PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-01:27:50
G10     289.3          48.3                8.6 +/-    3.72      11.1 +/-    3.72  0.130 / 0.110
G15     47.7           34.8                8.6 +/-    0.98      13.7 +/-    0.98  0.070 / 0.100
G18     342.8          66.7                9.7 +/-    0.36      10.4 +/-    0.36  0.070 / 0.140
G20     68.3           20.2                8.8 +/-    2.69      19.2 +/-    2.69  0.070 / 0.120
G21     77.1           76.4               10.1 +/-    0.84      10.4 +/-    0.84  0.140 / 0.090
G24     104.4          24.2                9.7 +/-    0.83      19.3 +/-    0.83  0.130 / 0.070
G27     304.1          32.8                7.9 +/-    3.05      13.1 +/-    3.05  0.040 / 0.030
G29     167.5          10.3               10.6 +/-    4.04      29.5 +/-    4.04  0.040 / 0.030
G32     209.2          26.0               11.8 +/-    0.94      22.6 +/-    0.94  0.110 / 0.300