Series of four satellites for technological development.
USA programme: DoD responsible of development and operations. Main units: OFT (Office of Force Transformation) and NRL (Naval Research Laboratory).
Platforms actively stabilised over 3 axes.
Design lifetime: 1 year.
Various orbits of various inclinations, circular or elliptical, low or high altitude.
The only flight unit with a payload of meteorological interest (a radio occultation sounder) is TacSat-2, in low-altitude, medium-inclination, drifting orbit.
See detailed description at
Data downlinked to DoD sites. Those of meteorological interest made available to NOAA.
2006 - 2007
Associated satellites and instruments
Note: red tag => no longer operational , green tag => operational
, blue tag => planned