|Mission type||Earth observation|
|Mission duration||5 years|
|Launch mass||120 kilograms (260 lb)|
|Start of mission|
|Launch date||7 May 2013, 02:06:31UTC|
|Rocket||Vega flight VV02|
|Launch site||Kourou ELA-1|
|Perigee altitude||690 kilometres (430 mi)|
|Apogee altitude||691 kilometres (429 mi)|
|Epoch||25 January 2015, 05:27:58 UTC|
VNREDSat-1 (short for Vietnam Natural Resources, Environment and Disaster Monitoring Satellite, also VNREDSat-1A) is the first optical Earth Observing satellite of Vietnam; its primary mission is to monitor and study the effects of climate change, predict and take measures to prevent natural disasters, and optimise the management of Vietnam's natural resources.
The VNREDSat-1 was built in Toulouse by EADS Astrium. During the project 15 Vietnamese engineers were integrated and trained by the Astrium team. The VNREDSat-1 system is based on the Astrium operational AstroSat100 satellite, used for the SSOT programme developed with Chile or the ALSAT-2 satellite system developed with Algeria. The 120 kg satellite will image at 2.5 m in panchromatic mode and 10 m in multi-spectral mode (four bands) with a 17.5 km swath, and will orbit at 600–700 km in a sun synchronous orbit.