PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-15:27:50
G01     94.0           30.9               11.0 +/-    1.03      18.9 +/-    1.03  0.040 / 0.040
G07     122.3          48.5               11.0 +/-    0.51      14.1 +/-    0.51  0.040 / 0.050
G08     42.1           10.2                9.5 +/-    2.96      26.4 +/-    2.96  0.020 / 0.020
G11     72.3           40.8                9.4 +/-    0.87      13.5 +/-    0.87  0.030 / 0.020
G13     298.1          35.0               10.2 +/-    2.43      16.1 +/-    2.43  0.040 / 0.050
G17     212.3          49.6               12.8 +/-    0.77      16.2 +/-    0.77  0.040 / 0.050
G18     67.0           24.3               10.2 +/-    1.35      20.2 +/-    1.35  0.070 / 0.090
G19     213.5          21.6               11.2 +/-    1.77      23.7 +/-    1.77  0.090 / 0.110
G28     342.4          61.9               11.0 +/-    0.54      12.3 +/-    0.54  0.030 / 0.040
G30     88.8           78.6               12.3 +/-    0.51      12.5 +/-    0.51  0.030 / 0.060