PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/15-16:42:30
G02     55.0           36.5               10.6 +/-    0.49      16.4 +/-    0.49  0.030 / 0.040
G05     74.4           68.4               11.2 +/-    0.59      11.9 +/-    0.59  0.020 / 0.030
G12     187.3          39.8               13.1 +/-    1.62      19.2 +/-    1.62  0.040 / 0.060
G13     134.4          10.9                8.3 +/-   36.50      22.7 +/-   36.50  0.040 / 0.080
G20     205.0          52.9               12.5 +/-    1.15      15.3 +/-    1.15  0.180 / 0.330
G21     267.0          15.6               11.5 +/-    1.66      28.3 +/-    1.66  0.180 / 0.390
G25     243.2          55.5               13.7 +/-    0.53      16.3 +/-    0.53  0.040 / 0.080
G29     328.5          53.9                9.5 +/-    1.07      11.4 +/-    1.07  0.080 / 0.080