PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-03:27:50
G01     89.5           32.0                7.1 +/-    0.89      11.9 +/-    0.89  0.040 / 0.050
G07     126.0          44.9                8.1 +/-    1.08      10.9 +/-    1.08  0.040 / 0.050
G11     69.8           40.2                6.2 +/-    0.44       9.1 +/-    0.44  0.030 / 0.050
G13     295.0          35.4                8.3 +/-    1.57      13.0 +/-    1.57  0.040 / 0.040
G15     314.5          10.8               -2.1 +/-   18.33      -5.7 +/-   18.33  0.040 / 0.050
G17     215.1          54.1               13.1 +/-    0.54      15.8 +/-    0.54  0.030 / 0.060
G19     214.8          28.4                8.1 +/-    1.66      14.6 +/-    1.66  0.130 / 0.340
G28     351.8          61.6                5.3 +/-    0.72       5.9 +/-    0.72  0.120 / 0.390
G30     109.8          72.6                7.4 +/-    0.94       7.7 +/-    0.94  0.090 / 0.110