PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-21:42:50
G10     248.7          25.3               13.3 +/-    1.63      25.8 +/-    1.63  0.040 / 0.050
G13     55.5           30.9               10.0 +/-    1.12      17.2 +/-    1.12  0.050 / 0.050
G15     98.3           59.4               10.1 +/-    1.48      11.5 +/-    1.48  0.120 / 0.370
G16     296.1          16.2                8.7 +/-    0.81      21.1 +/-    0.81  0.140 / 0.370
G20     251.1          13.2                5.0 +/-    3.76      13.1 +/-    3.76  0.060 / 0.130
G21     329.6          57.8               10.2 +/-    0.62      11.8 +/-    0.62  0.100 / 0.110
G26     268.3          16.6               12.3 +/-    2.15      29.3 +/-    2.15  0.030 / 0.040
G29     164.6          53.9               11.9 +/-    0.64      14.4 +/-    0.64  0.020 / 0.040