PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/05-13:27:50
G01     59.1           29.8                5.6 +/-    1.46       9.9 +/-    1.46  0.040 / 0.050
G07     141.6          19.4                5.6 +/-    4.06      12.4 +/-    4.06  0.050 / 0.050
G11     48.1           24.6                6.1 +/-    2.30      12.0 +/-    2.30  0.120 / 0.210
G13     261.2          36.1                6.1 +/-    2.54       9.4 +/-    2.54  0.110 / 0.280
G15     294.1          16.2                4.5 +/-    2.79      10.9 +/-    2.79  0.030 / 0.030
G17     249.6          72.7                5.8 +/-    0.62       6.1 +/-    0.62  0.030 / 0.040
G18     41.6           12.4                5.4 +/-    2.20      14.3 +/-    2.20  0.120 / 0.070
G19     231.9          52.3                6.0 +/-    2.63       7.4 +/-    2.63  0.080 / 0.110
G28     24.3           59.6                5.8 +/-    0.53       6.6 +/-    0.53  0.200 / 0.320
G30     143.8          52.1                6.4 +/-    0.53       7.9 +/-    0.53  0.170 / 0.220