PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-23:12:30
G02     214.7          59.8               14.2 +/-    0.66      16.2 +/-    0.66  0.060 / 0.110
G06     60.4           74.9               11.9 +/-    0.66      12.2 +/-    0.66  0.060 / 0.090
G12     318.3          35.3                9.6 +/-    1.68      15.1 +/-    1.68  0.030 / 0.050
G17     54.2           36.1               11.1 +/-    1.37      17.3 +/-    1.37  0.030 / 0.050
G19     36.4           51.0               10.1 +/-    0.41      12.6 +/-    0.41  0.130 / 0.340
G24     266.9          41.9               12.4 +/-    1.18      17.5 +/-    1.18  0.150 / 0.440
G28     121.9          14.3               16.8 +/-    1.19      42.5 +/-    1.19  0.030 / 0.030