Satellite thermal control ensures safe operating temperature ranges for satellite components throughout the mission life. Effects of altitude, spin, and position of satellite radiator(s) on the thermal control of a small Low Earth Orbit (LEO) satellite have been studied. Results show that change in satellite altitude, in the range considered here, does not produce critical thermal conditions. However, satellite spin rate has a marked influence on the satellite temperatures. Also, comparison of results for the satellite configurations considered in this study suggests that a radiator at top provides better thermal design conditions. Results also indicate the adequacy of the discussed considerations for use in the design of satellites of similar configurations, missions and orbital parameters.


[1] Gilmore, D.G., Spacecraft Thermal Control Handbook, Vol. I: Fundamental Techniques, The Aerospace Corporation Press, 2002.
[2] Griffin, M.D. and French., J.R., Space Vehicle Design, Copyright© AIAA, Washington, DC, 1991.
[3] Martin, D., Parametric Models and Optimization for Rapid Thermal Design, MicroSat Systems Inc., Copyright© SAE International, 2004.
[4] Earth's Thermal Environment, Thermal Environments,  JPL D-8160, K&K Associates, 2008.
[5] Orbit Definition, Structural Dynamics Research Corporation, 2001.
[6] Abouel-Fotouh, A.M, Elsharkawy, A.I., Shabaka, I. and Elfar, A., “The Effect of Satellite Orientation on Satellite Surface Temperature Distributions”, Journal of Applied Sciences Research, Vol. 2, No.12, 2006, pp.1286-1292.
[7] Method for the Calculation of Spacecraft Umbra and Penumbra Shadow Terminator Points, NASA Technical Paper 3547, 2002.
[8] Wertz, J.R. and Wiley J.L., Space Mission Analysis and Design, Microcosm Press, El Segundo CA, 1999, pp. 428-458.
[9] Eakman, D., Lambeck, R. and Slofer, L., Jr., Small Spacecraft Power and Thermal Subsystems, NASA Contractor Report 195029, Contract NASI-19244, Task 15, 1994.
[10]Silverman, E. M., Space Environmental Effects on Spacecraft: LEO Materials Selection Guide, NASA Contractor Report 4661, Parts 1 and 2, Prepared for Langley Research Center, 1995.
[11]Petrof, R.C. and Raynor S., “The Temperature Distribution in Rotating Thick-Walled Cylinders Heated by Radiation”, International Journal of Heat & Mass Trans., Vol. 11, Issue 3, 1968, pp. 427-438.
[12]Gadalla, M.A., “Analytical Modeling of Thermal Analysis of Rotating Space Vehicles Subjected to Solar Radiation”, Trans. Energy Conversion, American Chemical, 1993.
[13]Olmstead, W.E. and Raynor S., “Solar Heating of a Rotating Solid Cylinder”, Quarterly of Applied Mathematics, 1963, pp. 81-90.
[14]Nichols, L.D., Surface Temperature Distribution on Thin-walled Bodies Subjected to Solar Radiation in Interplanetary Space, NASA Technical Note D-584, USA, 1961.
[15]Gadalla, M. “Prediction of Temperature Variation in a Rotating Spacecraft in Space Environment,” Applied Thermal Engineering, Vol. 25, No. 14-15, 2005, pp. 2379-2397.
[16]Anvari, A., Farhani, F., Entezari, M.H. and Niaki, K.S., “Modeling and Thermal Analysis of Satellite Solar Panels”, The 8th Iranian Aerospace Society Conference (IAS2009), Malek-E-Ashtar University, Esfahan, Iran, 2009, (In Persian).
[17]Design of Hardware and Software for the Power Supply for AAU CubeSat, Appendix B, Group 02gr 733, 2002.
[18]Karam, R.D., Satellite Thermal Control for Systems Engineers, Vol. 181, Progress in Astronautics and Aeronautics, AIAA, Virginia, USA, 1998.
[19]Baturkin, V., “Micro-Satellite Thermal Control Concepts and Components”, ACTA Astronautica, Vol. 56, No.1-2, 2003, pp. 161-170.
[20] Galski, R.L., de Sousa, F.L., Ramos, F.M. and Muraoka, I., “Spacecraft Thermal Design with the Generalized External Optimization Algorithm,” Inverse Problems, Design and Optimization Symposium, Rio de Janeiro, Brazil, 2004.
[21]SINDA/FLUINT User’s Manual, Version 4.4, Cullimore and Ring Technologies Inc., 2001.
[22]Panczak T.D., Thermal Desktop, Version 4.4, Cullimore and Ring Technologies Inc., 2001.
[23]Badari and Venkata Reddy, “Thermal Design and Performance of HAMSAT,” Acta Astronautica, Vol. 60, Issue 1, 2007, pp. 7-16.