| Acronym | Meaning |
| IMP | Interface Message Processor ARPANET |
| ASP | Advanced Stokes Polarimeter |
| OSSE | Observing System Simulation Experiment |
| LOC | Lines Of Code |
| SCARAB | Scanner For Radiation Budget |
| ASQC | American Society For Quality Control |
| NPI | North Pacific Index |
| APS | Axial Power Shape |
| ELVD | Every Launch Vehicle Directorate |
| ERBI | Earth Radiation Budget Instrument |