PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-07:28:10
G07     41.5           69.3                6.2 +/-    0.93       6.6 +/-    0.93  0.030 / 0.030
G08     56.7           45.3                5.9 +/-    0.68       7.9 +/-    0.68  0.020 / 0.030
G09     177.5          41.0                6.8 +/-    1.22       9.8 +/-    1.22  0.080 / 0.200
G11     125.6          33.0                7.1 +/-    0.93      11.7 +/-    0.93  0.300 / 0.220
G18     107.8          14.0                5.4 +/-    3.10      13.9 +/-    3.10  0.070 / 0.060
G23     160.1          11.7                4.9 +/-    3.50      13.1 +/-    3.50  0.060 / 0.060
G27     38.1           11.7                3.5 +/-    1.25       9.5 +/-    1.25  0.150 / 0.310
G28     262.0          43.7                6.8 +/-    2.59       9.4 +/-    2.59  0.120 / 0.360
G30     324.8          54.9                4.8 +/-    0.93       5.8 +/-    0.93  0.060 / 0.040