PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-13:28:10
G01     87.5           32.3                6.4 +/-    1.09      10.6 +/-    1.09  0.030 / 0.030
G07     127.5          43.5                7.4 +/-    1.18      10.3 +/-    1.18  0.020 / 0.030
G11     65.1           38.1                4.7 +/-    0.51       7.0 +/-    0.51  0.110 / 0.110
G13     291.7          36.8                7.1 +/-    1.64      10.8 +/-    1.64  0.090 / 0.110
G17     216.0          56.8                8.0 +/-    1.07       9.4 +/-    1.07  0.070 / 0.060
G18     61.0           23.1                5.5 +/-    0.80      11.3 +/-    0.80  0.070 / 0.060
G19     215.9          26.0                7.5 +/-    2.97      14.4 +/-    2.97  0.060 / 0.070
G28     353.1          61.6                5.0 +/-    0.77       5.6 +/-    0.77  0.060 / 0.060
G30     109.0          75.9                8.2 +/-    0.45       8.4 +/-    0.45  0.050 / 0.090