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Members |
Description |
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double dEphaf0; |
Clock phase offset coefficient units: sec, range: -9.766e-04 to +9.766e-04 |
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double dEphm0; |
Mean anomaly at reference time of week units: radians, range: -pi to +pi |
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double dEphe; |
Eccentricity of the satellite's orbit units: n/a, range: 0 to 0.03 |
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double dEphsqa; |
Square root of the transmitter's (sv) semi-major orbital axis. Assuming orbit is elliptical. this parameter is used to determine if the transmitter is ground-based. units: meters ** 0.5, range: 0 to 8192 |
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double dEphom0; |
(OMEGA)o - right ascension at reference time. units: radians, range: -pi to pi |
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double dEphi0; |
Io - Inclination angle at reference time. units: radians, range: -pi to +pi |
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double dEphw; |
w - argument of perigee. units: radians, range: -pi to +pi |
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double dEphomd; |
OMEGADOT - rate of right ascension. units: radians/second, -pi e-07 to +pi e-07 |
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double dEphtgd; |
Group delay time. accounts for time between the generation of the transmitter clock and its actual broadcast. units: seconds, range: -5.96e+08 to +5.96e+08 |
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double dEphaf2; |
Clock frequency drift coefficient. equal to 0 if almanac data. units: sec/sec*sec, -3.5e-15 to +3.5e-15 |
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double dEphaf1; |
Clock frequency offset coefficient. units: sec/sec, range: -3.72e-09 to +3.72e-09 |
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double dEphcrs; |
Crs - amplitude of the sine harmonic correction term to the orbit radius. units: meters, range: -1024e-4 to +1024 |
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double dEphmdn; |
Mean motion difference from computed value. equal to 0 if almanac data. units: radians/seconds,-11.6e-09 to +11.6e-09 |
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double dEphcuc; |
Crc - amplitude of the cosine harmonic correctio* term to the argument of latitude. equal to 0 if almanac data. units: radians, range: -6.1e-05 to +6.1e+05 |
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double dEphcus; |
Cus - amplitude of the sine harmonic correction term to the argument of latitude. equal to zero if almanac data. units: radians, range: -6.1e-05 to +6.1e-05 |
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double dEphcic; |
Cic - amplitude of the cosine harmonic correc- tion term to the angle of inclination. equal to 0 if almanac data. units: radians, range: -6.1e-05 to +6.1e-05 |
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double dEphcis; |
Cis - amplitude of the sine harmonic correction term to the angle of inclination. equal to 0 if almanac data. units: radians, range: -6.1e-05 to +6.1e-05 |
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double dEphcrc; |
Crc - amplitude of the cosine harmonic correc- tion term to the orbit radius. equal to 0 if almanac data. units: meters, range: -1024 to +1024 |
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double dEphidt; |
IDOT - rate of change of inclination angle. equal to 0 if almanac data. units: radians/second, -29.3e-10 to +29.3e-10 |
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long int lEphadc; |
Data set indicator number of ephemeris parameter which vary from curve fit to curve fit. equal to 0 if almanac data. units: seconds, range: 1 to 524288 this is hte same as AODE !!! |
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long int lEphtoc; |
The clock correction parameters af0,af1 and af2 define a curve used to correct the time sent from the satellite. the clock time is the reference point for which the curve is valid. units: seconds, range: 0 to 604800 |
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long int lEphtoe; |
Toe - gps time of week referenced from the start of the week. the middle of the fit interval from which calculations are based,for ephemeris data, this time is 2 or 3 hours after the start of the interval, depending on the length of the interval. if almanac data, this time is 3.5 days after the start of the week. units: seconds, range: 0 to 604800 |
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short int sEphfit; |
Duration of the interval over which the satellite's ephemeris fit (a segment of its orbital path) has been forecast. 0 = 4 hour segment forecast 1 = 6 hour segment forecast units: n/a, range: o or 1 |
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short int sEphwno; |
Gps week number broadcast by the transmitter or forecast by the almanac. units: weeks, range: 0 to 1023 |
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short int sEphacc; |
User range accuracy. units: n/a, range: 0 to 15 |
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short int sHealth; |
0 = sv signals ok 1 = c/a only 2 = l1 only 4 = sv useless |
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long int lEphaodc; |
Age of data clock - not required ?? |
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double dEphdeltan; |
Almanac parameter - not required |