PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-00:27:30
G02     39.6           49.8               10.0 +/-    1.11      12.6 +/-    1.11  0.030 / 0.040
G05     120.7          67.1               12.4 +/-    0.40      13.3 +/-    0.40  0.030 / 0.040
G06     58.0           10.0               10.0 +/-    1.53      28.0 +/-    1.53  0.030 / 0.020
G12     191.2          59.3               12.8 +/-    0.72      14.6 +/-    0.72  0.020 / 0.030
G25     286.0          56.6               10.5 +/-    2.91      12.3 +/-    2.91  0.170 / 0.340
G29     311.6          32.3               10.7 +/-    2.11      17.9 +/-    2.11  0.170 / 0.350