| Acronym | Meaning |
| TIROS | Television InfraRed Observation Satellite |
| BATSE | Burst And Transient Source Experiment |
| MODE | Middeck Zero-Gravity Dynamics Experiment |
| MS | Main Sequence |
| MOMS | Modular Optoelectronic Multispectral/Stereo Scanner |
| SIXA | Silicon X-ray Array |
| ENAP | Energetic Neutral Atom Precipitation |
| HDE | Henry Draper Extension |
| TPCE | Tank Pressure Control Experiment |
| RNGC | Revised New General Catalog |