PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/06-17:28:10
G02     58.0           34.0               16.4 +/-    0.66      26.5 +/-    0.66  0.080 / 0.090
G05     65.6           66.2               17.1 +/-    0.52      18.5 +/-    0.52  0.060 / 0.100
G12     186.2          35.3               20.1 +/-    1.10      31.7 +/-    1.10  0.170 / 0.470
G13     131.4          13.6               20.1 +/-    2.01      51.6 +/-    2.01  0.100 / 0.290
G15     164.7          10.4               -3.0 +/-   39.38      -8.4 +/-   39.38  0.030 / 0.080
G20     206.7          57.6               19.9 +/-    0.80      23.1 +/-    0.80  0.040 / 0.060
G21     270.1          17.8               17.1 +/-    1.59      39.8 +/-    1.59  0.050 / 0.060
G25     235.9          52.8               17.0 +/-    0.75      20.7 +/-    0.75  0.040 / 0.060
G29     331.1          57.2               14.9 +/-    0.72      17.3 +/-    0.72  0.030 / 0.030