NISAR (NASA-ISRO Synthetic Aperture Radar)

Mission

NISAR (NASA-ISRO Synthetic Aperture Radar) on GSLV Mk. II. Wed 30 Jul 2025, 12:10 UTC. Reported outcome: Success. Launch site: Satish Dhawan Space Centre Second Launch Pad. Source: Launch Library 2.

The NASA-ISRO Synthetic Aperture Radar, or NISAR satellite, will use advanced radar imaging to map the elevation of Earth's land and ice masses 4 to 6 times a month at resolutions of 5 to 10 meters. It is designed to observe and measure some of the planet's most complex natural processes, including ecosystem disturbances, ice-sheet collapse, and natural hazards such as earthquakes, tsunamis, volcanoes and landslides. Under the terms of the agreement, NASA will provide the mission's L band synthetic aperture radar (SAR), a high-rate telecommunication subsystem for scientific data, GPS receivers, a solid-state recorder, and a payload data subsystem. ISRO will provide the satellite bus, an S band synthetic aperture radar, the launch vehicle, and associated launch services.

Mission type

Earth Science

Orbit

Sun-Synchronous Orbit

Launch timeline

Times are relative to liftoff.

1. T-5 sWed 30 Jul, 14:09 CEST

   Ignition

   Start of the engine ignition sequence

2. T-0Wed 30 Jul, 14:10 CEST

   Liftoff

   First upwards movement of the rocket

3. T+2 min 29 sWed 30 Jul, 14:12 CEST

   MECO

   Cut-off of the main engine

4. T+2 min 30 sWed 30 Jul, 14:12 CEST

   SES

   Start of the second engine

5. T+2 min 31 sWed 30 Jul, 14:12 CEST

   Stage 2 Separation

   Separation of the second stage from the first

6. T+2 min 51 sWed 30 Jul, 14:12 CEST

   Fairing Separation

   Separation of the payload fairing

7. T+4 min 50 sWed 30 Jul, 14:14 CEST

   SECO

   Cut-off of the second engine

8. T+4 min 53 sWed 30 Jul, 14:14 CEST

   Stage 3 Separation

   Separation of the third stage from the second

9. T+4 min 54 sWed 30 Jul, 14:14 CEST

   Stage 3 Ignition

   Third stage engine ignites.

10. T+18 min 21 sWed 30 Jul, 14:28 CEST

    Stage 3 Cutoff

    Third stage engine shuts down.

11. T+18 min 36 sWed 30 Jul, 14:28 CEST

    Payload Separation

    Final deployment of the payload from the rocket

Slip history

Changes recorded by Space Right Now

No changes since we started tracking on Sat 10 Oct 2026, 11:16 UTC.

Launch pad

Satish Dhawan Space Centre Second Launch Pad

Satish Dhawan Space Centre, India (IN)

Coordinates: 13.7199, 80.2304