| Acronym | Meaning |
 | COBE | COsmic Background Explorer |
 | ET | Ephemeris Time |
 | LFC | Large Format Camera |
 | ELDO | European Launcher Development Organisation |
 | MMU | Manned Maneuvering Unit |
 | GMS | Geostationary Meterological Satellite |
 | IMO | International Meteor Organization |
 | PCG | Protein Crystal Growth Experiment |
 | ASI | Agenzia Spaziale Italiano |
 | SBIR | Small Business Innovation Research |