PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/26-13:58:00
G02     58.1           33.4                4.7 +/-    2.27       7.6 +/-    2.27  0.030 / 0.030
G05     64.5           64.7                5.8 +/-    0.54       6.3 +/-    0.54  0.030 / 0.030
G12     187.0          37.0                6.1 +/-    0.68       9.3 +/-    0.68  0.160 / 0.190
G13     131.9          13.0               10.1 +/-    4.28      26.4 +/-    4.28  0.120 / 0.260
G15     164.5          10.2               -6.7 +/-   15.52     -18.5 +/-   15.52  0.070 / 0.080
G20     207.2          54.7                6.6 +/-    0.71       7.8 +/-    0.71  0.050 / 0.070
G21     270.3          19.2                4.0 +/-    1.81       8.9 +/-    1.81  0.040 / 0.050
G25     240.5          53.7                4.6 +/-    4.27       5.6 +/-    4.27  0.050 / 0.050
G29     330.5          56.4                4.1 +/-    0.45       4.9 +/-    0.45  0.140 / 0.330