| Acronym | Meaning |
| LRIR | Limb Radiance Inversion (or Infrared) Radiometer |
| DPH | Dew-point Hygrometer |
| ASE | Amplified Spontaneous Emission |
| MISR | Multiangle Imaging Spectroradiometer |
| AISC | Industry |
| CCAR | Colorado Center For Astrodynamics Research |
| NSB | National Science Board |
| PBL | Planetary Boundary Layer |
| APEX | Advance Purchase Excursion |
| ORU | Orbital Replacement Unit |