PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-20:43:10
G10     257.0          33.2               11.8 +/-    2.41      19.4 +/-    2.41  0.040 / 0.050
G13     47.3           24.4                9.7 +/-    1.49      19.2 +/-    1.49  0.050 / 0.040
G15     74.2           55.9               11.9 +/-    0.62      14.1 +/-    0.62  0.150 / 0.750
G16     288.5          15.1                8.2 +/-    6.17      20.2 +/-    6.17  0.150 / 0.850
G20     281.1          55.6               11.5 +/-    2.43      13.6 +/-    2.43  0.040 / 0.060
G21     342.5          64.3               12.3 +/-    0.80      13.5 +/-    0.80  0.050 / 0.070
G26     261.7          12.6               13.5 +/-    1.71      35.5 +/-    1.71  0.090 / 0.180
G29     165.4          42.6               12.4 +/-    0.73      17.3 +/-    0.73  0.080 / 0.230