PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-00:13:10
G10     249.8          25.1               15.4 +/-    1.45      30.0 +/-    1.45  0.110 / 0.290
G13     55.4           31.8               10.4 +/-    1.23      17.6 +/-    1.23  0.090 / 0.310
G15     92.0           58.4               13.2 +/-    0.52      15.2 +/-    0.52  0.050 / 0.040
G16     298.4          14.6                8.4 +/-    2.06      21.0 +/-    2.06  0.050 / 0.040
G18     266.8          54.4               12.7 +/-    2.53      15.2 +/-    2.53  0.150 / 0.270
G20     43.0           48.1               10.2 +/-    1.22      13.2 +/-    1.22  0.100 / 0.260
G21     332.3          59.7               10.9 +/-    0.71      12.4 +/-    0.71  0.100 / 0.170
G26     270.6          15.8               13.7 +/-    1.28      33.4 +/-    1.28  0.080 / 0.150
G29     163.7          48.5               14.2 +/-    0.70      18.3 +/-    0.70  0.050 / 0.060