PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-17:42:30
G08     306.5          20.5                8.9 +/-    1.04      19.4 +/-    1.04  0.060 / 0.070
G10     343.6          61.5               24.3 +/-    0.57      27.3 +/-    0.57  0.060 / 0.080
G14     219.8          29.4               11.9 +/-    2.42      21.1 +/-    2.42  0.090 / 0.200
G20     48.8           56.9                8.3 +/-    0.44       9.7 +/-    0.44  0.090 / 0.220
G21     137.9          53.3               10.9 +/-    0.47      13.2 +/-    0.47  0.030 / 0.030
G24     71.2           30.3                8.2 +/-    0.56      14.2 +/-    0.56  0.040 / 0.030
G27     270.0          37.2               10.4 +/-    1.06      15.9 +/-    1.06  0.040 / 0.060
G32     226.0          57.6               10.0 +/-    1.42      11.6 +/-    1.42  0.060 / 0.050