THEOS-2
Thai Earth observation satellite launched in 2023
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THEOS-2 (Thailand Earth Observation System-2), is a Thai Earth observation satellite. The satellite would be capable of observing Earth's surface with a resolution of up to 50cm, and covering about 74,000 square kilometers per day.[1] THEOS-2 was launched by a Vega rocket from Guiana Space Centre in French Guiana on 9 October 2023.[2][3][4]
| Mission type | Earth Observation |
|---|---|
| Operator | GISTDA |
| COSPAR ID | 2023-155A |
| SATCAT no. | 58016 |
| Spacecraft properties | |
| Manufacturer | Airbus Defence and Space |
| Start of mission | |
| Launch date | 9 October 2023 |
| Rocket | Vega |
| Launch site | Guiana Space Centre |
| Contractor | Arianespace |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Sun-synchronous, LEO |
| Eccentricity | ≈0 |
The THEOS-2A small satellite, lost in the PSLV-C62 launch accident in 2026,[5] was planned to be part of the GISTDA's Development Survey Satellite System Project (โครงการระบบดาวเทียมสำรวจเพื่อการพัฒนา) together with THEOS-2.[6][7] Following THEOS-2, Thailand intends to build the THEOS-3 satellite completely domestically.[8]
