PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-15:42:40
G02     68.8           24.6               15.0 +/-    1.60      29.6 +/-    1.60  0.030 / 0.040
G05     48.8           53.2               16.3 +/-    0.49      19.8 +/-    0.49  0.030 / 0.030
G12     183.8          22.5               14.3 +/-    2.72      29.7 +/-    2.72  0.040 / 0.040
G13     120.8          22.4               21.3 +/-    1.06      44.3 +/-    1.06  0.040 / 0.050
G15     157.0          21.1               16.3 +/-    1.52      34.8 +/-    1.52  0.070 / 0.160
G18     221.3          11.3                1.8 +/-   29.85       4.9 +/-   29.85  0.050 / 0.150
G20     217.0          70.7               17.6 +/-    0.62      18.5 +/-    0.62  0.080 / 0.210
G21     281.4          26.8               13.4 +/-    2.01      25.1 +/-    2.01  0.070 / 0.210
G25     222.2          42.8               18.6 +/-    1.32      25.8 +/-    1.32  0.050 / 0.090
G29     345.0          70.9               14.8 +/-    0.99      15.5 +/-    0.99  0.050 / 0.090