| Acronym | Meaning |
 | IGB | International Geophysical Bulletin |
| MKS | Meter-kilogram-second System Of Measurement |
| ARD | Air & Radiation Division |
| NM | Network Management |
| ESA | Engineering Support Activity |
| TIDI | TIMED Doppler Interferometer |
| EQS | Equatorial Scatter |
| EISCAT | European Incoherent Scatter Radar System |
| EUROTRAC | European Experiment For Transporting And Transforming Environmentally Relevant Trace Construction In The Troposphere |
| RTN | Regional Telecommunications Network |
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