PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/27-23:43:00
G10     269.9          41.1               12.7 +/-    0.99      18.2 +/-    0.99  0.140 / 0.250
G13     40.5           15.5                8.6 +/-    1.53      21.1 +/-    1.53  0.190 / 0.240
G15     56.6           46.8               10.2 +/-    1.38      13.3 +/-    1.38  0.040 / 0.040
G16     277.4          11.7               11.8 +/-    6.25      31.6 +/-    6.25  0.040 / 0.040
G20     301.7          60.9               11.6 +/-    0.55      13.0 +/-    0.55  0.140 / 0.470
G21     6.9            72.7               12.2 +/-    0.68      12.7 +/-    0.68  0.130 / 0.280
G24     119.5          15.5               12.3 +/-    1.90      30.3 +/-    1.90  0.030 / 0.040
G27     318.1          20.0                8.5 +/-    1.41      18.6 +/-    1.41  0.040 / 0.050
G29     167.1          28.5               14.7 +/-    0.94      26.5 +/-    0.94  0.280 / 0.560