| AIDS |
Acquired Immune Deficiency Syndrome |
| CD |
Compact Disk |
| DCW |
Digital Chart of the World |
| DMA |
Defense Mapping Agency (U.S.) |
| D-SLR |
Digital-Single Lens Reflex |
| GPS |
Global Positioning System |
| IAU |
International Astronomical Union |
| IOTA |
International Occultation Timing Association |
| ISO |
International Organization for Standardization |
| JNC |
Jet Navigation Charts |
| NMEA |
National Marine Electronics Association |
| ONC |
Operational Navigation Charts |
| SASE |
Self Addressed Stamped Envelope |
| SDAC |
Solar Data Analysis Center |
| SEML |
Solar Eclipse Mailing List |
| SLR |
Single Lens Reflex |
| TDT |
Terrestrial Dynamical Time |
| TP |
Technical Publication |
| USAF |
United States Air Force |
| USGS |
United States Geological Survey |
| UT |
Universal Time |
| UV |
Ultraviolet |
| UVA |
Ultraviolet-A |
| WDBII |
World Data Bank II |
