PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-03:27:50
G01     42.5           18.1                3.7 +/-    2.24       8.5 +/-    2.24  0.040 / 0.040
G06     177.6          34.6                6.7 +/-    1.04      10.6 +/-    1.04  0.040 / 0.060
G13     240.6          23.6                6.2 +/-    2.14      12.6 +/-    2.14  0.110 / 0.080
G15     272.2          13.3                3.5 +/-    1.27       9.1 +/-    1.27  0.100 / 0.080
G17     352.9          72.7                5.8 +/-    0.93       6.0 +/-    0.93  0.100 / 0.160
G19     272.2          68.4                6.3 +/-    0.70       6.7 +/-    0.70  0.110 / 0.150
G24     317.6          16.6                2.4 +/-    3.49       5.6 +/-    3.49  0.030 / 0.030
G28     69.3           47.5                5.6 +/-    1.61       7.3 +/-    1.61  0.030 / 0.030
G30     152.7          26.0                5.0 +/-    1.73       9.6 +/-    1.73  0.200 / 0.170