PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-16:42:40
G10     250.5          28.5               10.9 +/-    1.78      19.8 +/-    1.78  0.150 / 0.470
G13     53.0           28.6               10.2 +/-    1.27      18.3 +/-    1.27  0.160 / 0.440
G15     83.5           56.6               12.1 +/-    1.00      14.2 +/-    1.00  0.040 / 0.050
G16     295.0          16.0                8.4 +/-    2.66      20.5 +/-    2.66  0.040 / 0.040
G20     272.0          52.7               11.9 +/-    2.52      14.5 +/-    2.52  0.100 / 0.180
G21     334.1          59.7               11.6 +/-    0.48      13.2 +/-    0.48  0.080 / 0.140
G26     268.3          15.5                8.9 +/-    3.28      21.8 +/-    3.28  0.030 / 0.030
G29     163.8          51.3               14.3 +/-    0.66      17.7 +/-    0.66  0.040 / 0.040