Observing Systems Capability Analysis and Review Tool
Satellite Programme: Two Wide-angle Imaging Neutral-atom Spectrometers
Two-satellite programme for Space weather.
USA programme: NASA responsible of development and operation of the payloads, embarked as a Mission of Opportunity on the USAF satellites NROL-22 (National Reconnaissance Office, Launch-22).
The two satellites are actively stabilised over 3 axes.
The design lifetime is 2 years.
The two satellites are in coordinated Molniya orbits.
See detailed description at
Onboard stored and real-time data are downlinked to USAF stations.
The TWINS SOC (Science Operations Center) validates the data and produces higher-level products useful for scientific and educational purposes.
2006 - 2019
Associated satellites and instruments
Note: red tag => no longer operational , green tag => operational , blue tag => planned
Two Wide-angle Imaging Neutral-atom Spectrometers
TWINS (2 sats)
(2006 - 2019)