Patent ID: 9618736
Date: 2017-04-11
CPC Classifications: G02B

Claim:
1. A method for changing a configuration of a telescope on board a space satellite to correct thermoelastic effects on performance parameters of the telescope, the method comprising: operating one of a dedicated computer and a computer of the space satellite to determine prior to a flight of the space satellite, a priori, a correction of the thermoelastic effects according to: establishing control messages during the flight according to the correction of the thermoelastic effects and operating correction means that change the configuration of the telescopic with the control messages to correct the performance parameters of the telescope, with the one of the dedicated computer and the computer of the space satellite; measuring in flight performance parameters of the telescope; receiving, with the one of the dedicated computer and the computer of the space satellite, a setting for an accuracy of the correction of the thermoelastic effects; determining a value of N with the one of the dedicated computer and the computer of the space satellite according to the setting for the accuracy, where N is an integer greater than or equal to 1; determining a difference between performance parameters of the model and corresponding in flight performance parameters from the measuring, with the one of the dedicated computer and the computer of the space satellite; and resetting the prior model in the one of the dedicated computer and the computer of the space satellite according to the difference, wherein the determining the difference and the resetting the prior model are carried out during the flight, every N orbits of the space satellite.