| Acronym | Meaning |
 | SID | Sudden Ionospheric Disturbance |
| ENEA | Comitato Nazionale Per La Ricerca E Lo Sviluppo Dell' Energia Nucleare E Delle Energie Alternative |
| FIVRS | Financial Information Variance Reporting System |
| HB | Hard Black |
| MCBE | McIDAS Broadcast Evaluation |
| EBB | Equivalent Blockbody |
| ARM | Atmospheric Radiation Measurement Program |
| CAO | Central Aerological Observatory |
| GWP | Global Warming Potential |
| HYPERCHANNNEL | High-speed Communications Link |
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