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                9.3 +/-    0.51      14.1 +/-    0.51  0.210 / 0.640
G05     70.8           65.6               11.9 +/-    0.32      12.9 +/-    0.32  0.180 / 0.520
G12     185.9          40.5               14.4 +/-    1.41      20.8 +/-    1.41  0.040 / 0.090
G13     134.2          10.0               -8.1 +/-   11.68     -22.6 +/-   11.68  0.060 / 0.070
G21     265.0          12.1               13.4 +/-    2.61      35.8 +/-    2.61  0.040 / 0.040
G25     251.3          56.3               12.8 +/-    0.57      15.0 +/-    0.57  0.030 / 0.040
G29     322.8          46.5               10.0 +/-    1.27      13.2 +/-    1.27  0.070 / 0.100