| Acronym | Meaning |
 | AXAF | Advanced X-ray Astrophysics Facility |
| ERBE | Earth Radiation Budget Experiment |
| UT | Universal Time |
| CM | Central Meridian |
| NASA | National Aeronautics And Space Administration |
| USAF | United States Air Force |
| RTG | Radioisotope Thermoelectric Generator |
| GUGK | Glavnoye Upravileniye Geodesii I Kartografii |
| MRSRM | Mars Rover And Sample Return Mission |
| MLI | Multi-Layer Insulation |
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