PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-23:57:40
G02     336.9          79.6                8.1 +/-    0.62       8.3 +/-    0.62  0.040 / 0.040
G05     164.3          31.8               12.5 +/-    0.88      21.1 +/-    0.88  0.030 / 0.030
G06     40.0           44.8                7.1 +/-    0.49       9.6 +/-    0.49  0.070 / 0.140
G12     315.5          65.8                7.3 +/-    0.89       7.9 +/-    0.89  0.080 / 0.140
G17     84.0           12.4               10.7 +/-    2.81      28.4 +/-    2.81  0.110 / 0.170
G19     72.7           28.1                8.8 +/-    0.85      16.1 +/-    0.85  0.110 / 0.230
G24     229.3          24.0               11.0 +/-    2.07      22.0 +/-    2.07  0.050 / 0.130
G25     317.2          27.1                6.4 +/-    1.23      12.0 +/-    1.23  0.060 / 0.130
G29     285.3          10.4               -7.3 +/-   19.41     -20.3 +/-   19.41  0.110 / 0.280