PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-15:42:30
G02     303.5          79.9                5.0 +/-    0.67       5.0 +/-    0.67  0.090 / 0.180
G05     167.2          28.5                9.5 +/-    0.97      17.1 +/-    0.97  0.090 / 0.150
G06     40.5           43.0                6.5 +/-    0.52       9.1 +/-    0.52  0.030 / 0.050
G12     316.7          67.0                6.1 +/-    1.00       6.6 +/-    1.00  0.030 / 0.040
G17     81.1           16.1                6.8 +/-    2.05      16.4 +/-    2.05  0.100 / 0.210
G19     71.7           27.9                6.7 +/-    0.73      12.3 +/-    0.73  0.110 / 0.210
G24     232.7          25.6                9.8 +/-    1.73      19.0 +/-    1.73  0.050 / 0.110
G25     317.4          24.1                8.0 +/-    3.62      15.9 +/-    3.62  0.060 / 0.110