File Formats

ALMANAC.DAT

Example almanac entry:

****Week 794 almanac for PRN-01 ************

ID:01

Health:000

Eccentricity:3.414630890E-003

Time of Applicability(s):

380928.0000

Orbital Inclination(rad):

9.549833536E-001

Rate of Right Ascen(r/s):

-7.771752131E-009

SQRT(A) (m^1/2):

5153.589843

Right Ascen at TOA(rad):

8.032501489E-002

Argument of Perigee(rad):

-1.308424592E+000

Mean Anom(rad):

2.045822620E+000

Af0(s):

9.536743164E-007

Af1(s/s):

8.367351256E-011

week:

794

Almanac information for satellites with a bad health status will not be included in this file when downloaded from the GPS25 sensor and should not be included when uploading to the GPS25 sensor.

EPHEMERS.DAT

Example ephemeris entry:

**** Week 794. Ephemeris for PRN-18 **********

Ref Time of Clk Parms(s):

233504.000000

Ref Time of Eph Parms(s):

233504.000000

Clk Cor, Group Dly(s):

-8.280389E-006

Clk Correction af1(s/s):

-3.410605E-013

Clk Correction af2(s/s/s):

0.000000E+000

User Range Accuracy(m):

33.299999

Eccentricity(-):

5.913425E-003

SQRT(A) (m**1/2):

5.153628E+003

Mean Motion Cor(r/s):

4.710911E-009

Mean Anomaly(r):

6.033204E-001

Argument of Perigee(r):

1.418009E+000

Right Ascension(r):

3.520111E-002

Inclination Angle(r):

9.434418E-001

Rate of Right Asc(r/s):

-8.210699E-009

Rate of Inc Angle(r/s):

4.503759E-010

Lat Cor, Sine(r):

1.212582E-005

Lat Cor, Cosine(r):

2.004206E-006

Inc Cor, Sine(r):

-1.490116E-008

Inc Cor, Cosine(r):

-9.872019E-008

Radius Cor, Sine(m):

38.375000

Radius Cor, Cosine(m):

132.937500

Issue of Data :

184

34