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OCSE (IOSS)

OCSE Canister [L'Garde]

OCSE [L'Garde]

OCSE (Optical Calibration Sphere Experiment) or IOSS (Inflatable Optical Sphere System), a 3.5 m diameter inflatable sphere built by L'Garde Inc. for calibrating the lasers at the AFRL Starfire Optical Range.

The 0.48 m long 0.41 m diameter OCSE canister was ejected from the JAWSAT stack; 42 seconds later, with the canister clear of the other payloads, the canister door opened and 10  seconds after that inflation of the sphere began. The canister intentionally remained attached to the inflated sphere. Once inflated, the sphere's material becomes rigidized. OCS had a standard visible magnitude of +5 and required a dark sky for it to be observed.

After successfully completing its one year mission, the OCSE reentered the Earth's atmosphere on 5 March 2001.

Nation: USA
Type / Application: Experimental
Operator: U.S. Air Force Research Laboratory
Contractors: L'Garde Inc.
Equipment: ?
Configuration: 3.5 meter diameter kapton / aluminum balloon
Propulsion: None
Power: None
Lifetime: 1 year
Mass: 22 kg
Orbit: 807 km × 750 km, 100.2
Satellite COSPAR Date LS Launch Vehicle Remarks
OCSE (IOSS) 2000-004B 27.01.2000 Va CLF Minotaur-1 with JAWSAT, FalconSat 1, ASUSat 1, OPAL, MEMS 1A, MEMS 1B, STENSAT, JAK, Thelma, Louise