PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-17:13:10
G08     318.7          12.7                6.6 +/-    1.45      17.2 +/-    1.45  0.070 / 0.080
G10     309.3          55.1                6.2 +/-    0.56       7.4 +/-    0.56  0.050 / 0.080
G14     212.9          19.6                8.6 +/-    1.98      19.1 +/-    1.98  0.070 / 0.070
G15     45.4           19.6                5.7 +/-    0.64      12.7 +/-    0.64  0.060 / 0.090
G18     20.3           63.2                5.9 +/-    0.65       6.5 +/-    0.65  0.030 / 0.040
G20     76.5           15.0                6.7 +/-    1.14      16.7 +/-    1.14  0.030 / 0.040
G24     89.6           29.2                7.5 +/-    0.90      13.3 +/-    0.90  0.120 / 0.340
G27     289.2          37.5                7.2 +/-    1.02      10.9 +/-    1.02  0.080 / 0.290
G32     215.0          39.3               10.1 +/-    1.11      14.9 +/-    1.11  0.080 / 0.110