PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-00:27:30
G08     305.7          20.9               25.4 +/-    2.36      54.7 +/-    2.36  0.040 / 0.050
G10     335.5          60.4               21.9 +/-    0.65      24.8 +/-    0.65  0.050 / 0.050
G14     219.8          35.1               28.2 +/-    1.66      44.6 +/-    1.66  0.030 / 0.020
G18     42.4           58.5               23.2 +/-    0.72      26.7 +/-    0.72  0.030 / 0.020
G21     136.5          53.3               24.2 +/-    0.37      29.3 +/-    0.37  0.110 / 0.070
G24     72.3           30.4               23.6 +/-    1.73      41.0 +/-    1.73  0.110 / 0.080
G27     269.2          37.0               25.6 +/-    2.25      39.1 +/-    2.25  0.100 / 0.070
G32     226.1          52.5               26.7 +/-    2.70      32.7 +/-    2.70  0.060 / 0.070