PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-22:58:10
G10     300.1          52.8                9.4 +/-    1.91      11.5 +/-    1.91  0.060 / 0.070
G14     210.7          12.9                7.7 +/-   21.79      20.1 +/-   21.79  0.080 / 0.100
G15     46.4           30.6                7.6 +/-    1.22      13.1 +/-    1.22  0.130 / 0.510
G20     288.5          39.2               20.0 +/-    0.43      29.4 +/-    0.43  0.110 / 0.370
G21     99.4           74.2               10.5 +/-    0.68      10.8 +/-    0.68  0.110 / 0.130
G24     93.5           26.9                9.1 +/-    1.29      17.1 +/-    1.29  0.110 / 0.120
G27     298.9          34.7                8.6 +/-    1.27      13.7 +/-    1.27  0.040 / 0.040
G32     210.9          35.5               13.1 +/-    2.19      20.6 +/-    2.19  0.040 / 0.040