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                6.5 +/-    0.74      11.0 +/-    0.74  0.040 / 0.040
G07     126.0          44.9                8.1 +/-    0.45      10.9 +/-    0.45  0.050 / 0.040
G11     69.8           40.2                5.4 +/-    0.93       7.9 +/-    0.93  0.040 / 0.040
G13     295.0          35.4                9.0 +/-    3.82      14.1 +/-    3.82  0.050 / 0.040
G15     314.5          10.8               -3.9 +/-   18.02     -10.6 +/-   18.02  0.220 / 0.230
G17     215.1          54.1               11.9 +/-    0.75      14.4 +/-    0.75  0.190 / 0.150
G19     214.8          28.4                9.0 +/-    1.29      16.3 +/-    1.29  0.050 / 0.040
G28     351.8          61.6                5.8 +/-    0.46       6.5 +/-    0.46  0.040 / 0.040
G30     109.8          72.6                7.8 +/-    1.07       8.2 +/-    1.07  0.080 / 0.100