PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-00:43:10
G10     249.1          25.5               15.0 +/-    1.77      29.1 +/-    1.77  0.050 / 0.040
G13     55.2           30.8               10.4 +/-    1.11      18.0 +/-    1.11  0.050 / 0.050
G15     94.0           58.7               11.3 +/-    1.47      12.9 +/-    1.47  0.070 / 0.120
G16     296.1          16.0               11.1 +/-    1.77      27.1 +/-    1.77  0.090 / 0.130
G20     259.5          36.4               12.7 +/-    4.07      19.6 +/-    4.07  0.120 / 0.300
G21     330.4          58.3               11.0 +/-    1.18      12.7 +/-    1.18  0.140 / 0.340
G26     268.0          16.4               14.5 +/-    2.60      34.8 +/-    2.60  0.040 / 0.040
G29     164.8          53.1               11.0 +/-    0.97      13.3 +/-    0.97  0.030 / 0.040