PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-18:42:50
G01     71.9           33.1               15.5 +/-    0.91      25.4 +/-    0.91  0.080 / 0.250
G07     136.9          32.3               17.1 +/-    1.56      28.6 +/-    1.56  0.070 / 0.260
G11     54.7           31.9               14.4 +/-    1.88      24.2 +/-    1.88  0.060 / 0.080
G13     275.8          37.6               18.0 +/-    1.68      27.3 +/-    1.68  0.060 / 0.090
G15     304.1          14.6               13.2 +/-    1.51      33.1 +/-    1.51  0.030 / 0.030
G17     231.0          65.5               18.2 +/-    0.85      19.8 +/-    0.85  0.030 / 0.030
G18     50.0           18.9               16.6 +/-    1.76      37.5 +/-    1.76  0.050 / 0.090
G19     223.5          39.4               17.8 +/-    1.87      26.2 +/-    1.87  0.100 / 0.090
G28     18.2           59.5               16.1 +/-    1.07      18.4 +/-    1.07  0.120 / 0.210
G30     134.5          62.3               17.2 +/-    0.35      19.2 +/-    0.35  0.240 / 0.160