PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-21:12:50
G10     260.8          35.7               12.5 +/-    1.37      19.6 +/-    1.37  0.050 / 0.060
G13     44.8           21.8                8.7 +/-    2.03      18.4 +/-    2.03  0.050 / 0.040
G15     67.7           53.7                9.7 +/-    0.68      11.7 +/-    0.68  0.170 / 0.330
G16     284.9          14.3                8.3 +/-    1.42      20.9 +/-    1.42  0.090 / 0.250
G20     287.3          57.6               10.4 +/-    1.70      12.1 +/-    1.70  0.040 / 0.040
G21     348.6          67.0                9.7 +/-    1.03      10.4 +/-    1.03  0.040 / 0.030
G24     126.8          10.4               -0.2 +/-   36.39      -0.5 +/-   36.39  0.100 / 0.330
G26     258.4          10.8               10.1 +/-    1.77      27.8 +/-    1.77  0.090 / 0.300
G27     321.2          13.4                6.9 +/-    2.09      17.9 +/-    2.09  0.200 / 0.300
G29     166.2          38.3               10.8 +/-    0.91      16.1 +/-    0.91  0.160 / 0.320