization (ISRO)
Manufacturer
Indian Space Research Organization (ISRO)
Registry
COSPAR ID
2025-163A
Track
Mentions
170
All verified mentions of this spacecraft in source documents.
0.0-5.0
Actions

NISAR is designed to revisit the same ground location every 12 days.

CapabilityValue 4.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

ISRO’s contribution to the NISAR project is estimated at approximately $90 million.

Financial
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Relationships
Value 4.0
Aug 4, 2025
A NASA-ISRO joint radar satellite finally launches

The ISRO contribution to the NISAR project is estimated at approximately $90 million.

FinancialGeneralValue 4.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

The NASA–ISRO partnership for NISAR was officially formed on September 30, 2014.

RelationshipsValue 4.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

The NISAR antenna reflector launched in a folded state and is constructed from a gold-plated mesh.

CapabilityValue 4.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

ISRO launched the NASA-ISRO Synthetic Aperture Radar (NISAR) satellite on July 30.

GeneralValue 4.6Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

It will take around 90 days for NISAR to become fully operational after launch.

PlanValue 3.5Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

With the NISAR launch, a GSLV Mk II vehicle placed a 2,392-kilogram satellite into a Sun-synchronous orbit at an altitude of 747 kilometers for the first time.

CapabilityGeneralValue 4.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

ISRO used a Geosynchronous Satellite Launch Vehicle Mark II (GSLV Mk II) to launch NISAR.

PlanGeneralValue 3.5Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

NISAR carries two radar instruments: an L-band radar provided by NASA and an S-band radar built by ISRO.

CapabilityValue 4.6Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

NISAR is expected to take around 90 days after launch to become fully operational.

PlanValue 3.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

The S-band radar on NISAR provides more accurate readings of shorter vegetation such as bushes and shrubs.

CapabilityValue 3.4Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

The development and launch of NISAR took about a decade from design and development to fruition.

GeneralPlanValue 2.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

NISAR will support detailed studies of subsidence, swelling, and movements linked to melting of glaciers and ice sheets in Greenland and Antarctica.

CapabilityGeneralValue 4.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

NASA had been considering development of Earth observation satellites like NISAR since 2007.

PlanValue 2.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

NASA’s contribution to the NISAR project is estimated at around $1.2 billion.

FinancialGeneralValue 4.2Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

NASA had been considering development of an L-band Earth observation radar since 2007 prior to the NISAR partnership.

PlanRelationshipsValue 3.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

The NASA–ISRO partnership for NISAR was officially forged on September 30, 2014.

RelationshipsValue 4.0Aug 4, 2025A NASA-ISRO joint radar satellite finally launches

The NISAR (NASA-ISRO Synthetic Aperture Radar) Earth observation satellite was expected to launch within a few months of the article’s publication.

PlanValue 2.8Jul 7, 2025The first Indian on the ISS

A GSLV Mk II is slated to launch the joint NASA-ISRO Synthetic Aperture Radar (NISAR) Earth observation satellite.

PlanGeneralValue 4.0Jun 4, 2025A pressing PSLV rocket failure and orbital congestion to brood over | Indian Space Progress #28