| Acronym | Meaning |
| CMB | Cosmic Microwave Background |
| SEPAC | Space Experiments With Particle Accelerators |
| SSCE | Solid Surface Combustion Experiment |
| NRSC | National Remote Sensing Centre |
| APM | Atmospheric Particle Monitor |
| MAS | Millimeter-wave Atmospheric Sounder |
| BMDO | Ballistic Missile Defense Office |
| ET | Ephemeris Time |
| FRC | Flight Research Center |
| DDTE | Design |