| BBSO | Big Bear Solar Observatory |
| BrA | Bridge Annex |
| CSO | Caltech Submillimeter Observatory (Mauna Kea, Hawaii) |
| Dow | Downs |
| EBr | East Bridge |
| JPL | Jet Propulsion Laboratory |
| Lau | Lauritsen |
| Mor | Morrisroe (IPAC) |
| OVRO | Owens Valley Radio Observatory |
| Pal | Palomar Observatory |
| Rob | Robinson |
| SBS | Santa Barbara Street (Observatories of the Carnegie Institution of Washington) |
| SMu | South Mudd |
| Sync | Synchrotron |
| WBr | West Bridge |