PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-22:13:10
G10     260.6          35.6               11.7 +/-    1.76      18.4 +/-    1.76  0.040 / 0.040
G13     44.9           22.0                8.4 +/-    1.51      17.6 +/-    1.51  0.050 / 0.050
G15     67.5           53.4               10.1 +/-    0.80      12.2 +/-    0.80  0.160 / 0.310
G16     285.3          14.3                7.7 +/-    1.05      19.6 +/-    1.05  0.170 / 0.280
G20     286.4          57.1                9.1 +/-    1.81      10.6 +/-    1.81  0.040 / 0.040
G21     348.3          66.9                9.5 +/-    0.98      10.2 +/-    0.98  0.040 / 0.040
G24     126.8          10.3               -6.0 +/-   40.29     -16.6 +/-   40.29  0.220 / 0.330
G26     258.6          10.9                9.7 +/-    5.74      26.7 +/-    5.74  0.170 / 0.380
G27     321.3          13.2                6.2 +/-    3.05      16.1 +/-    3.05  0.090 / 0.360
G29     166.0          38.2               11.3 +/-    0.56      16.9 +/-    0.56  0.110 / 0.340