PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/13-00:12:40
G01     122.5          15.4                7.8 +/-    2.55      19.2 +/-    2.55  0.100 / 0.080
G07     69.1           68.3                8.1 +/-    0.41       8.6 +/-    0.41  0.060 / 0.060
G08     47.7           36.8                7.3 +/-    1.17      11.2 +/-    1.17  0.190 / 0.270
G09     178.3          31.1                7.3 +/-    0.99      12.6 +/-    0.99  0.240 / 0.180
G11     115.1          37.8                9.4 +/-    1.07      14.2 +/-    1.07  0.040 / 0.040
G13     319.7          15.5                5.0 +/-    1.25      12.3 +/-    1.25  0.040 / 0.070
G17     201.3          19.4                8.9 +/-    1.65      20.0 +/-    1.65  0.180 / 0.210
G28     286.7          56.1                7.7 +/-    2.51       9.0 +/-    2.51  0.160 / 0.210
G30     349.8          68.4                6.9 +/-    0.77       7.4 +/-    0.77  0.050 / 0.080