| Acronym | Meaning |
 | ISO | Imaging Spectrometic Observatory |
| SIRTF | Space InfraRed Telescope Facility |
| FAP | Freedom Attached Payloads |
| HAINS | High Accuracy Inertial Navigation System |
| DESAT | Desaturation |
| SAMPEX | Solar Anomalous And Magnetospheric Particle EXplorer |
| DLR | Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt |
| SETI | Search For ExtraTerrestrial Intelligence |
| ESOC | European Space Operations Centre |
| TIG | Time Of (until) Ignition |
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