PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-15:42:50
G01     94.7           30.6               10.5 +/-    1.14      18.2 +/-    1.14  0.070 / 0.130
G07     121.7          49.1               10.7 +/-    0.46      13.6 +/-    0.46  0.070 / 0.110
G08     42.0           10.9                9.4 +/-    2.76      25.8 +/-    2.76  0.030 / 0.020
G11     73.2           41.1                9.7 +/-    0.97      13.9 +/-    0.97  0.020 / 0.020
G13     298.8          34.7               10.6 +/-    2.96      17.0 +/-    2.96  0.030 / 0.040
G17     212.0          48.8               11.9 +/-    0.54      15.2 +/-    0.54  0.040 / 0.050
G18     67.8           24.4               10.1 +/-    1.78      20.1 +/-    1.78  0.040 / 0.060
G19     213.2          21.1               11.4 +/-    1.77      24.4 +/-    1.77  0.050 / 0.050
G28     341.2          61.9               10.2 +/-    0.44      11.4 +/-    0.44  0.080 / 0.120
G30     86.1           78.8               10.9 +/-    0.35      11.1 +/-    0.35  0.080 / 0.110