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Experiences from Thermal Balance Tests on Indian Remote Sensing Satellite (IRS-1A)
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English
Abstract
Prior to successful launch of IRS-1A, two different thermal balance tests were carried out, one on the Structure Thermal Model using heater pad technique and second on Engineering Model, using solar simulation technique. The temperature match was found to be better for extreme cold case in STM test and for EOL case in solar simulation test and not so good for other cases. An attempt was made to find out the reasons for this mismatch, but the exact reason could not be ascertained. The flight temperatures were predicted, based on solar simulation test data, which matches well with on orbit data.
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Citation
Barve, S., Bhandari, D., Kumar, G., Sundarraman, S. et al., "Experiences from Thermal Balance Tests on Indian Remote Sensing Satellite (IRS-1A)," SAE Technical Paper 901337, 1990, https://doi.org/10.4271/901337.Also In
References
- “Thermal control system of IRS-1A, CDR” Bhandari D.R. et al. June 1986
- “Thermal balance test plan report on IRS-1A structure/thermal model” Testing Section TSD January 1986
- “Thermal heater scheme for EOL case solar simulation thermal balance test and T.V. performance test on IRS-1A Engg. model” Kumar Dinesh et al. TSD July 1986
- “Program overview and In-orbit performance evaluation of INTELSAT-V spacecraft Thermal Control Subsystem” Kelly W.H. et al AIAA Thermophysics June 27-29 1988
- “Thermal control system of IRS-1A” Bhandari D.R. et al. TSD January 1988