PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-19:43:10
G10     246.2          24.7               13.7 +/-    1.24      27.0 +/-    1.24  0.140 / 0.650
G13     57.9           31.3                9.9 +/-    1.50      16.9 +/-    1.50  0.130 / 0.670
G15     99.5           58.3               12.2 +/-    1.32      14.0 +/-    1.32  0.050 / 0.050
G16     300.5          15.7                8.1 +/-    2.34      19.7 +/-    2.34  0.040 / 0.050
G20     264.1          48.2               11.2 +/-    3.00      14.5 +/-    3.00  0.060 / 0.150
G21     327.3          55.8               11.4 +/-    0.73      13.4 +/-    0.73  0.060 / 0.180
G26     273.1          17.3               10.0 +/-    3.53      23.6 +/-    3.53  0.030 / 0.040
G29     161.8          56.6               12.5 +/-    0.58      14.6 +/-    0.58  0.030 / 0.040