PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-18:13:00
G02     50.2           41.8               10.4 +/-    1.34      14.7 +/-    1.34  0.040 / 0.030
G05     77.1           68.7               10.5 +/-    0.34      11.2 +/-    0.34  0.030 / 0.030
G12     183.3          38.1               11.9 +/-    0.73      17.9 +/-    0.73  0.040 / 0.080
G13     133.6          10.1               -1.4 +/-   23.44      -3.9 +/-   23.44  0.040 / 0.080
G21     265.3          12.3               10.8 +/-    5.04      28.7 +/-    5.04  0.040 / 0.040
G25     246.2          56.4               10.5 +/-    1.20      12.3 +/-    1.20  0.040 / 0.050
G29     322.9          46.6               10.6 +/-    1.12      13.9 +/-    1.12  0.240 / 0.490