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TD 1A

TD 1A - ESA Satellite

TD-1 was ESROs most ambitious satellite project of that era, carrying a large and complex scientific payload to survey the whole sky in ultraviolet, X-rays and gamma-rays, monitor heavy cosmic ray nuclei and measure X/gamma-rays from the Sun.

TD 1A Mission Information

Mission Details

NameTD 1A
TypeSatellite
Launch DateMarch 12, 1972
Launch SiteVandenberg AFB, United States
ContractorEngins Matra (prime), ERNO (structure, thermal control, housekeeping subsystems), Saab (communications), HSD (power supply, gyros)

Satellite Details

Scientific InstrumentTelescope/Spectrometer, Cerenkov detector, Spectrometry of 2-30 keV celestial X-rays, Solar Gamma-rays (50-500 MeV), CsI scintillation crystal, Spark chamber, Vidicon camera, particle counters and Cerenkov counter
Mass473 Kg

Orbit Information

OrbitSun-synchronous Orbit
Orbital Altitude531 x 539 Km
Orbital Inclination95.3 Degrees

Space Organization Details

OrganizationESA
ContinentEurope
CountryFrance
View details on the ESA website
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