PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/06-19:57:30
G07     327.2          56.5               11.8 +/-    0.47      13.9 +/-    0.47  0.030 / 0.020
G08     109.9          48.3               12.5 +/-    0.64      16.2 +/-    0.64  0.030 / 0.020
G09     223.4          81.9               12.3 +/-    0.41      12.4 +/-    0.41  0.030 / 0.050
G16     43.8           18.5                3.9 +/-    2.14       8.8 +/-    2.14  0.030 / 0.050
G23     152.6          52.4               13.0 +/-    0.65      16.0 +/-    0.65  0.080 / 0.050
G27     66.7           36.6               11.9 +/-    0.95      18.4 +/-    0.95  0.050 / 0.050
G28     230.2          19.1               12.5 +/-    2.62      28.2 +/-    2.62  0.190 / 0.420
G30     295.2          29.7               11.9 +/-    1.85      21.0 +/-    1.85  0.110 / 0.380