PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/24-18:27:50
G08     270.0          18.8                9.1 +/-    4.44      20.6 +/-    4.44  0.100 / 0.200
G10     56.0           59.7               11.9 +/-    0.85      13.5 +/-    0.85  0.350 / 0.180
G11     313.5          15.0                7.6 +/-    2.26      19.0 +/-    2.26  0.100 / 0.110
G14     262.2          64.8               13.0 +/-    0.81      14.2 +/-    0.81  0.080 / 0.110
G18     90.7           36.1               11.0 +/-    1.05      17.1 +/-    1.05  0.110 / 0.220
G21     152.7          12.9               11.7 +/-    1.07      30.6 +/-    1.07  0.100 / 0.090
G24     41.1           12.7               10.2 +/-    2.37      26.8 +/-    2.37  0.040 / 0.050
G27     232.4          17.0               11.0 +/-    1.80      26.0 +/-    1.80  0.060 / 0.050
G31     179.8          26.9               14.2 +/-    1.91      26.6 +/-    1.91  0.020 / 0.020
G32     327.7          75.0               12.7 +/-    0.37      13.1 +/-    0.37  0.020 / 0.020