PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-08:12:40
G01     74.0           33.1                5.2 +/-    0.73       8.6 +/-    0.73  0.040 / 0.040
G07     135.7          32.5                8.4 +/-    0.88      13.9 +/-    0.88  0.040 / 0.040
G11     55.8           31.9                3.0 +/-    1.23       5.0 +/-    1.23  0.040 / 0.090
G13     280.0          37.1                3.0 +/-    1.71       4.7 +/-    1.71  0.060 / 0.070
G15     305.0          14.9               -0.2 +/-    2.30      -0.6 +/-    2.30  0.080 / 0.200
G17     229.5          68.4                7.0 +/-    0.39       7.5 +/-    0.39  0.100 / 0.190
G19     222.3          41.0                6.2 +/-    1.47       8.8 +/-    1.47  0.030 / 0.030
G28     15.8           59.6                4.0 +/-    0.67       4.6 +/-    0.67  0.030 / 0.040
G30     131.6          64.2                6.8 +/-    0.19       7.5 +/-    0.19  0.260 / 0.260