PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-05:12:40
G01     42.8           18.5                3.4 +/-    2.63       7.7 +/-    2.63  0.040 / 0.050
G06     178.7          32.8                6.1 +/-    1.16      10.1 +/-    1.16  0.040 / 0.050
G13     241.3          24.0                4.6 +/-    2.97       9.1 +/-    2.97  0.070 / 0.240
G15     272.8          13.5                3.1 +/-    0.97       8.1 +/-    0.97  0.060 / 0.250
G17     354.8          72.6                5.3 +/-    0.62       5.5 +/-    0.62  0.020 / 0.020
G19     271.3          68.4                5.2 +/-    0.68       5.5 +/-    0.68  0.030 / 0.020
G24     317.8          15.9                0.3 +/-    3.13       0.7 +/-    3.13  0.160 / 0.400
G28     68.6           47.7                4.9 +/-    1.53       6.4 +/-    1.53  0.440 / 0.260
G30     152.9          27.8                7.8 +/-    1.84      14.3 +/-    1.84  0.200 / 0.330