PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-21:27:50
G10     302.4          54.1               11.7 +/-    1.19      14.0 +/-    1.19  0.060 / 0.090
G14     210.7          11.4                7.8 +/-   35.97      21.2 +/-   35.97  0.070 / 0.080
G15     45.9           26.7                9.1 +/-    1.76      17.1 +/-    1.76  0.040 / 0.040
G20     359.9          65.0               11.3 +/-    1.21      12.4 +/-    1.21  0.040 / 0.050
G21     100.8          73.5               12.6 +/-    0.92      13.1 +/-    0.92  0.250 / 0.460
G24     96.9           27.5               13.5 +/-    1.30      25.0 +/-    1.30  0.140 / 0.480
G27     298.7          35.2               12.6 +/-    0.67      20.0 +/-    0.67  0.080 / 0.120
G32     210.9          34.2               15.8 +/-    0.83      25.4 +/-    0.83  0.060 / 0.110