PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/12-08:42:40
G01     95.9           30.2                7.0 +/-    0.93      12.2 +/-    0.93  0.030 / 0.020
G07     120.9          48.7                8.2 +/-    0.71      10.5 +/-    0.71  0.030 / 0.020
G08     41.8           9.5                 2.0 +/-    5.15       5.6 +/-    5.15  0.040 / 0.040
G11     72.9           40.8                6.4 +/-    1.38       9.2 +/-    1.38  0.040 / 0.050
G13     299.7          34.6                5.3 +/-    1.37       8.4 +/-    1.37  0.060 / 0.100
G17     210.3          50.8                9.1 +/-    0.76      11.3 +/-    0.76  0.060 / 0.100
G18     67.1           23.8                4.0 +/-    1.18       8.1 +/-    1.18  0.060 / 0.140
G19     212.8          19.0                5.8 +/-    2.89      13.2 +/-    2.89  0.060 / 0.140
G28     336.4          61.8                5.4 +/-    0.36       6.0 +/-    0.36  0.360 / 0.310
G30     74.7           80.2                6.3 +/-    0.62       6.4 +/-    0.62  0.380 / 0.460