| Acronym | Meaning |
 | ESOC | European Space Operations Centre |
| GRS | Gamma Ray Spectrometer |
| OSC | Orbital Sciences Corporation |
| CIS | Commonwealth Of Independent States |
| HB | Horizontal Branch |
| HRI | High Resolution Imager |
| NSSDC | National Space Science Data Center |
| FRF | Flight Readiness Firing |
| NOCC | Network Operations Control Center |
| HV | High Voltage |
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