PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-14:43:00
G02     57.9           33.6                6.4 +/-    1.03      10.5 +/-    1.03  0.030 / 0.030
G05     65.1           65.1                8.8 +/-    0.55       9.6 +/-    0.55  0.030 / 0.040
G12     186.9          36.9               13.3 +/-    1.53      20.3 +/-    1.53  0.050 / 0.060
G13     131.9          13.0               12.8 +/-    3.42      33.4 +/-    3.42  0.040 / 0.060
G15     164.6          10.1               -6.3 +/-   24.23     -17.6 +/-   24.23  0.160 / 0.230
G20     207.0          55.1               14.4 +/-    1.39      17.1 +/-    1.39  0.110 / 0.250
G21     270.0          18.7                7.2 +/-    1.06      16.4 +/-    1.06  0.050 / 0.080
G25     239.9          53.7               12.1 +/-    1.78      14.6 +/-    1.78  0.060 / 0.080
G29     331.1          57.0                6.8 +/-    0.87       8.0 +/-    0.87  0.100 / 0.450