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Satellite per Astronomia a raggi X, also called BeppoSAX


Designation 23857 / 96027A
Launch date 30 Apr 1996
Country of origin Italy and Netherlands (with the help of ESA)
Mission Scientific: high energy astrophysics ( X-ray astronomy)
Perigee/Apogee 581/605 km
Period ~ 97 min
Launch vehicle Atlas Centaur #100

As of Dec 2001 all gyros had failed (3 primary and 3 spares had failed by Sep 2001!). It now uses the 3 star trackers and orientates the satellite through the reaction wheels.

External resources


sat-index articles

End of life

Decay 29 Apr 2003

Technical data


Prime contractor Alenia Spazio
Mass at launch 1400 kg
Payload mass 490 kg
Diameter 2.7 m
Height 3.6 m
Solar array 9 m span (2 panels of 2.6 x 3.5 m)
Stabilization 3 axis
DC power EOL: 2300 W
Design lifetime 4 years


4 X-ray concentrators/spectrometers
2 wide-field X-ray cameras (WFC)
large area phoswich detector system (PDS)
high-pressure gas-scintillation proportional counter HPCPC)

command: 2 kbps, S-band
telemetry/data: 2245.500 MHz (16/131/917 kbps)
Other possible frequencies: 2067.5 MHz & 2245.24887 MHz

X-ray energy detection range 0.1-300 keV
Field of view WFC: 20 x 20 deg
others: 0.5-1.5 deg
Angular resolution WFC: 5 arcmin
others: ~ 1 arcmin

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