PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/20-04:43:10
G01     319.4          17.1                8.5 +/-    3.68      20.2 +/-    3.68  0.100 / 0.390
G08     258.0          13.6               11.6 +/-    1.35      29.9 +/-    1.35  0.100 / 0.320
G10     78.4           53.6                4.6 +/-    0.62       5.5 +/-    0.62  0.040 / 0.060
G11     303.7          22.8                6.5 +/-    1.59      13.4 +/-    1.59  0.040 / 0.050
G14     288.4          69.0                6.8 +/-    0.59       7.3 +/-    0.59  0.100 / 0.220
G18     305.6          39.6                7.0 +/-    1.00      10.2 +/-    1.00  0.120 / 0.180
G20     97.2           45.4                8.5 +/-    0.61      11.4 +/-    0.61  0.050 / 0.040
G22     300.4          10.4                0.1 +/-   11.17       0.2 +/-   11.17  0.050 / 0.040
G31     174.2          42.9                7.8 +/-    0.95      10.9 +/-    0.95  0.060 / 0.250
G32     10.1           66.9                4.5 +/-    0.97       4.9 +/-    0.97  0.080 / 0.210