PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-23:42:50
G10     250.4          25.7               12.6 +/-    2.03      24.3 +/-    2.03  0.050 / 0.070
G13     54.8           31.4                9.7 +/-    0.86      16.5 +/-    0.86  0.060 / 0.070
G15     89.7           58.2               12.7 +/-    0.40      14.7 +/-    0.40  0.110 / 0.340
G16     297.9          14.5                8.4 +/-    2.86      21.0 +/-    2.86  0.110 / 0.340
G18     268.1          55.1               12.8 +/-    0.81      15.2 +/-    0.81  0.060 / 0.110
G20     43.4           47.6                9.1 +/-    0.32      11.8 +/-    0.32  0.060 / 0.160
G21     333.5          60.4               10.3 +/-    1.06      11.6 +/-    1.06  0.040 / 0.060
G26     270.2          15.5               12.1 +/-    1.81      29.6 +/-    1.81  0.050 / 0.060
G29     163.8          47.3               12.9 +/-    0.64      16.8 +/-    0.64  0.050 / 0.070