PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-16:57:50
G05     46.1           25.5                8.5 +/-    0.98      16.4 +/-    0.98  0.050 / 0.110
G13     83.5           35.1               11.2 +/-    0.62      17.8 +/-    0.62  0.050 / 0.090
G15     132.5          47.8               12.2 +/-    1.18      15.8 +/-    1.18  0.060 / 0.110
G20     242.9          33.3               12.1 +/-    0.91      19.8 +/-    0.91  0.080 / 0.090
G21     306.9          41.9                8.9 +/-    1.32      12.5 +/-    1.32  0.050 / 0.110
G25     203.4          17.3               11.3 +/-    1.94      26.5 +/-    1.94  0.050 / 0.100
G26     294.6          20.1                8.8 +/-    2.15      19.3 +/-    2.15  0.130 / 0.360
G29     141.4          81.3                9.4 +/-    0.67       9.5 +/-    0.67  0.080 / 0.260