DATA DESCRIPTION
The SSI/ES is an improved version of the Special Sensor for Ions and Electrons (SSI/E). The SSI/E instruments
measured the ambient electron density and temperatures, the ambient ion density, and the average ion temperature and
molecular weight at the DMSP orbital altitude.
INSTRUMENT DESCRIPTION
The instrument consists of an electron sensor (Langmuir probe) and an ion sensor mounted on a 2.5 meter boom. The
ion sensor is a planar aperature, planar collector sensor oriented to face the spacecraft velocity vector at all times. In addition
to the Langmuir probe and planar collector which make up the SSI/E, the SSI/ES has a plasma drift meter and a scintillation
meter. An upgraded version of the SSI/ES (SSI/ES-2) is planned for flight on vehicles through S-20.
PROCESSING
Information unavailable at this time.
APPLICATIONS
Information unavailable at this time.
