PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-19:42:40
G02     303.8          80.8               12.9 +/-    0.70      13.0 +/-    0.70  0.070 / 0.110
G05     166.6          28.3               20.0 +/-    1.31      36.3 +/-    1.31  0.070 / 0.100
G06     40.9           43.6               11.3 +/-    1.15      15.5 +/-    1.15  0.130 / 0.190
G12     317.4          69.2               10.8 +/-    0.68      11.5 +/-    0.68  0.130 / 0.260
G17     81.7           14.6               10.9 +/-    3.52      27.4 +/-    3.52  0.050 / 0.040
G19     68.2           32.9               10.9 +/-    1.04      17.9 +/-    1.04  0.040 / 0.050
G24     231.4          26.1               17.3 +/-    2.53      32.9 +/-    2.53  0.130 / 0.210
G25     317.7          24.2                9.9 +/-    1.11      19.7 +/-    1.11  0.130 / 0.210