PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-19:43:10
G07     334.9          59.1               13.8 +/-    0.56      15.8 +/-    0.56  0.040 / 0.050
G08     102.5          50.3               14.4 +/-    0.68      18.1 +/-    0.68  0.030 / 0.040
G09     201.6          78.1               14.2 +/-    0.36      14.5 +/-    0.36  0.030 / 0.030
G11     146.7          11.8               19.6 +/-    2.97      52.5 +/-    2.97  0.030 / 0.030
G16     45.1           14.8               10.7 +/-    2.85      26.7 +/-    2.85  0.090 / 0.070
G23     154.7          47.0               14.2 +/-    0.98      18.7 +/-    0.98  0.090 / 0.090
G27     61.0           34.9               13.3 +/-    1.31      21.2 +/-    1.31  0.240 / 0.160
G28     233.4          23.0               15.8 +/-    1.77      32.3 +/-    1.77  0.220 / 0.160
G30     299.1          33.0               12.3 +/-    2.73      20.3 +/-    2.73  0.040 / 0.040