PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-19:13:00
G05     50.5           13.7                8.0 +/-    2.27      20.4 +/-    2.27  0.050 / 0.060
G10     239.9          18.5               11.7 +/-    0.82      26.8 +/-    0.82  0.070 / 0.060
G13     67.3           34.3               10.0 +/-    1.45      16.0 +/-    1.45  0.050 / 0.130
G15     115.2          55.7               11.3 +/-    0.44      13.4 +/-    0.44  0.050 / 0.110
G16     308.5          14.5                5.9 +/-    2.16      14.9 +/-    2.16  0.030 / 0.040
G20     254.6          42.3               10.8 +/-    3.04      15.2 +/-    3.04  0.040 / 0.040
G21     318.7          50.1               10.1 +/-    0.76      12.8 +/-    0.76  0.100 / 0.180
G26     281.5          19.4                8.6 +/-    0.86      19.3 +/-    0.86  0.090 / 0.180
G29     157.7          66.3               11.8 +/-    0.72      12.7 +/-    0.72  0.140 / 0.510