Instruments
► General
- Launch: 23 August 2005 from Baikonur
- Orbit: Sun-synchronous
- Inclination: 98.6 deg
- Meridian: 12:50-0:50 LT
- Altitude: 610-670 km
- Orbital Period: 98.8 min
- Attitude: Three-axis stabilized, Sun-oriented (basically)
► Multi-Spectral Auroral Imaging Camera (MAC)
- Three independent cameras consisting of CCDs and interference filters for N2+ first negative band (427.8 nm), OI (557.7 nm), and N2 first positive band (670 nm) with a time resolution of 120-1000 msec for observation and 4040 msec for calibration.
► Electron/Ion Energy Spectrum Analyzer (ESA/ISA)
- Top-hat type electrostatic energy analyzers for electrons and ions of 10 eV/q to 12 keV/q divided by 15 (30) logarithmic steps, each of which takes 1.25 msec.