BackForward Satellite: THEOS-1 

Satellite details
Acronym THEOS-1
Full name Thailand Earth Observation System - 1
Satellite Description
  • 1st flight unit of the THEOS programme.
  • Main mission: high-resolution land observation.
Mass at launch 750 kg Dry mass 670 kg
Power 840 W
Data access link no link provided
Data access information
  • Data available from GISTA.
Orbit Sunsynchronous orbit Altitude 822 km
ECT 10:00 desc


Space agency GISTDA
Status Operational
Details on Status
(as available)
  • Loss of Inertial Reference Unit-A. Switched to unit-B.
Launch 01 Oct 2008 EOL ≥2025
Last update: 2021-04-08
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on THEOS-1

Acronym Full name
MS Multispectral imager
PAN Panchromatic Imager
Show instrument status and calibration