PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-09:27:50
G01     107.5          24.0                6.1 +/-    1.16      12.2 +/-    1.16  0.050 / 0.030
G07     104.9          57.8                6.3 +/-    0.91       7.3 +/-    0.91  0.050 / 0.030
G08     42.5           24.8                4.1 +/-    1.68       8.0 +/-    1.68  0.090 / 0.120
G09     174.7          15.4                4.3 +/-    1.75      10.6 +/-    1.75  0.090 / 0.100
G11     93.1           44.1                6.1 +/-    0.85       8.3 +/-    0.85  0.180 / 0.340
G13     310.5          28.6                4.7 +/-    0.91       8.5 +/-    0.91  0.180 / 0.260
G17     204.8          33.1                5.8 +/-    1.66       9.6 +/-    1.66  0.030 / 0.040
G18     81.8           23.9                3.3 +/-    1.06       6.7 +/-    1.06  0.030 / 0.030
G28     300.8          57.1                4.2 +/-    1.85       4.9 +/-    1.85  0.130 / 0.080
G30     8.5            76.6                4.5 +/-    0.21       4.6 +/-    0.21  0.140 / 0.180