PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/19-16:58:10
G10     247.9          23.6               11.6 +/-    2.53      23.3 +/-    2.53  0.140 / 0.380
G13     57.7           32.8                8.6 +/-    0.74      14.2 +/-    0.74  0.170 / 0.420
G15     91.1           57.1               11.0 +/-    0.41      12.8 +/-    0.41  0.050 / 0.050
G16     304.3          13.1                7.9 +/-    1.72      20.6 +/-    1.72  0.050 / 0.060
G18     265.7          55.3               12.5 +/-    0.72      14.8 +/-    0.72  0.050 / 0.050
G20     39.0           53.1                9.2 +/-    0.47      11.1 +/-    0.47  0.050 / 0.050
G21     335.4          61.0               11.3 +/-    0.66      12.7 +/-    0.66  0.050 / 0.110
G26     274.6          16.3               10.6 +/-    1.48      25.4 +/-    1.48  0.040 / 0.110
G29     161.1          47.9               13.4 +/-    1.49      17.4 +/-    1.49  0.140 / 0.350