PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/29-08:12:50
G07     334.6          59.0                5.0 +/-    0.46       5.7 +/-    0.46  0.030 / 0.040
G08     107.9          51.7                5.9 +/-    0.98       7.3 +/-    0.98  0.030 / 0.030
G09     192.3          75.3                5.3 +/-    0.51       5.5 +/-    0.51  0.050 / 0.080
G11     147.4          12.8                3.2 +/-    1.46       8.5 +/-    1.46  0.050 / 0.090
G23     154.1          41.1                5.3 +/-    0.64       7.5 +/-    0.64  0.040 / 0.030
G27     57.2           32.7                3.5 +/-    1.64       5.8 +/-    1.64  0.030 / 0.020
G28     234.2          21.8                5.3 +/-    3.09      11.1 +/-    3.09  0.040 / 0.050
G30     300.3          33.6                3.8 +/-    2.16       6.1 +/-    2.16  0.040 / 0.040