eph.doc

这是国外关于卫星导航方面一书的源代码

Ephemeris files S1EPH and S2EPH
----------------------------------
contain the following values; the sets due to the several satellites
are added sequentially. An example for one satellite:

              value  description
-------------------  ----------------------------------------------------------
                 31  PRN number of satellite
              36000  time of clock
  0.000514574814588  clock bias   (sec)
  4.24051904702E-11  clock drift  (sec/sec)
                  0  clock ageing (sec/sec**2)
               7.75  sin-harmonic corr. for geoc. dist. (meters)
  4.74948347318E-09  mean anomaly correction (rad/sec)
       1.2487210505  mean anomaly (rad)
  5.06639480591E-07  cos-harmonic corr. for arg.of per. (radians)
   0.00586182181723  eccentricity
  3.46824526787E-06  sin-harmonic corr. for arg.of per. (radians)
      5153.60967064  square root of semi-major axis (meters**1/2)
              36000  reference time for orbit (sec)
  3.16649675369E-08  cos-harmonic corr. for inclination (radians)
     0.314716093234  right ascension     (rad)
  1.19209289551E-07  sin-harmonic corr. for inclination (radians)
     0.963775575704  inclination angle   (rad)
           313.5625  cos-harmonic corr. for geoc. dist. (meters)
      0.67702188589  argument of perigee (rad)
 -8.48285353072E-09  rate of right ascension (rad/sec)
 -5.71452390616E-12  rate of inclination (rad/sec)
                817  week number
                  7  accuracy (meters)
                  0  health
-------------------  ----------------------------------------------------------
                                                              (c) iapg 1997 zeb