SpaceTentative

GSLV Mk II: IDRSS-1

expected 2027

expected 2027

—hype

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    Photo: Indian Space Research Organisation (ISRO) · GODL-India · via Wikimedia Commons

    Schedule updated. Previously Thursday, 1 January 2026.

    About this moment

    GSLV Mk II: IDRSS-1 is expected 2027. The exact day has not been announced yet.

    Indian Space Research Organization is preparing to launch IDRSS-1 on a GSLV Mk. II from 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. Launch is expected in 2027 and no firm date has been announced yet.

    This listing uses an approximate period. An exact day has not been confirmed.

    Where
    IndiaSatish Dhawan Space Centre, India

    Date source

    Launch Library 2

    Source last checked Oct 19, 2026

    Sources and attributions

    This is a public listing. If the date or details look wrong, tell us.

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