PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/08-20:28:10
G10     261.3          36.1               13.7 +/-    1.11      21.3 +/-    1.11  0.050 / 0.050
G13     44.5           21.4                7.8 +/-    2.38      16.5 +/-    2.38  0.050 / 0.050
G15     67.5           53.8               10.2 +/-    0.67      12.3 +/-    0.67  0.150 / 0.270
G16     284.2          14.3                9.8 +/-    1.25      24.9 +/-    1.25  0.120 / 0.340
G20     288.5          58.0               10.6 +/-    1.51      12.2 +/-    1.51  0.030 / 0.040
G21     349.4          67.3               10.5 +/-    0.92      11.3 +/-    0.92  0.030 / 0.040
G24     126.6          10.7                4.5 +/-   40.82      12.5 +/-   40.82  0.220 / 0.350
G26     257.9          10.6               12.2 +/-    1.12      33.6 +/-    1.12  0.160 / 0.340
G27     321.1          13.8                7.0 +/-    2.28      18.0 +/-    2.28  0.100 / 0.310
G29     166.3          38.0               12.4 +/-    1.02      18.7 +/-    1.02  0.100 / 0.390