MIL-STD-1809, MILITARY STANDARD: SPACE ENVIRONMENT FOR USAF SPACE VEHICLES (15 FEB 1991)
MIL-STD-1809, MILITARY STANDARD: SPACE ENVIRONMENT FOR USAF SPACE VEHICLES (15 FEB 1991)., The purpose and scope of this document is to state the parameters of the earth's natural environment, above 100 kilometers, for use in space vehicle and space system design.