THEOS (Thailand Earth Observation System) is Thailand's remote sensing craft that was launched by a Russian Dnepr rocket from the Yasny space base in southern Russia at 06:37 UT on 2008 October 1. (It was delayed by many months due to a dispute with Kazakhstan which was unwilling to allow Dnepr rocket launches from Baikonur.) The 750-kg satellite carries a panchromatic imager with a resolution of 2 m and a multispectral (four bands in 450-900 nm range) imager with a resolution of 15 m to monitor the topography and vegetation. The initial orbital parameters were period 101.4 min, apogee 826 km, perigee 825 km, and inclination 98.78 degrees.
Facts in Brief
Launch Date: 2008-10-01
Launch Vehicle: Dnepr
Launch Site: Yasni, Russia
Mass: 750.0 kg