PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-13:43:00
G01     81.9           33.0                5.2 +/-    0.90       8.5 +/-    0.90  0.030 / 0.030
G07     131.3          39.3                7.0 +/-    0.56      10.3 +/-    0.56  0.030 / 0.030
G11     60.5           35.8                6.6 +/-    1.03      10.3 +/-    1.03  0.050 / 0.060
G13     286.0          37.7                8.7 +/-    1.31      13.1 +/-    1.31  0.070 / 0.060
G15     312.8          10.8               -7.7 +/-   12.57     -21.2 +/-   12.57  0.060 / 0.090
G17     220.4          61.4                8.9 +/-    1.37      10.0 +/-    1.37  0.080 / 0.100
G18     56.6           21.7                6.8 +/-    4.33      14.4 +/-    4.33  0.050 / 0.090
G19     218.2          30.2                8.4 +/-    1.77      14.7 +/-    1.77  0.070 / 0.080
G28     2.1            61.1                5.5 +/-    0.58       6.2 +/-    0.58  0.180 / 0.230
G30     121.2          72.0                7.6 +/-    0.86       7.9 +/-    0.86  0.270 / 0.160