| Acronym | Meaning |
| OFAP | Observing Facilities Advisory Panel |
| APEX | APLE Prototype Experiment |
| FIFOLIB | N/A |
| ASC | ASTER Steering Committee |
| MELTER | Mesosphere/ Lower Thermosphere Explorer |
| FATS | Factory Acceptance Test Specification |
| BSRN | Baseline Surface Radiation Network |
| AL | Analytical Laboratory |
| AAW | Antiair Warfare |
| NCMRWF | India's National Centre For Medium Range Weather Forecasting |