PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-18:12:40
G10     257.6          31.3               19.1 +/-    1.09      32.6 +/-    1.09  0.090 / 0.240
G13     48.0           26.3               13.2 +/-    1.73      25.0 +/-    1.73  0.120 / 0.260
G15     70.6           53.9               16.7 +/-    0.52      20.1 +/-    0.52  0.040 / 0.040
G16     294.0          12.7               12.5 +/-    1.40      32.7 +/-    1.40  0.040 / 0.030
G18     284.0          61.4               17.1 +/-    1.46      19.2 +/-    1.46  0.050 / 0.060
G20     47.3           43.2               15.0 +/-    1.16      20.8 +/-    1.16  0.090 / 0.050
G21     352.0          67.9               16.7 +/-    0.38      17.9 +/-    0.38  0.210 / 0.310
G26     264.7          12.1               17.5 +/-    1.33      46.7 +/-    1.33  0.240 / 0.410
G27     321.3          12.8               11.1 +/-    2.59      29.2 +/-    2.59  0.140 / 0.160
G29     163.9          35.1               20.9 +/-    0.70      33.2 +/-    0.70  0.140 / 0.100