PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-13:28:00
G01     81.2           33.1                4.9 +/-    0.93       8.1 +/-    0.93  0.030 / 0.030
G07     131.8          38.7                8.4 +/-    0.99      12.4 +/-    0.99  0.030 / 0.020
G11     59.8           35.3                5.9 +/-    0.66       9.3 +/-    0.66  0.070 / 0.060
G13     285.2          37.8                9.7 +/-    2.09      14.6 +/-    2.09  0.060 / 0.060
G15     312.4          10.9               -5.1 +/-   16.61     -14.0 +/-   16.61  0.080 / 0.120
G17     221.1          62.2                9.9 +/-    1.41      11.0 +/-    1.41  0.070 / 0.080
G18     55.9           21.5                5.8 +/-    3.76      12.4 +/-    3.76  0.100 / 0.080
G19     218.5          30.7                8.5 +/-    2.57      14.6 +/-    2.57  0.060 / 0.090
G28     3.3            61.0                5.4 +/-    0.82       6.1 +/-    0.82  0.130 / 0.220
G30     122.5          71.6                7.2 +/-    0.44       7.5 +/-    0.44  0.200 / 0.280