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GISAT-1A (EOS-05)

GSLV Mk II, flown by Indian Space Research Organization

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GSLV Mk II lifting off with the GISAT-1A (EOS-05) mission
Image via The Space Devs.

This is Indian Space Research Organization's 2nd launch of 2026, and its 100th in all.

Counting every operator, it is the 210th orbital launch attempt anywhere in 2026, and the first from Satish Dhawan Space Centre Second Launch Pad.

Launch time
Thursday, Sept. 3, 2026, 9:25 p.m. UTC
Window
Thursday, Sept. 3, 2026, 9:00 p.m. to Friday, Sept. 4, 2026, 1:00 a.m. UTC
Launch site
Satish Dhawan Space Centre, India
Rocket
GSLV Mk. II
Operator
Indian Space Research Organization

The mission

GISAT-1A (GEO Imaging Satellite) is an Indian earth observing satellite operating from geostationary orbit to facilitate continuous observation of Indian sub-continent, quick monitoring of natural hazards and disaster. EOS-05/GISAT-1A will replace EOS-03/GISAT-1 lost in launch failure in 2021.

Type
Earth science
Destination
Geostationary transfer orbit

The rocket

Geosynchronous Satellite Launch Vehicle Mark II (GSLV Mk II) is the largest launch vehicle developed by India, which is currently in operation. This fourth generation launch vehicle is a three stage vehicle with four liquid strap-ons. The indigenously developed cryogenic Upper Stage (CUS), which is flight proven, forms the third stage of GSLV Mk II. From January 2014, the vehicle has achieved four consecutive successes.

Height
49 m
Built by
Indian Space Research Organization
First flew
April 15, 2010
Lifts to geostationary transfer
2,500 kg
View 3 specifications Show less
Diameter
2.8 m
Mass at liftoff
401 t
Thrust at liftoff
7,420 kN

12 flights, 10 of them successful.

Wikipedia →

The operator

Indian Space Research Organization

The Indian Space Research Organisation (ISRO) is the space agency of the Government of India headquartered in the city of Bangalore. Its vision is to "harness space technology for national development while pursuing space science research and planetary exploration."

Sector
Government
Based in
India
Founded
1969
Run by
V. Narayanan, Chairman

99 launches so far, 84 of them successful.

isro.gov.in → Wikipedia →

The launch site

It goes up from Satish Dhawan Space Centre Second Launch Pad at Satish Dhawan Space Centre, India.

See the pad on a map →

Will you see it from where you live?

A launch that clears the horizon is visible for hundreds of miles. Flyby takes this rocket’s trajectory and your location and tells you whether it comes over you, when, and which way to face.

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