PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/04-18:42:50
G10     265.4          36.6               14.1 +/-    0.98      21.7 +/-    0.98  0.120 / 0.130
G13     43.1           20.6               12.3 +/-    2.30      26.6 +/-    2.30  0.120 / 0.230
G15     60.0           48.9               12.6 +/-    0.77      16.2 +/-    0.77  0.030 / 0.030
G16     286.2          11.3               11.8 +/-    5.82      32.0 +/-    5.82  0.040 / 0.030
G18     300.2          64.6               13.2 +/-    0.70      14.5 +/-    0.70  0.060 / 0.060
G20     53.0           36.8               13.0 +/-    1.01      20.0 +/-    1.01  0.040 / 0.070
G21     10.0           72.5               14.3 +/-    0.64      15.0 +/-    0.64  0.220 / 0.170
G24     122.6          13.1               17.8 +/-    2.30      46.4 +/-    2.30  0.130 / 0.250
G27     318.5          19.1               12.5 +/-    1.92      28.2 +/-    1.92  0.240 / 0.400
G29     165.1          26.6               14.0 +/-    0.95      26.3 +/-    0.95  0.190 / 0.400