Appendix C: Acronyms
ADCOM (USAF) Aerospace Defense Command
AFB Air Force Base
AFSPC Air Force Space Command
AFSSS Air Force Space Surveillance System (formerly NAVSPASUR)
AN/FPS-85 See FPS-85
Asc Ascending
BMEWS Ballistic Missile Early Warning System
CIS Commonwealth of Independent States (see also USSR)
Dsc Descending
ESA European Space Agency
ESRO European Space Research Organization
FPS-85 Phased-array UHF radar at Eglin AFB, Florida
GEO Geosynchronous Orbit (orbit category)
GEODSS Ground-based Electro-Optical Deep-space Surveillance System
JSC Johnson Space Center (NASA)
LEO Low Earth Orbit, up to 2000 km altitude (orbit category)
NASA National Aeronautics and Space Administration
NAVSPASUR Naval Space Surveillance System
NAVSPOC Naval Space Operations Center
NORAD North American Aerospace Defense Command
PARCS Phased-array UHF radar at Cavalier AFB, North Dakota: the Perimeter Acquisition Radar
Attack Characterization System
RAE The Royal Aerospace Establishment
R/B Rocket Body or Rocket Booster
RCS Radar Cross Section
RORSAT Radar Ocean Reconnaissance Satellite
RSO Resident Space Object
SATRAK PC compatible astrodynamics toolkit
SCC formerly Space Computational Center (obsolete); now Space Control Center
SOZ Sistema Obespechanya Zapuska (Proton-K Block DM attitude/ullage motor unit)
SSN Space Surveillance Network
TBE Teledyne Brown Engineering
TLE Two-Line Element Set
USSPACECOM United States Space Command