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A B C D E F G H I J K L M N O P Q R S T U V W X Z

Access Technique
Advanced Communications Technology Satellite (ACTS)
Advanced EHF (AEHF)
Aeronautical Mobile Satellite Service
Air Force Satellite Communications System (AFSATCOM)
Air Launch
Aloha
Amazon Leo
Antenna Gain
Antenna Pointing Loss
Antenna Subsystem
Apogee
Apogee Boost (Kick) Motor
Arab Satellite Communications Organization (ARABSAT)
Argument of Perigee
Ascending Node
Asia Cellular Satellite (ACeS)
Atmospheric Absorption Loss
Attitude
Attitude and Orbit Control (AOC) Subsystem
Attitude Control
Australian Launch Sites
Azimuth
Beam Forming
Beam Shaping
Beam-spreading Loss
Beamwidth
Bent-pipe Repeater
Bent-pipe Satellite
Block Code
Broadband Amplifier
Broadband Internet Satellite
Broadcast Satellite Service (BSS)
Bus
C-band
Cassegrain Antenna
Channel Coding
Code-division Multiple Access (CDMA)
Cold Welding
Communications Intelligence (COMINT) Satellites
Communications Moon Relay (CMR)
Communications Subsystem
Comsat
Constellation
Convolutional Code
Courier
Cross-Polarization Distortion
Crosslink
Cyberattack (Satellite Systems)
Cyclic Code
Cyclic Redundancy Check (CRC)
Debris
Defense Satellite Communications System (DSCS)
Demand-assigned Multiple Access (DAMA)
Descending Node
Digital Transparent Processor (DTP)
Direct Orbit
Direct-broadcast Satellite Service (DBS)
Doppler Effect
Doppler Shift
Down Converter
Downlink
E-band
Earth Station
Earth Station Antenna
Earth-coverage Beam
Eccentricity
Echo
Effective Isotropic Radiated Power (EIRP)
Electronic Intelligence (ELINT) Satellites
Elevation
Ellipso
Enhanced Polar System (EPS)
Ephemeris
Equatorial Launch Australia (ELA)
Equatorial Orbit
Eutelsat OneWeb
Explorer 1
Extremely High Frequency (EHF)
Fixed Satellite Service (FSS)
Fixed-assigned Multiple Access (FAMA)
Fleet Satellite Communications System (FLTSAT or FLTSATCOM)
Footprint
Forward Error Correction (FEC)
Free-space Loss
Frequency Coordination
Frequency Re-use
Frequency-division Multiple Access (FDMA)
G/T
G60 Starlink (Qianfan)
Gateway
geostationary Earth orbit (GEO)
Geostationary Transfer Orbit (GTO)
Geosynchronous Orbit
Gilmour Space Technologies
Global Beam
Global Broadcast System (GBS)
Globalstar
Gregorian Antenna
Ground Segment
Ground Station
Guowang (SatNet)
Hall-effect Thruster (HET)
High Altitude Platform Station (HAPS)
High Throughput Satellite (HTS)
High-altitude Nuclear Detonation
Highly Elliptical Orbit (HEO)
Honghu-3
Hub
ICO
Inclination
Indirect Orbit
Initial Defense Communications Satellite Program (IDCSP)
Initial Defense Satellite Communications System (IDSCS)
Inmarsat
Input Backoff (IBO)
Intelsat
Inter-satellite Link (ISL)
Interference
Intermediate Circular Orbit (ICO)
Intermediate Circular Orbit Satellite System (New ICO Satellite)
Intermodulation Distortion
International Telecommunication Union (ITU)
Iridium
Jamming
Ka-band
Kepler's Laws
Kessler Syndrome
Klystron
Ku-band
Kuiper Systems
L-band and S-band
LauncherOne
LEASAT
Lincoln Experimental Satellites (LES)
Line of Apsides
Link
Link 16
Link Budget
Link Margin
Look Angles
LOOPUS (Loops in Orbit Occupied by Unstationary Satellite) Orbit
low Earth orbit (LEO)
Low-noise Amplifier (LNA)
Magnetometer
MARISAT
Maritime Mobile Satellite Service
medium Earth orbit (MEO)
Megaconstellation
Mesh Network
Meteor
Meteorite
Meteoroid
Military Satellite Communications
Military Strategic, Tactical and Relay (Milstar) Satellites
Mission Extension Vehicle (MEV)
Mobile Satellite Internet
Mobile Satellite Service (MSS)
Mobile User Objective System (MUOS)
Molniya Orbit
Multibeam Antenna
Multiple Access
Multiple Channel per Carrier (MCPC)
Non-orthogonal Multiple Access (NOMA)
Non-synchronous Orbit
Non-synchronous Satellite
O3b
Onboard Processing
OneWeb
Open Cosmos (IRIS²)
Optus
Orbcomm
Orbit
Orbital Altitude
Orbital Elements
Orbital Height
Orbital Parameters
Orbital Period
Orbital Radius
Orbital Velocity
Outgassing
Output Backoff (OBO)
Ozone threat from De-orbiting Satellites
P-band
Parametric Amplifier
Perigee
Phased Array
Physical Destruction
Pointing Error
Polar Orbit
Polarization
Polarization Loss
Power Flux Density
Power Subsystem
Pre-assigned Multiple Access (PAMA)
Prograde Orbit
Project West Ford
Proliferated Warfighter Space Architecture (PWSA)
Propagation Delay
Q-band
Radome
Rain Attenuation
Rassvet
Rayleigh Fading
Reed-Solomon Code (RS Code)
Regenerative Payload
Regenerative Satellite
Relay
Retrograde Orbit
Right Ascension of the Ascending Node
Satellite Antenna
Satellite Broadband
Satellite Broadcasting
Satellite Bus
Satellite Constellation
Satellite Environment
Satellite Ephemeris
Satellite Frequencies
Satellite Internet
Satellite Navigation
Satellite Pager
Satellite Radio
Satellite Subsystems
Satellite System
Satellite Technology
Satellite Wireless Internet
Satellite-switched Frequency Division Multiple Access (SS-FDMA)
Satellite-switched Time Division Multiple Access (SS-TDMA)
Scintillation Loss
SCORE
Sea Launch
Semi-major Axis
Semi-minor Axis
Service Live Enhancement Program (SLEP)
Signals Intelligence (SIGINT) Satellites
Single Channel Per Carrier (SCPC)
Sky Muster
Skynet
Slant Range
Software-defined Satellite
Solar Flares
Solid-state Power Amplifier (SSPA)
Southern Launch
Space Debris
Space Machines Company (SMC)
Space Segment
Space Weather
Spacecraft
SPADE
Spatial Division Multiple Access (SDMA)
Spectrum Coordination
Spot Beam
Sputnik
Starlink
Station Keeping
Stratolaunch
Structural Subsystem
Sublimation and Vaporization
Submarine Launch
Subsatellite Point
Sun-transit Outage
Switched Satellite
Syncom
TACSAT
Telemetry
Telesat Lightspeed
Telstar
Thermal Control Subsystem
Thrust Subsystem
Thuraya
Time-division Multiple Access (TDMA)
Tracking and Data Relay Satellite System (TDRSS)
Tracking, Telemetry, and Command Subsystem (TT&C)
Transfer Orbit
Transponder
Traveling-wave Tube Amplifier (TWTA)
True Anomaly
Tundra Orbit
Tunnel-diode Amplifier
UHF Communications
UHF Follow-on (UFO)
Up Converter
Uplink
User Segment
User Terminal
USNS Kingsport
V-band
Van Allen Radiation Belts
Very Small Aperture Terminal (VSAT)
Viasat
Virgin Orbit's LauncherOne
W-band
Weapons Research Establishment Satellite (WRESAT)
Weather Loss
Wideband Global Satellite (WGS)
WRESAT
X-band
Zonal Beam

Glossary index / Orbital Elements

Orbital Elements

See: Orbital Parameters.

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