| Acronym | Meaning |
 | ATDRSS | Advanced TDRSS |
 | PPU | Peripheral Processor Unit |
 | ABRES | Advanced Ballistic Re-entry System |
 | OB | Optical Bench |
 | GRA | Graduate Research Assistant |
 | NCC | National Climate Center |
 | MR | Management Reserve |
 | AIDS | Activity Information Data Systems |
 | FTAM | File Transfer Access Management |
 | SCST | State Committee On Science & Technology |