PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/20-23:42:30
G08     311.6          17.1                7.1 +/-    2.19      16.9 +/-    2.19  0.040 / 0.040
G10     338.8          61.0                6.6 +/-    0.58       7.4 +/-    0.58  0.030 / 0.050
G14     218.6          30.9                8.8 +/-    3.16      15.1 +/-    3.16  0.100 / 0.240
G20     41.5           59.4                7.4 +/-    0.60       8.4 +/-    0.60  0.100 / 0.190
G21     136.1          56.3                9.0 +/-    0.73      10.5 +/-    0.73  0.160 / 0.270
G24     73.0           30.3                8.0 +/-    1.59      13.8 +/-    1.59  0.190 / 0.270
G27     273.1          37.4                8.5 +/-    1.93      12.9 +/-    1.93  0.120 / 0.060
G32     224.2          53.8                9.1 +/-    1.87      11.0 +/-    1.87  0.090 / 0.070