| Acronym | Meaning |
 | R | Rayleigh |
 | RASS | Radio Acoustic Sounding System |
 | TASI | Time-assingment Speech Interpolation |
 | ETCE | Effects Of Tropical Convection Experiment |
 | FAC | Friday Afternoon Club |
 | PP | Parts Per |
 | PA/CCC | Payload Accommodations/Carrier Control Center |
 | NBS | National Bureau Of Standards |
 | ESDD | Earth Science Data Directory |
 | APC | Argon Purge Cart |