GALFNAVEPHEMERIS

Decoded Galileo FNAV Ephemeris

Platform:

OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7, SMART2

The GALFNAVEPHEMERIS log contains the Galileo F/NAV ephemeris information. Multiple messages are transmitted, one for each satellite ID. The F/NAV messages are only transmitted on E5a.

Message ID: 1310

Log Type: Asynch

Recommended Input:

log galfnavephemerisa onall

ASCII Example:

#GALFNAVEPHEMERISA,USB1,21,35.5,SATTIME,2209,504150.000,02000020,02cd,16809;
2,0,0,0,0,68,107,0,501600,501600,1.94195529e+00,3.0676e-09,3.055053530e-04,
5.44060316e+03,9.740321573e-01,5.6931e-10,6.473214246e-01,3.503504077e-01,
-5.8141708e-09,7.6238e-06,4.7404e-06,2.409e+02,1.610e+02,-5.0291e-08,2.9802e-08
,2.989536151e-04,2.359002e-12,0.0,-6.985e-10*e65b02c5

#GALFNAVEPHEMERISA,USB1,20,35.5,SATTIME,2209,492700.000,02000020,02cd,16809;
3,0,0,0,0,52,107,0,492000,492000,-2.64850798e+00,3.4862e-09,3.018563148e-04,
5.44061768e+03,9.558740377e-01,-4.0323e-10,-1.45198786e+00,-4.689335290e-01,
-5.9263183e-09,-3.3025e-06,5.0087e-06,2.308e+02,-7.150e+01,1.8626e-09,
3.5390e-08,-5.578687415e-04,-3.907985e-12,0.0,3.260e-09*b13e7513

...

#GALFNAVEPHEMERISA,USB1,1,35.5,SATTIME,2209,504150.000,02000020,02cd,16809;
34,0,0,0,0,69,107,0,502200,502200,-1.35918661e+00,2.4115e-09,2.855090424e-04,
5.44061144e+03,9.978304990e-01,-5.8931e-11,2.72810277e+00,1.63000994e+00,
-5.1241420e-09,-4.7926e-06,1.3456e-05,6.991e+01,-1.037e+02,-3.9116e-08,
-3.5390e-08,-5.168793723e-04,-1.961098e-12,0.0,4.657e-09*3e6bf310

#GALFNAVEPHEMERISA,USB1,0,35.5,SATTIME,2209,504150.000,02000020,02cd,16809;
36,0,0,0,0,70,107,0,502800,502800,9.062661404e-01,2.4169e-09,2.578824060e-04,
5.44061532e+03,9.979634387e-01,-6.7860e-12,2.72986363e+00,2.260476454e-01,
-5.1745013e-09,-4.6510e-06,1.4180e-05,5.316e+01,-1.043e+02,8.0094e-08,
3.1665e-08,-3.731751349e-04,-5.456968e-12,0.0,6.286e-09*cfd6ad68

Field

Field Type

Description

Format

Binary Bytes

Binary Offset

1

Log header

GALFNAVEPHEMERIS header

For information about log headers, see ASCII, Abbreviated ASCII or Binary.

 

H

0

2

SatId

Satellite identifier

Ulong

4

H

3

E5aHealth

E5a health status bits

Uchar

1

H+4

4

E5aDVS

E5a data validity status

Uchar

1

H+5

5

Reserved

Uchar

1

H+6

6

Reserved

Uchar

1

H+7

7

IODnav

Issue of data ephemeris

Ushort

2

H+8

8

SISA Index

Signal in space accuracy (unitless)

Uchar

1

H+10

9

Reserved

Uchar

1

H+11

10

T0e

Ephemeris reference time (s)

Ulong

4

H+12

11

T0c

Clock correction data reference time of week from the F/NAV message (s)

Ulong

4

H+16

12

M0

Mean anomaly at ref time (radians)

Double

8

H+20

13

DeltaN

Mean motion difference (radians/s)

Double

8

H+28

14

Ecc

Eccentricity (unitless)

Double

8

H+36

15

RootA

Square root of semi-major axis

Double

8

H+44

16

I0

Inclination angle at ref time (radians)

Double

8

H+52

17

IDot

Rate of inclination angle (radians/s)

Double

8

H+60

18

Omega0

Longitude of ascending node of orbital plane at weekly epoch (radians)

Double

8

H+68

19

Omega

Argument of perigee (radians)

Double

8

H+76

20

OmegaDot

Rate of right ascension (radians/s)

Double

8

H+84

21

Cuc

Amplitude of the cosine harmonic correction term to the argument of latitude (radians)

Double

8

H+92

22

Cus

Amplitude of the sine harmonic correction term to the argument of latitude (radians)

Double

8

H+100

23

Crc

Amplitude of the cosine harmonic correction term to the orbit radius (m)

Double

8

H+108

24

Crs

Amplitude of the sine harmonic correction term to the orbit radius (m)

Double

8

H+116

25

Cic

Amplitude of the cosine harmonic correction term to the angle of inclination (radians)

Double

8

H+124

26

Cis

Amplitude of the sine harmonic correction term to the angle of inclination (radians)

Double

8

H+132

27

Af0

SV clock bias correction coefficient from the F/NAV message (s)

Double

8

H+140

28

Af1

SV clock drift correction coefficient from the F/NAV message (s/s)

Double

8

H+148

29

Af2

SV clock drift rate correction coefficient from the F/NAV message (s/s^2)

Double

8

H+156

30

E1E5aBGD

E1, E5a broadcast group delay

Double

8

H+164

31

xxxx

32-bit CRC (ASCII and Binary only)

Hex

4

H+172

32

[CR][LF]

Sentence terminator (ASCII only)

-

-

-