Cheatography
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Space Mission Areas
Force Enhancement |
Support |
Control |
Force Application |
Components of EOP
Universal Time |
Coordinates of the Pole |
Celestial Pole Offsets |
Astrometry
Relates to Precise Measurements and explanations of the positions and movements of stars and other celestial bodies |
Atmospheric Drag
Causes Satellite Errors |
Results from Expansion of Atmosphere |
Atmsophere expands due to Bombarding of charged Particles |
Space Situtational Awareness - SSA
Current and predictive Knowledge of everything happening in the space environment relating to space operations |
Geosynchronous Orbit
A satellite that completes one revolution per day (e.g. the moon) |
Ineffective at the Poles |
Used for some communications |
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the Sun
Fueled by Nuclear Fusion |
Has the biggest effect on the Space Env't |
By-product is Electromagnetic Radiation |
By-product is Electrically Charged Particles |
Network Synchronization
Keeps GPS computers automatically updated and on the exact same time |
Key Objectives of SSA
Ensure Space Operations and Spaceflight Safety |
Implement Int'l Treaties and Agreements |
Protect Space Capabilities |
Protect Military Operations and Nat'l Interests |
Disadvantages of Space ISR
Access Limitations |
Predictable Fly-over Schedule |
Atmospheric Disturbances & Weather |
Administrative Limitations |
Polar Orbit
Passes over the Entire surface of the Earth |
Imagery Satellites |
90 degree inclination |
Low Earth Orbit - LEO
150 to 800 miles above the Earth |
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2 Space Launch Facilities
Vandenberg Air Force Base, California |
Cape Canaveral Kennedy Space Center, Florida |
Advantages of Space ISR
Coverage of AOIs w/o detection and w/o sanctions |
More Precise Targeting |
Enhanced Planning from Imagery |
Medium Earth Orbit - MEO
22, 300 miles above the Earth |
Between LEO and GEO orbits |
Offer better Round-trip Time than GEO satellites |
Components of SSA
Intelligence |
Surveillance |
Reconnaissance |
Environmental Monitoring |
Space Common Operating Picture |
GPS Satellites
21 Active, 3 Spare |
Each contains: Computer, Atomic Clock, Radio |
Receiver on the Ground Triangulates w/ 3 Satellites |
Solar Winds
Stem from the Sun's Corona and are Responsible for Geomagnetic Storms that: Knock out Power Grids and cause the Auroras |
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Global Positioning System - GPS
Global Navigation Satellite System |
Advantages of GPS
Accuracy |
Accessibility |
Graceful Degradation |
Jamming |
Anti Spoofing |
High Earth Orbit - HEO
Higher than 22,300 miles above the Earth |
Useful for Communications Satellites |
Van Allen Radiation Belts
Impacts Comms Satellites in Geosynchronous Satellite Orbit |
Earth Orientation Parameters - EOP
Describes Earth's Irregularities due to uneven rotation by providing Earth's rotation as a function of time |
Solar Cycle
11 year Cycle |
4 year Rise to Maximum |
7 year Decline to Minimum |
Geo-location
Wireless detection of the physical location of a remote device |
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