NORAD North American Aerospace Defense Command
NRC National Research Council
NRO National Reconnaissance Office
 
OCM Orbit Conjunction Messages
OCT Office of the Chief Technologist
OD orbital debris
ODA orbital debris assessment
ODPO Orbital Debris Program Office
OMB Office of Management and Budget
ORDEM Orbital Debris Environment Model
ORSAT Object Reentry Survival Analysis Tool
OSTP Office of Science and Technology Policy
 
Pc probability of collision
PRA probabilistic risk analysis/assessment
PSFT Propulsion Systems Foundation Technology
PVDF polyvinylidene fluoride
 
RCS radar cross-section
RORSAT Radar Ocean Reconnaissance Satellite
 
SBM standard breakup model
SBRAM Satellite Breakup Assessment Model
SDA Space Data Association
SDC Space Data Center
SEM Size Estimation Model
SGP4 Simplified General Perturbations 4
SNR signal-to-noise ratio
SOCIT Satellite Orbital Debris Characterization Impact Test
SP special perturbations
SSN Space Surveillance Network
STD NASA Technical Standard
STSC UNCOPUOS Science and Technology Subcommittee
 
TLE two-line element set
TRL technology readiness level
 
UN United Nations
UNCOPUOS UN Committee on the Peaceful Uses of Outer Space
UNGA UN General Assembly
USAF U.S. Air Force
USSR Union of Soviet Socialist Republics
USSTRATCOM U.S. Strategic Command


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