Technical facts   SSETI Express       Dimensions 560 x 560 x 900 (maximum envelope) Mass 62 kg Mass of payload 24 kg Expected lifetime Minimum 2 months, extended mission until end of life Attitude Determination System Sun-sensors and magnetometer Attitude Control System Semi-passive magnetic stabilisation, plus a cold-gas payload On-board Data Transfer CAN. RS232 Telemetry -UHF -S-Band 437.250 MHz, 9.6 kb/s, AX 25 2401.84 MHz, 38.4 kb/s, AX25 Power - Average -Peak Body mounted solar panels 12 W 20 W Batteries Li Ion, 90 Wh Propulsion 6l, 300 bar, Nitrogen cold gas Camera ~100m/pixel, 1280*1024 pixels, CMOS Power Bes 28V regulated Thermal Control Passive       Last update: 5 September 2005 Related links  •  SSETI Association Homepage (http://www.sseti.net)  •  SSETI Express Mission student site (http://sseti.gte.tuwien.ac.at/WSW4/MOPWS/index.php)  •  SSETI Radio Amateur Connection (http://sseti.gte.tuwien.ac.at/WSW4/MOPWS/ham.php)