PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-22:43:10
G07     329.1          56.4                8.1 +/-    1.25       9.5 +/-    1.25  0.050 / 0.080
G08     106.3          51.5               10.6 +/-    0.60      13.1 +/-    0.60  0.050 / 0.080
G09     200.4          76.9               10.1 +/-    1.28      10.3 +/-    1.28  0.100 / 0.200
G11     149.3          10.8                1.7 +/-   26.37       4.6 +/-   26.37  0.090 / 0.240
G16     46.1           10.0                7.2 +/-    4.26      20.0 +/-    4.26  0.040 / 0.050
G23     154.3          43.0               10.1 +/-    0.77      14.0 +/-    0.77  0.040 / 0.050
G27     56.7           32.2                7.8 +/-    0.67      13.1 +/-    0.67  0.050 / 0.060
G28     235.8          28.3               11.6 +/-    1.76      21.1 +/-    1.76  0.040 / 0.060
G30     302.7          37.2                8.3 +/-    1.56      12.6 +/-    1.56  0.270 / 0.660