PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/15-20:13:00
G01     309.4          31.3                8.7 +/-    1.52      14.8 +/-    1.52  0.090 / 0.100
G10     102.9          42.6               10.0 +/-    0.52      14.0 +/-    0.52  0.120 / 0.170
G11     285.7          28.0                9.0 +/-    1.58      16.4 +/-    1.58  0.070 / 0.120
G14     350.8          68.0                8.3 +/-    0.77       8.9 +/-    0.77  0.060 / 0.110
G18     115.8          14.9                9.5 +/-    0.76      23.7 +/-    0.76  0.030 / 0.040
G22     308.5          23.1                7.1 +/-    1.30      14.5 +/-    1.30  0.030 / 0.040
G25     84.6           15.8                8.7 +/-    0.95      21.4 +/-    0.95  0.040 / 0.060
G31     172.0          60.6               13.6 +/-    0.72      15.4 +/-    0.72  0.040 / 0.040
G32     32.0           55.2                8.0 +/-    0.75       9.6 +/-    0.75  0.060 / 0.230