PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-01:43:10
G02     57.0           34.6                8.9 +/-    1.42      14.2 +/-    1.42  0.050 / 0.070
G05     62.7           62.8               10.6 +/-    0.39      11.8 +/-    0.39  0.050 / 0.080
G12     185.0          36.0               13.2 +/-    0.79      20.6 +/-    0.79  0.100 / 0.440
G13     131.2          12.7               13.0 +/-    1.76      34.1 +/-    1.76  0.140 / 0.490
G21     268.2          14.6               10.9 +/-    2.18      27.4 +/-    2.18  0.030 / 0.030
G25     243.8          54.3               11.6 +/-    1.92      13.9 +/-    1.92  0.030 / 0.030
G29     325.3          50.2               11.0 +/-    1.08      13.8 +/-    1.08  0.040 / 0.050