PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-21:58:10
G01     320.2          14.1               15.8 +/-    1.21      40.1 +/-    1.21  0.170 / 0.390
G08     260.7          15.4               25.8 +/-    2.85      63.6 +/-    2.85  0.160 / 0.330
G10     71.4           56.3               21.1 +/-    0.62      24.8 +/-    0.62  0.120 / 0.250
G11     306.7          21.2               19.0 +/-    3.22      40.7 +/-    3.22  0.090 / 0.230
G14     285.3          69.9               22.4 +/-    0.54      23.7 +/-    0.54  0.060 / 0.080
G18     98.1           31.4               20.0 +/-    0.97      34.0 +/-    0.97  0.070 / 0.070
G27     226.0          11.3               29.9 +/-    1.77      81.3 +/-    1.77  0.040 / 0.030
G31     180.0          33.8               29.2 +/-    1.49      47.4 +/-    1.49  0.040 / 0.030
G32     350.4          71.4               21.6 +/-    0.36      22.7 +/-    0.36  0.030 / 0.020