IDRSS-1
GSLV Mk. II · Indian Space Research Organization · Satish Dhawan Space Centre
- Launch (UTC)
- Dec 31, 2026, 00:00 UTC
- Outcome
- Date to be confirmed
- Rocket
- GSLV Mk. II
- Site
- Satish Dhawan Space Centre, India
The Indian Data Relay Satellite System (IDRSS) is a planned system of 2 geostationary data relay satellites by the Indian Space Research Organization (ISRO) for data relaying to and from other Indian satellites and launch vehicles to the ground, including supporting future Indian Human Spaceflight missions with the Gaganyaan spacecraft.