PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-04:58:10
G01     46.8           22.8                3.4 +/-    1.69       7.0 +/-    1.69  0.050 / 0.050
G06     179.8          26.4                6.4 +/-    1.71      12.1 +/-    1.71  0.050 / 0.050
G11     44.2           12.6                2.2 +/-    2.03       5.8 +/-    2.03  0.140 / 0.410
G13     247.2          27.9                4.8 +/-    1.97       8.7 +/-    1.97  0.090 / 0.280
G15     278.7          15.2                1.7 +/-    3.98       4.3 +/-    3.98  0.020 / 0.020
G17     334.6          76.7                5.7 +/-    0.38       5.9 +/-    0.38  0.030 / 0.020
G19     256.0          64.3                5.9 +/-    0.71       6.5 +/-    0.71  0.130 / 0.110
G24     319.0          10.7              -16.7 +/-   13.10     -45.9 +/-   13.10  0.110 / 0.160
G28     59.8           50.6                4.1 +/-    0.42       5.2 +/-    0.42  0.120 / 0.150
G30     150.7          34.1                7.4 +/-    1.52      11.9 +/-    1.52  0.130 / 0.150