PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/02-02:27:50
G08     272.2          18.4                6.8 +/-    1.01      15.7 +/-    1.01  0.140 / 0.270
G10     61.4           57.4                5.7 +/-    0.48       6.7 +/-    0.48  0.170 / 0.240
G14     262.6          64.9                6.4 +/-    0.89       7.0 +/-    0.89  0.040 / 0.040
G18     312.9          31.8                7.5 +/-    1.60      12.7 +/-    1.60  0.030 / 0.030
G20     94.6           37.4                5.5 +/-    0.96       8.4 +/-    0.96  0.040 / 0.050
G21     155.2          17.1                5.9 +/-    1.53      14.0 +/-    1.53  0.040 / 0.050
G24     40.5           11.0                5.1 +/-    2.24      14.1 +/-    2.24  0.100 / 0.280
G27     232.9          17.0                8.9 +/-    2.75      21.2 +/-    2.75  0.080 / 0.230
G31     177.3          30.5                9.0 +/-    1.85      15.6 +/-    1.85  0.140 / 0.290
G32     331.9          74.9                8.1 +/-    0.85       8.3 +/-    0.85  0.150 / 0.380