PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-01:42:40
G02     53.7           37.3                9.9 +/-    1.50      15.1 +/-    1.50  0.040 / 0.070
G05     70.8           65.6               11.8 +/-    0.60      12.8 +/-    0.60  0.050 / 0.070
G12     185.9          40.5               15.4 +/-    0.68      22.2 +/-    0.68  0.030 / 0.030
G13     134.2          10.0               -3.3 +/-   20.77      -9.1 +/-   20.77  0.030 / 0.030
G21     265.0          12.1               13.5 +/-    3.95      36.0 +/-    3.95  0.230 / 0.290
G25     251.3          56.3               11.9 +/-    1.91      14.0 +/-    1.91  0.290 / 0.350
G29     322.8          46.5               12.1 +/-    0.67      15.9 +/-    0.67  0.070 / 0.040