PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-15:58:00
G01     93.3           31.1               10.1 +/-    0.60      17.3 +/-    0.60  0.040 / 0.050
G07     123.0          48.0               10.2 +/-    0.94      13.2 +/-    0.94  0.030 / 0.060
G11     71.7           40.7                9.6 +/-    0.77      13.9 +/-    0.77  0.030 / 0.040
G13     297.5          35.2               10.4 +/-    1.12      16.5 +/-    1.12  0.030 / 0.030
G17     212.8          49.9               13.0 +/-    1.85      16.5 +/-    1.85  0.080 / 0.170
G18     66.5           24.3                8.2 +/-    1.39      16.3 +/-    1.39  0.150 / 0.170
G19     213.7          22.3               13.3 +/-    0.62      27.7 +/-    0.62  0.070 / 0.110
G28     343.7          61.9                9.1 +/-    0.53      10.2 +/-    0.53  0.070 / 0.120
G30     92.5           78.1               10.5 +/-    0.54      10.7 +/-    0.54  0.090 / 0.150