GPS Navigation File Explanation


2              N                                             RINEX VERSION / TYPE
3SRINEXN       3SRINEX                 18-Apr-97 18:00       PGM / RUN BY / DATE
R100                                                         COMMENT
    9.3132e-09 -1.4901e-08 -5.9605e-08  1.1921e-07           ION ALPHA  
    9.6256e+04 -1.4746e+05 -1.3107e+05  9.1750e+05           ION BETA
   -9.313225746200e-10 8.881784197000e-15   589824      882  DELTA-UTC
    11                                                       LEAP SECONDS
                                                             END OF HEADER

_2 96       12    6   2   0   0.0 -3.146445378700e-04 -3.637978807100e-12 0.000000000000e+00
_9.200000000000e+01 6.143750000000e+01 5.021637742904e-09 -2.822725844843e+00
_3.054738044700e-06 1.605378929500e-02 3.721565008200e-06 5.153678703300e+03
_4.392000000000e+05 7.823109626800e-08 -2.631856873482e+00 -2.924352884300e-07
_9.571452696386e-01 -4.906250000000e+00 9.571452696386e-01 1.250052069700e-11
_2.585107680114e-09 0.000000000000e+00 8.820000000000e+02 0.000000000000e+00
_3.200000000000e+01 0.000000000000e+00 -2.328306436500e-09 9.200000000000e+01
_4.320060000000e+05 0.000000000000e+00 0.000000000000e+00 0.000000000000e+00
10 96       12    6   2   0   0.0 3.091990947700e-07 5.684341886100e-13 0.000000000000e+00
7.000000000000e+00 -3.750000000000e-01 4.820915096284e-09 -2.645536801844e+00
3.352761268600e-08 1.698388485200e-03 5.751848220800e-06 5.153680217700e+03
4.392000000000e+05 -5.587935447700e-09 5.463796836005e-01 5.587935447700e-09
9.615771814051e-01 2.710000000000e+02 -3.633249945094e-01 -8.219628094709e-09
2.260808457468e-10 0.000000000000e+00 8.820000000000e+02 0.000000000000e+00
3.200000000000e+01 0.000000000000e+00 -1.862645149200e-09 7.000000000000e+00
4.323060000000e+05 0.000000000000e+00 0.000000000000e+00 0.000000000000e+00


Any entry marked by an asterix (*) is an optional entry and may not be included.

RINEX VERSION/TYPE Format version (2) I6,14x, File type ('N' for Navigation Data) Al,19X

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PGM / RUN BY / DATE         - Name of program creating current file      A20,
                            - Name of agency creating current file       A20,
                            - Date of file creation                      A20

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*COMMENT                    Comment lines  (2)                          I6,14X

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*ION ALPHA                  Ionosphere parameters A0-A3 of almanac      2X,4D12.4
                            (page 18 of subframe 4)

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*ION BETA                  Ionosphere parameters B0-B3 of almanac      2X,4D12.4     

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*DELTA UTC: A0,A1,T,W      Almanac parameters to compute time in      3X,2D l9.12,
                           UTC (page 18 of subframe 4)                     219    
                           AO,Al: term of polynomial
                           T    : reference time for UTC data
                           W    : UTC reference week number

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*LEAP SECONDS              Delta time due to leap seconds            I6

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END OF HEADER              Last record in the header section.        60X

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2 96       12    6   2   0   0.0 -3.146445378700e-04 -3.637978807100e-12 0.000000000000e+00

Satellite PRN number

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2 96       12    6   2   0   0.0 -3.146445378700e-04 -3.637978807100e-12 0.000000000000e+00

Epoch: Toc - Time of Clock
year (2 digits)
month
day
hour
minute
second

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2 96       12    6   2   0   0.0 -3.146445378700e-04 -3.637978807100e-12 0.000000000000e+00

SV clock bias (seconds)
SV clock drift (sec/sec)
SV clock drift rate (sec/sec sq)

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    9.200000000000e+01 6.143750000000e+01 5.021637742904e-09 -2.822725844843e+00

IODE (Issue of Data, Ephemeris)

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    9.200000000000e+01 6.143750000000e+01 5.021637742904e-09 -2.822725844843e+00

Crs (meters)

Amplitude of the sine harmonic correction term to the orbit radius

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    9.200000000000e+01 6.143750000000e+01 5.021637742904e-09 -2.822725844843e+00

Delta n (radians/sec)

Mean motion difference from computed value

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    9.200000000000e+01 6.143750000000e+01 5.021637742904e-09 -2.822725844843e+00

Mo (radians)

Mean anomaly at reference time

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    3.054738044700e-06 1.605378929500e-02 3.721565008200e-06 5.153678703300e+03

Cuc (radians)

Amplitude of the cosine harmonic correction term to the argument of latitude

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    3.054738044700e-06 1.605378929500e-02 3.721565008200e-06 5.153678703300e+03

e (unitless)

Eccentricity

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    3.054738044700e-06 1.605378929500e-02 3.721565008200e-06 5.153678703300e+03

Cus (radians)

Amplitude of the sine harmonic correction term to the argument of latitude

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    3.054738044700e-06 1.605378929500e-02 3.721565008200e-06 5.153678703300e+03

sqrt(a) (sqrt(m))

Square root of the semi-major axis

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    4.392000000000e+05 7.823109626800e-08 -2.631856873482e+00 -2.924352884300e-07

TOE - Time of Ephemeris (seconds into GPS week)

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    4.392000000000e+05 7.823109626800e-08 -2.631856873482e+00 -2.924352884300e-07

Cic (radians)

Amplitude of the cosine harmonic correction term to the angle of inclination

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    4.392000000000e+05 7.823109626800e-08 -2.631856873482e+00 -2.924352884300e-07

OMEGA sub o

Longitude of ascending node of orbit plane at weekly epoch

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    4.392000000000e+05 7.823109626800e-08 -2.631856873482e+00 -2.924352884300e-07

Cis (radians)

Amplitude of the sine harmonic correction term to the angle of inclination

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    9.571452696386e-01 -4.906250000000e+00 9.571452696386e-01 1.250052069700e-11

io (radians)

Inclination angle at reference time

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    9.571452696386e-01 -4.906250000000e+00 9.571452696386e-01 1.250052069700e-11

Crc (meters)

Amplitude of the cosine harmonic correction term to the orbit radius

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    9.571452696386e-01 -4.906250000000e+00 9.571452696386e-01 1.250052069700e-11

omega (radians)

Argument of perigee

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    9.571452696386e-01 -4.906250000000e+00 9.571452696386e-01 1.250052069700e-11

OMEGA dot (radians/sec)

Rate of right ascension

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    2.585107680114e-09 0.000000000000e+00 8.820000000000e+02 0.000000000000e+00

IDOT (radians/sec)

Rate of inclination angle

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    2.585107680114e-09 0.000000000000e+00 8.820000000000e+02 0.000000000000e+00

Codes on L2 channel

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    2.585107680114e-09 0.000000000000e+00 8.820000000000e+02 0.000000000000e+00

GPS week# (to go with TOE)

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    2.585107680114e-09 0.000000000000e+00 8.820000000000e+02 0.000000000000e+00

L2 P data flag

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    3.200000000000e+01 0.000000000000e+00 -2.328306436500e-09 9.200000000000e+01

SV accuracy

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    3.200000000000e+01 0.000000000000e+00 -2.328306436500e-09 9.200000000000e+01

SV health (MSB only)

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    3.200000000000e+01 0.000000000000e+00 -2.328306436500e-09 9.200000000000e+01

TGD (seconds)

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    3.200000000000e+01 0.000000000000e+00 -2.328306436500e-09 9.200000000000e+01

IODC (Issue of Data, Clock)

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    4.320060000000e+05 0.000000000000e+00 0.000000000000e+00 0.000000000000e+00

Transmission time of message
(sec of GPS week, derived e.g.from z-count in Hand Over Word (HOW))

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    4.320060000000e+05 0.000000000000e+00 0.000000000000e+00 0.000000000000e+00

Spare

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