PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-20:13:10
G10     245.2          23.7               14.4 +/-    1.05      29.0 +/-    1.05  0.050 / 0.050
G13     59.2           31.9                8.5 +/-    1.27      14.3 +/-    1.27  0.040 / 0.050
G15     101.5          58.1               11.9 +/-    1.25      13.7 +/-    1.25  0.130 / 0.440
G16     301.8          15.6                8.2 +/-    2.92      20.1 +/-    2.92  0.120 / 0.490
G20     262.5          47.1               12.4 +/-    4.38      16.2 +/-    4.38  0.030 / 0.040
G21     326.0          54.9               11.7 +/-    0.57      13.9 +/-    0.57  0.030 / 0.040
G26     274.3          17.7               12.3 +/-    2.41      28.6 +/-    2.41  0.060 / 0.130
G29     161.2          57.9               12.5 +/-    0.46      14.5 +/-    0.46  0.050 / 0.120