PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-19:43:00
G10     249.9          26.4               10.6 +/-    1.47      20.2 +/-    1.47  0.050 / 0.040
G13     54.2           30.1                9.3 +/-    2.50      16.2 +/-    2.50  0.040 / 0.040
G15     96.9           59.9                9.9 +/-    1.29      11.2 +/-    1.29  0.100 / 0.300
G16     296.0          15.7                7.5 +/-    1.97      18.4 +/-    1.97  0.120 / 0.360
G20     268.7          50.3               10.6 +/-    2.54      13.3 +/-    2.54  0.090 / 0.120
G21     333.3          59.8                9.8 +/-    0.52      11.2 +/-    0.52  0.110 / 0.190
G26     268.7          15.9                9.5 +/-    2.47      23.2 +/-    2.47  0.030 / 0.030
G29     164.4          51.3               11.6 +/-    0.57      14.4 +/-    0.57  0.030 / 0.030