PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-07:27:50
G07     29.5           69.0                4.3 +/-    0.67       4.6 +/-    0.67  0.040 / 0.050
G08     61.6           48.1                4.2 +/-    0.27       5.4 +/-    0.27  0.040 / 0.060
G09     178.0          45.6                7.1 +/-    1.18       9.4 +/-    1.18  0.030 / 0.040
G11     129.3          30.3                5.9 +/-    0.98      10.3 +/-    0.98  0.030 / 0.040
G18     111.3          11.8                3.5 +/-    3.20       9.5 +/-    3.20  0.120 / 0.320
G23     159.9          15.6                4.6 +/-    1.66      11.3 +/-    1.66  0.090 / 0.290
G27     39.4           15.1                2.0 +/-    2.87       5.0 +/-    2.87  0.120 / 0.210
G28     257.2          41.0                5.3 +/-    0.87       7.5 +/-    0.87  0.140 / 0.210
G30     321.1          51.6                4.7 +/-    1.32       5.8 +/-    1.32  0.040 / 0.060