PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-17:58:10
G01     66.9           32.4               11.4 +/-    1.28      19.1 +/-    1.28  0.030 / 0.040
G07     139.3          28.3               11.8 +/-    1.49      21.4 +/-    1.49  0.030 / 0.040
G11     51.7           28.6                9.7 +/-    1.35      17.6 +/-    1.35  0.060 / 0.140
G13     270.2          37.0               13.3 +/-    1.05      20.4 +/-    1.05  0.050 / 0.110
G15     300.7          15.2                6.7 +/-    1.05      16.4 +/-    1.05  0.050 / 0.180
G17     239.0          69.9               13.8 +/-    1.01      14.6 +/-    1.01  0.050 / 0.160
G18     46.6           16.6                9.3 +/-    1.27      22.4 +/-    1.27  0.070 / 0.320
G19     226.7          43.0               15.0 +/-    1.72      20.8 +/-    1.72  0.080 / 0.310
G28     25.5           58.5               11.5 +/-    0.83      13.3 +/-    0.83  0.040 / 0.050
G30     138.8          58.4               13.8 +/-    0.85      15.9 +/-    0.85  0.030 / 0.040