PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-23:27:50
G08     265.8          16.3               11.8 +/-    1.05      28.4 +/-    1.05  0.210 / 0.350
G10     71.3           54.7               10.1 +/-    1.22      12.1 +/-    1.22  0.210 / 0.370
G11     309.5          18.5                8.4 +/-    1.93      19.3 +/-    1.93  0.050 / 0.050
G14     273.0          66.9                8.9 +/-    0.79       9.6 +/-    0.79  0.040 / 0.050
G18     309.7          36.3                9.3 +/-    0.73      14.5 +/-    0.73  0.080 / 0.110
G20     100.6          32.3                8.3 +/-    1.16      13.9 +/-    1.16  0.130 / 0.100
G21     156.0          11.8               10.3 +/-    2.73      27.5 +/-    2.73  0.020 / 0.020
G27     228.4          13.2               11.5 +/-    3.47      29.9 +/-    3.47  0.020 / 0.020
G31     176.1          36.3               10.9 +/-    1.68      16.9 +/-    1.68  0.210 / 0.460
G32     354.7          71.6                7.7 +/-    0.81       8.1 +/-    0.81  0.130 / 0.300