METHOD OF FORECASTING AND MAINTAINING SPACESHIP NORMAL OPERATION TERM Russian patent published in 2012 - IPC B64G1/28 B64G1/50 

FIELD: transport.

SUBSTANCE: invention relates to thermal control systems (TCS) mainly, of telecommunication satellite with duplicate fluid circuit. Spaceship incorporates also orientation and stabilisation system equipped with gas jet nozzles to generate control moments. Proposed method comprises defining resultant uncompensated kinetic spaceship moment in response to data of telemetry measurements of angular speeds in pitch, roll and yaw channels. Working gas flow rate is determined for particular operation in orbit to forecast spaceship normal operation term. Note here that said uncompensated kinetic moment and working gas flow rate are defined consecutively two times: in operation of both fluid lines and of only one of them. Compliance of thermal control system parameter with required uncompensated kinetic moment and term of spaceship normal operation with both fluid lines operating. If said parameter does not comply with required spaceship operation term in orbit, one of fluid circuits is cut out at definite stage of operation.

EFFECT: valid determination for forecasting and maintaining normal operation.

1 dwg