PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-22:58:10
G10     270.4          39.4               16.5 +/-    1.38      24.2 +/-    1.38  0.060 / 0.070
G13     41.1           17.4               14.3 +/-    1.91      33.7 +/-    1.91  0.050 / 0.070
G15     56.4           46.9               16.8 +/-    0.86      22.0 +/-    0.86  0.140 / 0.310
G18     307.6          65.2               17.0 +/-    0.53      18.5 +/-    0.53  0.140 / 0.230
G20     57.2           31.6               13.4 +/-    1.20      22.7 +/-    1.20  0.030 / 0.030
G21     15.2           74.2               16.9 +/-    0.36      17.5 +/-    0.36  0.030 / 0.030
G24     118.7          15.9               20.9 +/-    1.78      50.8 +/-    1.78  0.190 / 0.110
G27     316.0          22.8               15.6 +/-    1.37      32.1 +/-    1.37  0.110 / 0.120
G29     166.9          24.3               19.9 +/-    2.30      39.5 +/-    2.30  0.060 / 0.100