| Acronym | Meaning |
 | OTFE | Oscillatory Thermocapillary Flow Experiment |
| LPV | Long Period Variable |
| S | Spiral (for Galaxies) |
| HIRIS | High Resolution Imaging Spectrometer |
| PC | ParseC (usu. Pc) |
| AFWTR | USAF's WTR |
| ACTS | Advanced Communications Technology Satellite |
| MRSRM | Mars Rover And Sample Return Mission |
| NASA | National Aeronautics And Space Administration |
| DPSS | DATA Processing Services Subsystem |
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