Continuing Kepler's Quest: Assessing Air Force Space Command's Astrodynamics Standards (2012)
Chapter: Appendix B: Acronyms and Glossary
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Appendix A: Committee and Staff Biographical Information
Suggested Citation:
"Appendix B: Acronyms and Glossary." National Research Council. 2012. Continuing Kepler's Quest: Assessing Air Force Space Command's Astrodynamics Standards. Washington, DC: The National Academies Press.
doi: 10.17226/13456.
| AFSPC | Air Force Space Command |
| AIAA | American Institute of Aeronautics and Astronautics |
| AOF | Area Overflight—computes when overhead satellites can see a particular location on Earth; uses both SGP4 and SP for generation of ephemerides |
| ASW | astrodynamics support workstation |
| BATCHDC | Batch Differential Correction—performs a least-squares batch differential correction of orbital elements using tracking data and both the SGP4 and the SP propagator |
| C2 | Command and Control |
| CA | conjunction assessment |
| CAVENet | Command, Analysis, Verification and Ephemeris Network |
| CDD | Capability Development Document |
| CMAFS | Cheyenne Mountain Air Force Station |
| COMBO | Computation of Miss Between Orbits—computes close approaches between satellites using both SGP4 and SP for generation of ephemerides |
| CRD | Capstone Requirements Document |
| CSM | conjunction summary message |
| CTIPe | Coupled Thermosphere Ionosphere Plasmasphere Electrodynamics model |
| DMSP | Defense Meteorological Satellite Program |
| DTM-2000 | Drag Temperature Model, released in 2000; empirical model of thermospheric temperature, composition, and density |
| EKF | extended Kalman filter |
| ephemeris | a tabulation of computed positions and velocities (and/or various derived quantities such as right ascension and declination) of an orbiting body at specific times |
| ESA | European Space Agency |
Suggested Citation:
"Appendix B: Acronyms and Glossary." National Research Council. 2012. Continuing Kepler's Quest: Assessing Air Force Space Command's Astrodynamics Standards. Washington, DC: The National Academies Press.
doi: 10.17226/13456.
| FOV | field of view—determines times in which orbiting satellites fly through a ground-based observer’s conical field of view; can be defined by a constant azimuth and elevation, a constant right ascension and declination, or as a line of sight to another satellite; uses both SGP4 and SP for generation of ephemerides |
| FRD | Functional Requirements Document |
| GEO | geostationary orbit |
| GITM | Global Ionosphere-Thermosphere Model |
| GP | general perturbations |
| GSFC | Goddard Space Flight Center |
| HASDM | High Accuracy Satellite Drag Model |
| HEO | highly elliptical orbit |
| ICD | Initial Capabilities Document |
| IEEE | Institute of Electrical and Electronics Engineers |
| IOMOD | astrodynamics algorithm that computes an initial set of orbital elements from three observations |
| IR | infrared |
| ITAR | International Traffic in Arms Regulations |
| J70 | Jacchia 1970 empirical model of thermospheric density |
| JB2008 | Jacchia-Bowman 2008 empirical model of thermospheric density |
| JCD | Joint Capabilities Document |
| JMS | JSpOC Mission System |
| JSpOC | Joint Space Operations Center |
| LAMOD | astrodynamics algorithm that computes sensors’ (ground- or space-based) viewing opportunities (so-called look angles) for Earth-centered satellites; uses both SGP4 and SP for generation of ephemerides |
| MDA | Missile Defense Agency |
| MHT | multiple hypothesis tracking |
| MIT | Massachusetts Institute of Technology |
| MSIS | Mass Spectrometer Incoherent Scatter radar—series of models describing atmospheric temperature, composition, and density |
| NASA | National Aeronautics and Space Administration |
| NOAA | National Oceanic and Atmospheric Administration |
| NORAD | North American Aerospace Defense Command |
| NRLMSISE-00 | Naval Research Laboratory Mass Spectrometer Incoherent Scatter radar Extended—empirical model of atmospheric temperature, composition, and density, released in 2000 |
| NRO | National Reconnaissance Office |
| OCM | orbital conjunction message |
| ROTAS | Report/Observation Association—associates observations against satellite element sets |
| RSO | resident space object |
Suggested Citation:
"Appendix B: Acronyms and Glossary." National Research Council. 2012. Continuing Kepler's Quest: Assessing Air Force Space Command's Astrodynamics Standards. Washington, DC: The National Academies Press.
doi: 10.17226/13456.
| SEQDC | Sequential Differential Correction—performs a series of least-squares differential corrections that are computed in a sequential mode, which uses one or more observations or tracks while retrieving former covariance information from a prior differential correction; uses both SGP4 and SP for generation of ephemerides |
| SGP4 | Simplified General Perturbations 4—an analytic method of generating ephemerides for satellites in Earth-centered orbits |
| SMC | Space and Missile Systems Center |
| SOA | service-oriented architecture |
| SP | Special Perturbations—an algorithm that uses numerical integration to generate ephemerides for satellites in Earth-centered orbits |
| SPADOC | Space Defense Operations Center |
| SPK | a type of file that contains ephemeris (trajectory) data |
| SRP | solar radiation pressure |
| SSA | space situational awareness |
| SSN | Space Surveillance Network |
| TIE-GCM | Thermosphere Ionosphere Electrodynamics General Circulation Model |
| TIME-GCM | Thermosphere Ionosphere Mesosphere Electrodynamics General Circulation Model |
| TLE | two-line element |
| UCT | uncorrrelated track |
| UKF | unscented Kalman filter |
| USAF | United States Air Force |
| WACCM-X | Whole Atmosphere Community Climate Model, extended to the exobase |
| WAM | Whole Atmosphere Model |
| WGS-72 | World Geodetic Survey 1972 Earth gravity model |
| WGS-84 | World Geodetic Survey 1984 Earth gravity model |
Suggested Citation:
"Appendix B: Acronyms and Glossary." National Research Council. 2012. Continuing Kepler's Quest: Assessing Air Force Space Command's Astrodynamics Standards. Washington, DC: The National Academies Press.
doi: 10.17226/13456.
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