PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-23:43:00
G02     21.8           64.4               12.1 +/-    0.42      13.2 +/-    0.42  0.030 / 0.030
G05     151.7          52.2               17.6 +/-    0.93      21.6 +/-    0.93  0.020 / 0.030
G06     48.4           23.7               10.1 +/-    0.49      20.3 +/-    0.49  0.300 / 0.380
G12     223.9          78.1               13.1 +/-    0.62      13.4 +/-    0.62  0.270 / 0.370
G19     90.1           18.1               13.4 +/-    0.81      30.8 +/-    0.81  0.040 / 0.050
G24     215.3          10.3               20.1 +/-   29.49      55.7 +/-   29.49  0.030 / 0.050
G25     309.8          44.4               11.3 +/-    1.76      15.3 +/-    1.76  0.050 / 0.080
G29     298.9          19.1               13.8 +/-    1.72      31.0 +/-    1.72  0.050 / 0.080