PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/30-01:13:10
G08     310.7          17.7                8.3 +/-    1.77      19.3 +/-    1.77  0.090 / 0.090
G10     339.5          61.1                9.1 +/-    0.77      10.2 +/-    0.77  0.050 / 0.070
G14     218.8          31.9               10.9 +/-    2.46      18.4 +/-    2.46  0.040 / 0.050
G20     41.2           59.6                9.5 +/-    1.05      10.9 +/-    1.05  0.030 / 0.050
G21     136.5          55.8               11.5 +/-    0.84      13.6 +/-    0.84  0.090 / 0.170
G24     72.2           30.1                9.9 +/-    0.99      17.2 +/-    0.99  0.080 / 0.170
G27     272.8          37.3               10.0 +/-    2.74      15.3 +/-    2.74  0.110 / 0.100
G32     224.6          53.5               11.6 +/-    2.04      14.1 +/-    2.04  0.110 / 0.090