PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-04:27:50
G01     42.8           18.5                3.2 +/-    2.69       7.4 +/-    2.69  0.040 / 0.060
G06     178.3          33.4                5.2 +/-    0.98       8.5 +/-    0.98  0.040 / 0.040
G13     241.2          24.0                6.9 +/-    1.93      13.8 +/-    1.93  0.030 / 0.020
G15     272.8          13.5                3.9 +/-    1.11      10.1 +/-    1.11  0.030 / 0.030
G17     353.4          72.8                4.3 +/-    0.50       4.5 +/-    0.50  0.160 / 0.280
G19     271.0          68.2                4.4 +/-    0.66       4.7 +/-    0.66  0.390 / 0.320
G24     317.8          16.0                1.3 +/-    3.79       3.3 +/-    3.79  0.070 / 0.180
G28     68.5           47.7                4.2 +/-    1.87       5.5 +/-    1.87  0.060 / 0.240
G30     152.7          27.3                5.8 +/-    1.76      10.7 +/-    1.76  0.090 / 0.210