PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-17:57:40
G08     280.8          23.2               10.9 +/-    1.61      22.2 +/-    1.61  0.030 / 0.030
G10     30.6           62.3                9.3 +/-    0.52      10.4 +/-    0.52  0.030 / 0.030
G14     240.2          55.6               11.3 +/-    0.80      13.3 +/-    0.80  0.060 / 0.060
G20     78.5           46.4               10.4 +/-    0.65      13.8 +/-    0.65  0.050 / 0.070
G21     150.2          27.7               11.0 +/-    1.32      20.2 +/-    1.32  0.100 / 0.170
G24     45.4           16.9                7.9 +/-    0.73      18.7 +/-    0.73  0.150 / 0.200
G27     247.2          26.5               11.4 +/-    2.60      21.5 +/-    2.60  0.130 / 0.150
G31     183.7          12.6               11.3 +/-    3.01      29.9 +/-    3.01  0.110 / 0.110
G32     271.3          73.8               11.7 +/-    0.70      12.2 +/-    0.70  0.070 / 0.180