PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-19:43:00
G10     253.7          30.9               12.6 +/-    1.94      21.7 +/-    1.94  0.050 / 0.040
G13     49.9           26.6               10.6 +/-    2.25      19.9 +/-    2.25  0.040 / 0.040
G15     79.9           56.9               11.8 +/-    0.66      13.8 +/-    0.66  0.150 / 0.160
G16     291.8          15.6                9.3 +/-    1.17      22.7 +/-    1.17  0.100 / 0.210
G20     276.1          53.9               12.3 +/-    3.06      14.8 +/-    3.06  0.040 / 0.030
G21     337.8          61.9               12.6 +/-    0.38      14.1 +/-    0.38  0.030 / 0.040
G26     264.8          14.1                8.8 +/-    2.61      22.3 +/-    2.61  0.090 / 0.570
G29     164.7          46.8               12.8 +/-    1.12      16.8 +/-    1.12  0.100 / 0.480