PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-16:12:40
G05     50.8           14.2                8.4 +/-    2.27      21.4 +/-    2.27  0.250 / 0.220
G10     241.2          20.1               11.8 +/-    2.94      25.9 +/-    2.94  0.270 / 0.260
G13     65.0           33.7               11.2 +/-    1.06      18.2 +/-    1.06  0.100 / 0.390
G15     107.1          56.2               12.1 +/-    1.12      14.2 +/-    1.12  0.090 / 0.360
G16     306.4          15.1                8.1 +/-    2.09      20.0 +/-    2.09  0.050 / 0.050
G20     257.3          44.9               13.3 +/-    3.36      17.9 +/-    3.36  0.050 / 0.050
G21     321.2          51.8               11.5 +/-    0.56      14.2 +/-    0.56  0.030 / 0.040
G26     279.7          19.0                8.5 +/-    0.78      19.2 +/-    0.78  0.030 / 0.050
G29     159.0          64.7               12.6 +/-    0.84      13.8 +/-    0.84  0.160 / 0.240