EOS-05, also known as GISAT-1A, is an ISRO Earth-observation satellite launched on 4 September 2026 by GSLV-F17, the 19th flight of India's Geosynchronous Satellite Launch Vehicle, from the Second Launch Pad at Satish Dhawan Space Centre, Sriharikota. ISRO describes it as India's first ever imaging satellite from Geosynchronous orbit. This page covers its launch, orbit-raising progress and tracking status; a live position is shown only once public orbital elements for it are available.
EOS-05 is catalogued as NORAD number 100607 (international designator 2026-202A). It was placed in a Sub-Geosynchronous Transfer Orbit and ISRO is raising it through a series of manoeuvres toward a geostationary slot at 85.5° East, so its altitude and ground position change substantially between element updates.
In an orbit being raised toward its geostationary slot at 85.5° East. EOS-05 (GISAT-1A) launched on 4 September 2026 into a Sub-Geosynchronous Transfer Orbit and ISRO has been raising it through a series of manoeuvres. Public orbital elements for it are not yet available through our data feed, so this page shows no live position rather than an estimate; tracking starts automatically once elements are published.
EOS-05 and GISAT-1A are the same satellite. EOS-05 is its Earth Observation Satellite series designation; GISAT-1A is the earlier GEO Imaging Satellite programme name. ISRO describes it as India's first ever imaging satellite from Geosynchronous orbit — an Earth-observation spacecraft that images from a near-fixed vantage point over the region rather than from a low polar orbit.
EOS-05 is catalogued as NORAD number 100607, with the international designator 2026-202A. Because the 5-digit NORAD catalogue filled up in 2026, 6-digit numbers are written in two-line element sets in 'Alpha-5' form, so 100607 appears as 'A0607' in the raw TLE.
It was placed in a Sub-Geosynchronous Transfer Orbit (Sub-GTO) — an elliptical orbit inclined about 19.3°, with a low perigee near 170 km and an apogee close to 29,000 km. After the first orbit-raising manoeuvre on 5 September 2026 ISRO reported an estimated orbit of about 20,000 km by 31,129 km. Further manoeuvres are planned to circularise the orbit at geostationary altitude and bring the satellite to its 85.5° East slot.
EOS-05 was launched by GSLV-F17, the 19th flight of India's Geosynchronous Satellite Launch Vehicle. The vehicle stood 51.7 m tall with a lift-off mass of 420.5 tonnes and a 4 m-diameter ogive composite payload fairing, flying a three-stage configuration: an S139 solid core with four L40H liquid strap-ons, a GL40HT liquid second stage, and a CUS15 cryogenic upper stage. Lift-off was from the Second Launch Pad at Satish Dhawan Space Centre, Sriharikota.
No. EOS-05 is not a naked-eye object. It is heading for geostationary altitude around 35,786 km, far too distant and faint to see without a telescope, and it is not designed to be visually observed. For satellites that are visible to the eye — the ISS, Tiangong, bright Starlink passes — see the satellites visible tonight pages.
Not confirmed. The satellite launched successfully on 4 September 2026 and ISRO has been raising its orbit toward the geostationary slot. ISRO has not declared it operational, and this page will not claim an operational status until an authoritative source does. Its lifecycle stage right now is 'launched' and 'in orbit, manoeuvring'.