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CRO A, B, C

CRO B [NASA]

CRO (Chemical Release Observation) were small satellites to perform releases of different chemicals for observation by the IBSS-SPAS satellite.

The small satellites were powered by solar cells and deployed a radar reflector on a boom.

CRO A released 27.2 kg monomethyl hydrazine, CRO B released 23.6 kg of UDMH and CRO C released 6.8 kg of nitrogen tetroxide.

Data from these observations assisted SDIO in characterizing the signatures expected from liquid fuel clouds escaping from damaged ICBM boosters.

CRO A, B and C reentered on 13 May, 12 May and 14 May 1991 respectively.

Nation: USA
Type / Application: Chemical release in orbit
Operator: SDIO
Contractors: DSI
Equipment: ?
Configuration: PicoStar
Propulsion: ?
Power: Solar cells, batteries.
Lifetime:
Mass: 80 kg
Orbit: 229 km × 250 km, 56.99 (#A); 241 km × 258 km, 57.00 (#B); 218 km × 235 km, 56.99 (#C)
Satellite COSPAR Date LS Launch Vehicle Remarks
CRO A (CRO AM) 1991-031F 28.04.1991 CCK LC-39A Shuttle with Discovery F12 (STS 39), IBSS-SPAS, CRO B, CRO C, USA 70
CRO B (CRO BU) 1991-031E 28.04.1991 CCK LC-39A Shuttle with Discovery F12 (STS 39), IBSS-SPAS, CRO A, CRO C, USA 70
CRO C (CRO CO) 1991-031D 28.04.1991 CCK LC-39A Shuttle with Discovery F12 (STS 39), IBSS-SPAS, CRO A, CRO B, USA 70

References: