| Acronym | Meaning |
| G&A | General And Administrative |
| APEX | Advance Purchase Excursion |
| MARC | Middle Atmosphere Responses To Changes |
| SPL | SLATEC Plotting Library |
| RDC | Regional Data Center |
| LOTUS | Lower Thermosphere And Upper Stratosphere |
| IV&V | Independent Verification And Validation |
| NESS | National Earth Satellite Service |
| TIAA | Teachers Insurance And Annuity Association |
| AIRS | Atmospheric Infrared Sounder |