PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-19:27:30
G10     265.3          38.7               10.9 +/-    1.30      16.2 +/-    1.30  0.110 / 0.170
G13     42.4           18.6                7.6 +/-    1.99      17.4 +/-    1.99  0.090 / 0.150
G15     61.1           50.1               11.0 +/-    0.75      13.8 +/-    0.75  0.040 / 0.050
G16     280.3          13.3                9.9 +/-    0.98      25.6 +/-    0.98  0.050 / 0.040
G20     296.3          60.2                9.7 +/-    0.83      11.0 +/-    0.83  0.140 / 0.350
G21     357.1          70.0               10.8 +/-    0.60      11.5 +/-    0.60  0.150 / 0.360
G24     123.8          12.9               12.2 +/-    3.16      32.0 +/-    3.16  0.070 / 0.250
G27     319.7          17.0                7.3 +/-    1.59      17.2 +/-    1.59  0.080 / 0.220
G29     167.1          34.1               12.0 +/-    1.12      19.4 +/-    1.12  0.090 / 0.380