ESRO 1A (Aurorae) [ESA]
ESRO-1A / Aurorae (European Space Research Organisation) was a 80 kg, cylindrically shaped, solar-cell-powered spacecraft instrumented with seven scientific experiments chosen to measure a comprehensive range of auroral effects. The measurements include auroral luminosity, ionospheric composition and temperature, and the flux, type and energy spectra of trapped and precipitated energetic particles (electrons of energies 1 to 30,000 keV. The spacecraft was placed in a low polar orbit with its axis of symmetry magnetically aligned along the earth's field. It had operated satisfactorily for 18 months, except for the tape recorder which failed after 7 months.
ESRO 1B / Boreas conducted correlative studies with the identical satellite ESRO 1A / Aurorae.
Its experiements were:
|Type / Application:||Research|
|Contractors:||Laboratoire Central de Telecommunications|
|Power:||Solar cells, batteries|
|Orbit:||258 km × 1538 km, 93.7° (#1A); 291 km × 389 km, 86° (#1B)|
|ESRO 1A (Aurorae)||1968-084A||03.10.1968||Va SLC-5||Scout-B|
|ESRO 1B (Boreas)||1969-083A||01.10.1969||Va SLC-5||Scout-B|