PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-13:58:10
G01     119.5          16.5                7.5 +/-    1.24      17.9 +/-    1.24  0.080 / 0.070
G07     84.0           63.7                9.0 +/-    0.76       9.9 +/-    0.76  0.070 / 0.070
G08     46.3           34.7                6.6 +/-    1.14      10.5 +/-    1.14  0.050 / 0.080
G09     177.7          28.9               10.1 +/-    0.91      18.1 +/-    0.91  0.060 / 0.080
G11     108.4          40.2               10.1 +/-    0.48      14.7 +/-    0.48  0.030 / 0.040
G13     318.0          19.2                6.1 +/-    1.35      13.6 +/-    1.35  0.030 / 0.030
G17     201.3          20.8                7.6 +/-    2.51      16.4 +/-    2.51  0.300 / 0.170
G18     94.6           20.2                7.4 +/-    2.04      16.2 +/-    2.04  0.170 / 0.320
G28     281.9          52.7                8.2 +/-    2.37      10.0 +/-    2.37  0.100 / 0.220
G30     348.4          69.1                7.8 +/-    0.72       8.3 +/-    0.72  0.100 / 0.210