PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/22-01:28:00
G08     317.0          13.9                7.1 +/-    2.41      18.1 +/-    2.41  0.040 / 0.040
G10     323.0          58.7               10.5 +/-    0.59      12.0 +/-    0.59  0.050 / 0.050
G14     214.7          24.1               14.4 +/-    2.68      28.7 +/-    2.68  0.260 / 0.250
G15     46.0           15.2                6.7 +/-    2.53      16.7 +/-    2.53  0.220 / 0.340
G20     24.2           62.7               12.0 +/-    1.63      13.4 +/-    1.63  0.070 / 0.080
G21     126.8          63.7               14.2 +/-    0.55      15.7 +/-    0.55  0.070 / 0.080
G24     82.0           30.1               11.9 +/-    1.67      20.8 +/-    1.67  0.110 / 0.170
G27     284.0          37.8               12.4 +/-    0.77      18.7 +/-    0.77  0.080 / 0.190
G32     217.9          44.9               13.8 +/-    0.75      18.6 +/-    0.75  0.130 / 0.320