PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-19:27:40
G10     248.5          24.1               15.7 +/-    1.61      31.3 +/-    1.61  0.030 / 0.050
G13     57.1           32.6               13.9 +/-    0.96      23.2 +/-    0.96  0.040 / 0.050
G15     90.9           57.4               15.6 +/-    0.64      18.1 +/-    0.64  0.130 / 0.430
G16     302.8          13.5               12.2 +/-    2.42      31.4 +/-    2.42  0.160 / 0.450
G18     266.1          55.1               16.0 +/-    0.78      19.1 +/-    0.78  0.040 / 0.070
G20     40.5           51.2               13.6 +/-    0.48      16.9 +/-    0.48  0.040 / 0.060
G21     333.7          60.2               15.3 +/-    0.88      17.3 +/-    0.88  0.050 / 0.120
G26     275.3          15.9               13.6 +/-    1.66      33.2 +/-    1.66  0.050 / 0.130
G29     161.5          47.2               15.8 +/-    1.00      20.7 +/-    1.00  0.130 / 0.340