Mission type | Astrophysics |
---|---|
Operator | ESRO |
COSPAR ID | 1968-041A[1] |
SATCAT no. | 03233 |
Spacecraft properties | |
Launch mass | 89.8 kilograms (198 lb) |
Start of mission | |
Launch date | 17 May 1968, 02:06:00[2][1] | UTC
Rocket | Scout B |
Launch site | Vandenberg SLC-5 |
End of mission | |
Decay date | 8 May 1971, shortly after 03:00 UT |
Orbital parameters | |
Reference system | Geocentric |
Regime | Low Earth |
Perigee altitude | 326 kilometres (203 mi)[2] |
Apogee altitude | 1,086 kilometres (675 mi)[2] |
Inclination | 97.2 degrees[2] |
Period | 98.9 minutes[2] |
Epoch | 16 May 1968, 22:09:00 UTC[3] |
ESRO-2B or Iris (International Radiation Investigation Satellite; sometimes Iris 2[4]) or sometimes ESRO II (or ESRO 2), was a European astrophysical spin-stabilised research satellite which was launched in 1968. Operated by the European Space Research Organisation, ESRO 2B made astronomical surveys primarily in x-ray and solar particles detectors.[5]
GSP
was invoked but never defined (see the help page).