PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-08:57:30
G01     96.7           30.0                5.1 +/-    1.10       9.0 +/-    1.10  0.040 / 0.030
G07     120.2          49.3                7.7 +/-    1.33       9.8 +/-    1.33  0.030 / 0.030
G08     41.7           10.1                3.6 +/-    1.42      10.1 +/-    1.42  0.050 / 0.050
G11     73.8           41.0                6.6 +/-    0.75       9.4 +/-    0.75  0.040 / 0.050
G13     300.4          34.3                7.7 +/-    1.59      12.3 +/-    1.59  0.080 / 0.160
G17     210.0          50.0               10.4 +/-    0.97      13.1 +/-    0.97  0.070 / 0.150
G18     67.8           23.9                5.3 +/-    0.73      10.6 +/-    0.73  0.060 / 0.120
G19     212.6          18.3                4.5 +/-    2.53      10.4 +/-    2.53  0.070 / 0.110
G28     335.2          61.8                5.3 +/-    0.51       5.9 +/-    0.51  0.060 / 0.140
G30     70.8           80.3                7.9 +/-    0.77       8.0 +/-    0.77  0.050 / 0.120