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Positioning Application: What data set will be used from my Rinex file if it includes the same SV multiple times?

Environment/Versions
  • PosApp/SimGEN/SimREPLAY/SimREPLAYplus
  • Rinex file containing multiple data sets for the same SV
  • Example below shows two data sets for SV 1

1 15  1  2  0  0  0.0 0.000000000000D+00 0.000000000000D+00 0.000000000000D+00
    0.000000000000D+00 0.000000000000D+00 0.000000000000D+00 2.128071083476D+00
    0.000000000000D+00 0.000000000000D+00 0.000000000000D+00 5.153700811000D+03
    4.320000000000D+05 0.000000000000D+00-2.931509597326D+00 0.000000000000D+00
    9.599310887001D-01 0.000000000000D+00-1.201977730000D+00 0.000000000000D+00
    0.000000000000D+00 1.000000000000D+00 1.825000000000D+03 0.000000000000D+00
    1.200000000000D+00 0.000000000000D+00 0.000000000000D+00 0.000000000000D+00
    4.320000000000D+05 4.000000000000D+00 0.000000000000D+00 0.000000000000D+00
 
1 15  1  1 10  0  0.0 0.000000000000D+00 0.000000000000D+00 0.000000000000D+00
    0.000000000000D+00 0.000000000000D+00 0.000000000000D+00 1.060333827690D+00
    0.000000000000D+00 0.000000000000D+00 0.000000000000D+00 5.153700811000D+03
    3.816000000000D+05 0.000000000000D+00-2.931509597326D+00 0.000000000000D+00
    9.599310887001D-01 0.000000000000D+00-1.201977730000D+00 0.000000000000D+00
    0.000000000000D+00 1.000000000000D+00 1.825000000000D+03 0.000000000000D+00
    1.200000000000D+00 0.000000000000D+00 0.000000000000D+00 0.000000000000D+00
    3.816000000000D+05 4.000000000000D+00 0.000000000000D+00 0.000000000000D+00

Answer
  1. PosApp will use the data set located furthest down the file
    • This is because PosApp reads the file from bottom to top
    • Any subsequent data sets relating to the same SV are ignored

Product : SimREPLAYplus,SimREPLAY,SimGEN,PosApp