PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/25-08:57:50
G05     51.4           10.9                1.2 +/-    2.46       3.3 +/-    2.46  0.040 / 0.040
G10     240.6          18.4                4.9 +/-    2.07      11.2 +/-    2.07  0.040 / 0.040
G13     66.8           34.6                4.3 +/-    1.27       6.9 +/-    1.27  0.060 / 0.110
G15     111.2          55.9                6.1 +/-    0.73       7.2 +/-    0.73  0.060 / 0.090
G16     312.3          11.9               -0.6 +/-   12.46      -1.7 +/-   12.46  0.080 / 0.160
G20     255.0          42.3                5.9 +/-    2.38       8.2 +/-    2.38  0.120 / 0.110
G21     325.0          54.8                4.5 +/-    0.39       5.4 +/-    0.39  0.190 / 0.380
G26     285.9          17.9                4.0 +/-    0.96       9.3 +/-    0.96  0.170 / 0.400
G29     155.8          59.7                6.7 +/-    0.68       7.6 +/-    0.68  0.030 / 0.040