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SGP4
[SGPpos, SGPvel, SGPvals] = SGP4(SGPinp, elapseTime);
Implementation of the NORAD low orbit satellite position and velocity propagator. Time samples are vectorized for quick generation, but the satellite ephemeris data is not.
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Parameters |
Description |
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SGPinp [struct] |
Processed TLE data, the output of SGPPrep |
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elapseTime [array] |
Elapse Time from ephemeris epoch (min) |
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Return Values |
Description |
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SGPpos [struct] |
Satellite's Cartesian position (ER) |
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SGPvel [array] |
Satellite's Cartesian velocity (ER/min) |
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SGPvals [array] |
Contains useful deepspace quantities |
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SGPvals.n0dprime [scalar] |
Recovered original mean motion (rad) |
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SGPvals.a0dprime [scalar] |
Recovered original semimajor axis (ER) |
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SGPvals.perigee [scalar] |
Perigee (km) |
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Copyright (c) 2009. All rights reserved.
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Description