JPL GNSS Products
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xfile format

Format

  • CHI^2 = Value
  • DOF = Value
  • CHI^2/DOF = Value
  • RX = Value +- Sigma rad
  • RY = Value +- Sigma rad
  • RZ = Value +- Sigma rad
  • TX = Value +- Sigma m
  • TY = Value +- Sigma m
  • TZ = Value +- Sigma m
  • S = Value +- Sigma parts
  • RX RATE = Value +- Sigma rad/yr
  • RY RATE = Value +- Sigma rad/yr
  • RZ RATE = Value +- Sigma rad/yr
  • TX RATE = Value +- Sigma m/yr
  • TY RATE = Value +- Sigma m/yr
  • TZ RATE = Value +- Sigma m/yr
  • S RATE = Value +- Sigma parts/yr

Comments

  • Suggested suffix is .x
  • White space delimited
  • Rate parameters are optional
  • Residuals and WRMS values given below the last parameter
  • POS NAME ResidN ResidE ResidV SigmaN SigmaE SigmaV mm
  • POS WRMS WRMSN WRMSE WRMSV mm
  • VEL NAME ResidN ResidE ResidV SigmaN SigmaE SigmaV mm/yr
  • VEL WRMS WRMSN WRMSE WRMSV mm/yr
  • Comments and blank lines permitted below the last parameter
  • Transformation parameters from the reference file to the input file
  • Reference file and input file typically include positions for many sites with covariance
  • Information is weighted according to covariance

Example

 CHI^2      =  2.9295e+02
 DOF        =         107
 CHI^2/DOF  =        2.74
 RX =   8.510e-10  +-   7.123e-11  rad
 RY =  -7.769e-10  +-   6.337e-11  rad
 RZ =   9.606e-08  +-   7.125e-11  rad
 TX =  -1.284e-02  +-   9.993e-04  m
 TY =   7.473e-04  +-   9.892e-04  m
 TZ =  -2.679e-03  +-   1.036e-03  m
 S  =  -6.513e-10  +-   2.856e-10  parts

 RES NAME          N          E          V         SN         SE         SV
 POS ALIC      1.427     -5.907    -11.864      2.691      2.702      8.164 mm
 POS AMC2      0.158      2.216      3.484      2.683      2.472      8.313 mm
 POS ARTU     -0.154      2.703      2.545      3.227      2.400      9.067 mm
 POS AUCK      0.547     -3.476     -2.054      3.074      2.808      8.373 mm
 POS BRST     -5.007      2.905      4.157      3.005      2.554      8.077 mm
 POS CHUR      1.069      1.096      5.085      2.784      2.152      7.278 mm
 POS GLPS      3.709     -3.408    -10.522      2.491      2.861      9.064 mm
 POS GUAM     -7.099     10.441    -12.542      2.838      3.029     12.207 mm
 POS HLFX      0.909     -1.300     -7.624      2.842      2.155      8.104 mm
 POS HOB2     -2.384     -3.898    -20.832      2.933      2.395      7.210 mm
 POS IISC     -4.739      3.699     -2.838      2.952      3.620     12.541 mm
 POS INVK      0.707      0.334      1.904      2.784      2.321      8.917 mm
 POS IRKJ     -0.840      1.723     22.977      3.015      2.262      8.140 mm
 POS KERG     -4.591     -7.705     12.810      3.138      2.762      7.685 mm
 POS KOKB      5.648     -1.347     -6.433      2.580      2.738      8.836 mm
 POS MAR6     -0.384      0.987      9.524      3.371      2.394      9.837 mm
 POS MAW1      6.498     -4.646      2.450      3.580      3.032     10.561 mm
 POS MCIL     12.228     -8.112      3.010      2.701      2.636      8.936 mm
 POS MCM4     -3.253     -6.929     24.087      3.078      2.787     12.164 mm
 POS NAIN      0.393      0.977      4.705      3.010      2.168      8.012 mm
 POS NKLG     -1.251      0.597     -3.590      2.525      2.848      7.955 mm
 POS NYAL      0.700     -1.039      1.787      2.620      2.289     12.528 mm
 POS PALM     -1.262      5.180     24.555      3.298      2.526      8.775 mm
 POS PDEL     -5.105      0.472      5.955      2.437      2.204      7.476 mm
 POS PIMO      7.478     12.583     17.178      3.128      3.363     14.563 mm
 POS POL2     -3.170     -2.025    -11.018      2.955      2.584      8.072 mm
 POS RABT     -1.258      1.238      6.301      2.444      2.328      7.726 mm
 POS RESO      3.127      1.761      7.916      2.947      2.423     12.202 mm
 POS SCOR      0.937     -3.968    -15.287      2.909      2.191      9.821 mm
 POS SHAO      3.315      2.912     -8.545      2.900      2.700      9.400 mm
 POS SOFI      0.786     -8.290     -2.387      2.948      2.534      8.499 mm
 POS SUTH      2.818     -3.260     14.386      2.758      2.635      8.332 mm
 POS TEHN     -0.537      7.229    -10.023      2.874      2.578      9.099 mm
 POS THTI      0.642      4.481     -1.609      3.192      3.739     11.741 mm
 POS VNDP     13.452      3.019    -16.308      2.707      2.737      7.529 mm
 POS WILL      0.166     -5.466      0.879      2.708      2.285      6.938 mm
 POS YARR      5.024     -4.596     -5.586      2.532      2.503      7.492 mm
 POS ZAMB     -0.930     -5.500    -12.887      2.439      2.761      8.108 mm
 POS WRMS      4.399      4.429     10.962 mm

Equation

: XI :    :  Tx :   :  1+S  -Rz    Ry  : : XR :
:    :    :     :   :                  : :    :
: YI :  = :  Ty : + :  Rz    1+S  -Rx  : : YR :
:    :    :     :   :                  : :    :
: ZI :    :  Tz :   : -Ry    Rx    1+S : : ZR :