| Acronym | Meaning |
| MRIR | Medium Resolution Infrared Radiometer |
| GEO | Geosynchronous Earth Orbit |
| SSO | Spurious Shut-off |
| HCMM | Heat Capacity Mapping Mission |
| SNR | Signal To Noise Ratio / SuperNova Remnant |
| BATSE | Burst And Transient Source Experiment |
| SEP | Societe Europeenne De Propulsion |
| EURECA | European Retrievable Carrier |
| STC | Stennis Test Center |
| NS | Neutron Star |