SJ 2B [CAST]
SJ 2B (Shi Jian 2B) was a passive radar calibration satellite.
The SJ-2B payload consisted of a 4 m diameter balloon satellite, which was tethered by a 600 m long silk tether to a 45 cm metal sphere.
SJ 2B was launched as one of three payloads on a FB-1 rocket in September 1981. An earlier launch failure in July 1979 reportedly carried the same payloads.
|Type / Application:||Technology|
|Configuration:||Balloon tethered to sphere|
|Orbit:||232 km × 1608 km, 59.4º|
|SJ (2B)||1979-F02||27.07.1979||Jq LC-2/138||F||FB-1||with SJ (2), SJ (2A)|
|SJ 2B||1981-093A||19.09.1981||Jq LC-2/138||FB-1||with SJ 2, SJ 2A|