PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/09-17:57:40
G02     72.7           22.0               10.1 +/-    1.12      21.2 +/-    1.12  0.050 / 0.170
G05     46.4           49.4               10.2 +/-    0.81      13.0 +/-    0.81  0.080 / 0.130
G12     182.3          16.8               13.0 +/-    2.86      30.9 +/-    2.86  0.070 / 0.190
G13     116.1          25.9               13.3 +/-    0.98      25.5 +/-    0.98  0.090 / 0.180
G15     154.4          25.4               15.0 +/-    1.28      29.0 +/-    1.28  0.070 / 0.100
G18     223.6          15.5               13.2 +/-    2.62      32.4 +/-    2.62  0.060 / 0.120
G20     224.9          77.6               13.4 +/-    0.72      13.7 +/-    0.72  0.040 / 0.040
G21     285.3          28.9                9.0 +/-    1.28      16.2 +/-    1.28  0.040 / 0.040
G25     216.3          37.5               14.1 +/-    0.93      21.3 +/-    0.93  0.030 / 0.050
G29     350.7          75.6               10.3 +/-    0.72      10.6 +/-    0.72  0.040 / 0.050