PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-23:13:00
G02     53.4           38.0               10.9 +/-    1.07      16.4 +/-    1.07  0.050 / 0.070
G05     70.5           65.9               12.0 +/-    0.59      13.0 +/-    0.59  0.050 / 0.050
G12     184.4          38.6               13.1 +/-    0.95      19.5 +/-    0.95  0.030 / 0.030
G13     133.5          10.4                4.3 +/-   29.04      12.0 +/-   29.04  0.030 / 0.030
G21     265.4          12.1               12.1 +/-    5.44      32.2 +/-    5.44  0.300 / 0.470
G25     249.0          56.1               12.2 +/-    2.47      14.4 +/-    2.47  0.260 / 0.400
G29     322.9          46.8               12.1 +/-    0.56      15.9 +/-    0.56  0.160 / 0.430