PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-19:43:00
G10     260.8          35.9               11.5 +/-    2.31      18.0 +/-    2.31  0.100 / 0.180
G13     44.8           21.7                7.5 +/-    1.48      15.8 +/-    1.48  0.090 / 0.190
G15     67.1           53.2                9.9 +/-    0.64      12.0 +/-    0.64  0.060 / 0.050
G16     284.5          14.4                9.0 +/-    1.81      22.7 +/-    1.81  0.060 / 0.060
G20     288.2          58.0               11.9 +/-    1.11      13.7 +/-    1.11  0.070 / 0.300
G21     348.8          67.0               10.0 +/-    0.54      10.8 +/-    0.54  0.080 / 0.280
G24     127.1          10.4              -14.5 +/-   30.61     -40.2 +/-   30.61  0.110 / 0.400
G26     258.3          10.8               11.9 +/-    2.38      32.5 +/-    2.38  0.110 / 0.430
G27     321.2          13.5                8.5 +/-    2.57      21.8 +/-    2.57  0.030 / 0.040
G29     166.3          38.7               11.9 +/-    1.58      17.6 +/-    1.58  0.030 / 0.040