PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-19:58:00
G07     330.0          57.4               13.1 +/-    0.63      15.3 +/-    0.63  0.040 / 0.040
G08     107.1          49.1               15.8 +/-    0.65      20.1 +/-    0.65  0.030 / 0.040
G09     212.6          80.6               15.1 +/-    0.75      15.3 +/-    0.75  0.070 / 0.060
G11     148.6          10.0                0.4 +/-   29.99       1.3 +/-   29.99  0.060 / 0.080
G16     44.3           17.0               10.3 +/-    2.84      24.5 +/-    2.84  0.370 / 0.450
G23     153.4          50.3               16.6 +/-    0.50      20.9 +/-    0.50  0.330 / 0.410
G27     64.4           36.1               13.6 +/-    1.30      21.2 +/-    1.30  0.030 / 0.020
G28     231.4          20.6               16.2 +/-    2.94      35.0 +/-    2.94  0.030 / 0.020
G30     296.7          30.9               12.3 +/-    1.60      21.1 +/-    1.60  0.230 / 0.240