EOS-05
 GISAT-1A in the clean room before encapsulation | |
| Names | EOS-05 / GISAT-1A |
|---|---|
| Mission type | Earth observation |
| Operator | ISRO |
| Website | https://www.isro.gov.in/ |
| Spacecraft properties | |
| Spacecraft | GISAT |
| Bus | I-2K |
| Manufacturer | ISRO |
| Launch mass | 1,117 kg (2,463 lb) |
| Start of mission | |
| Launch date | 4 September 2026 |
| Rocket | GSLV Mk II (F17) |
| Launch site | Satish Dhawan Space Centre, SLP |
| Contractor | ISRO |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geosynchronous orbit |
EOS-05 (also known as GISAT-1A) is an Earth observation satellite, which is the second satellite in the GISAT series made by ISRO. It is planned to be launched in 2026 using a GSLV Mk II rocket from Satish Dhawan Space Centre. The satellite aims to improve the existing remote sensing capabilities.[1][2][3]
Launch
GISAT-1A was planned to be launched from Satish Dhawan Space Centre.[4][5] It is now planned to be launched aboard the GSLV-F17 mission on 4 September 2026.[4]
Payload
GISATs will image in multi-spectral and hyper-spectral bands to provide near real-time pictures of large areas of the country, under cloud-free conditions, at frequent intervals which is, selected field image in every 5 minutes and entire Indian landmass image every 30 minutes at 42 metres (138 ft) spatial resolution.[6]
Features of GISAT-1A are:
- 700 mm Ritchey–Chrétien telescope based on the design of Cartosat-2A
- Array detectors in Visible and Near-InfraRed (VNIR), and Short Wave-InfraRed (SWIR) bands
- Electronically steerable, phased array antenna
- High agility, jitter-free platform
| Band | Channels | Ground Resolution(m) | Range(μm) |
|---|---|---|---|
| Multispectral (VNIR) | 6 | 42 | 0.45 – 0.875 |
| Hyperspectral (VNIR) | 158 | 318 | 0.375 – 1.0 |
| Hyperspectral (SWIR) | 256 | 191 | 0.9 – 2.5 |
References
- ↑ "GISAT-1, 2 (EOS-03, 05)". Gunter's Space Page. Retrieved 2 February 2026.
- ↑ "CEOS EO Handbook – AGENCY SUMMARY - ISRO". CEOS. October 2022. Retrieved 1 December 2022.
- ↑ "WMO OSCAR | Satellite: GISAT". space.oscar.wmo.int. Retrieved 26 November 2025.
- 1 2 "Isro to return to launchpad with Gisat-1A; lift-off likely on Sept 4". The Times of India. 28 August 2026. ISSN 0971-8257. Retrieved 30 August 2026.
- ↑ "ISRO gears up for GISAT-1A Launch; why is it significant?". @theweek. Retrieved 23 June 2026.
- ↑ "GSLV-F17/EOS-05 MISSION". www.isro.gov.in. Retrieved 30 August 2026.
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