PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-14:43:00
G01     96.2           30.2               11.7 +/-    1.17      20.4 +/-    1.17  0.030 / 0.020
G07     120.3          50.1               11.8 +/-    0.79      14.9 +/-    0.79  0.030 / 0.030
G08     41.9           11.3                8.7 +/-    1.74      23.6 +/-    1.74  0.040 / 0.050
G11     74.4           41.3                9.4 +/-    1.40      13.4 +/-    1.40  0.040 / 0.050
G13     300.1          34.2                8.8 +/-    1.96      14.2 +/-    1.96  0.080 / 0.120
G17     211.0          48.2               11.7 +/-    0.61      15.1 +/-    0.61  0.140 / 0.110
G18     69.0           24.5               10.9 +/-    2.80      21.6 +/-    2.80  0.070 / 0.080
G19     212.7          19.7               10.0 +/-    2.00      22.2 +/-    2.00  0.060 / 0.130
G28     338.4          61.9               10.7 +/-    0.58      12.0 +/-    0.58  0.080 / 0.090
G30     77.6           79.6               12.1 +/-    0.79      12.3 +/-    0.79  0.080 / 0.110