PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-15:42:50
G07     331.7          57.5               14.3 +/-    0.66      16.6 +/-    0.66  0.030 / 0.060
G08     102.8          52.2               16.8 +/-    0.61      20.6 +/-    0.61  0.030 / 0.050
G09     191.5          73.9               17.2 +/-    0.70      17.8 +/-    0.70  0.030 / 0.050
G11     146.6          12.8               15.3 +/-    1.75      40.1 +/-    1.75  0.030 / 0.060
G23     154.1          38.2               16.1 +/-    1.40      24.1 +/-    1.40  0.060 / 0.100
G27     55.2           31.7               14.4 +/-    0.68      24.3 +/-    0.68  0.060 / 0.100
G28     237.2          29.4               17.4 +/-    1.68      30.9 +/-    1.68  0.100 / 0.430
G30     302.0          35.3               14.6 +/-    0.97      23.0 +/-    0.97  0.080 / 0.420