| Acronym | Meaning |
| SSPO | Space Shuttle Program Office |
| APT | Automatic Photoelectric Telescope |
| TOMS | Total Ozone Mapping Spectrometer |
| HGA | High Gain Antenna |
| DOE | Department Of The Environment |
| LST | Local Sidereal Time |
| ROSAT | ROentgen Satellite |
| APM | Atmospheric Particle Monitor |
| IKI | Institut Kosmischeskikh Issledovaniya |
| FIR | Far InfraRed |