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const double | JD_EPOCH = 2440587.5 |
| | Julian date value for 1970-01-01 00:00:00+00.
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const double | JD_2000 = 2451545.0 |
| | Julian date value for 2000-01-01 12:00:00+00.
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const double | HOURS_TO_SECS = 3600.0 |
| | Number of seconds in 1 hour.
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const double | SECS_TO_HOURS = 2.777777777777778e-04 |
| | Number of hours in 1 second.
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const double | DAYS_TO_SECS = 86400.0 |
| | Number of seconds in 1 day.
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const double | SECS_TO_DAYS = 1.157407407407407e-05 |
| | Inverse of DAYS_TO_SECS.
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const double | CENTURIES_TO_DAYS = 36525.0 |
| | Number of days in 1 Julian Century.
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const double | DAYS_TO_CENTURIES = 2.737850787132101e-05 |
| | Inverse of CENTURIES_TO_DAYS.
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const double | SIDEREAL_DAY = 1.00273790935 |
| | The length of a sidereal day.
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const double | PI = 3.141592653589793 |
| | The mathematical constant, "pi".
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const double | TWO_PI = 6.283185307179586 |
| | The constant "pi" doubled for convenience.
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const double | DEGREES_TO_RADIANS = 0.0174532925199433 |
| | The number of radians in 1 degree.
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const double | RADIANS_TO_DEGREES = 57.29577951308232 |
| | The number of degrees in 1 radian.
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const double | REVS_TO_DEGREES = 360.0 |
| | The number of degrees in 1 revolution.
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const double | DEGREES_TO_REVS = 2.777777777777778e-03 |
| | The number of revolutions in 1 degree.
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const double | RPM_TO_RPS = 0.1047197551197 |
| | Conversion from RPM (revolutions per minute) to RPS (radians per second).
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const double | MU_EARTH = 3.9860044e5 |
| | Earth gravitational constant [km^3/sec^2].
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const double | MU_SUN = 1.32712438e11 |
| | Sun gravitational constant [km^3/sec^2].
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const double | MU_MOON = 4902.7934 |
| | Moon gravitational constant [km^3/sec^2].
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const double | RADIUS_EARTH = 6378.137 |
| | Earth equatorial radius in km.
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const double | RADIUS_SUN = 695990.00 |
| | Sun radius [km].
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const double | RADIUS_MOON = 1738.00 |
| | Moon radius [km].
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const double | FLATTENING_FACTOR = 0.0033528131 |
| | Flattening factor default value which is for the earth.
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const double | ARCSEC_TO_DEGREES = 2.777777777777778e-04 |
| | Number of arc seconds in one degree, equivalent to seconds in 1 hour (see above).
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const double | AUNIT = 149597870.691 |
| | Number of kilometers in one astronomical unit.
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const double | GAS_R = 8.31451 |
| | Universal gas constant.
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const double | SPEED_OF_LIGHT = 299792458. |
| | Speed of light (m/s)
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const double | BOLTZMANN = 1.3806488e-23 |
| | Boltzmann's constant (J/K)
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Physical and mathematical constants.
