PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/17-17:28:10
G01     318.6          20.6                5.5 +/-    1.97      12.0 +/-    1.97  0.040 / 0.040
G08     256.5          13.6                6.0 +/-    3.56      15.4 +/-    3.56  0.040 / 0.050
G10     81.0           51.1                7.7 +/-    0.58       9.6 +/-    0.58  0.110 / 0.430
G11     306.6          19.6                6.2 +/-    1.47      13.7 +/-    1.47  0.100 / 0.360
G14     285.6          68.4                7.4 +/-    0.66       7.9 +/-    0.66  0.040 / 0.040
G20     106.8          25.8                8.4 +/-    1.22      16.0 +/-    1.22  0.040 / 0.030
G31     176.5          41.0                9.7 +/-    0.91      13.9 +/-    0.91  0.060 / 0.090
G32     11.5           66.6                6.6 +/-    0.30       7.1 +/-    0.30  0.050 / 0.060