| Acronym | Meaning |
| HRTS | High-resolution Telescope Spectrograph |
| SCDUG | Scientific Computing Division Users Group Scelming |
| MIT | Massachusetts Institute Of Technology |
| PMS | Performance Measurement System |
| BBC | British Broadcasting Corporation |
| PAKIT | Photochemistry And Kinetics Of Important Trace Gases |
| DNS | Domain Name Service |
| SAI | Sudden Auroral Intensity |
| DPDC | Data Processing And Distribution Center |
| NAO | North Atlantic Ocean |