PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-20:57:40
G01     309.3          31.3               14.9 +/-    2.07      25.3 +/-    2.07  0.080 / 0.120
G10     102.9          42.6               16.0 +/-    0.61      22.4 +/-    0.61  0.080 / 0.100
G11     285.4          28.1               11.7 +/-    1.47      21.3 +/-    1.47  0.030 / 0.030
G14     351.5          68.0               13.8 +/-    0.29      14.8 +/-    0.29  0.030 / 0.030
G18     115.8          15.1               16.1 +/-    1.58      40.0 +/-    1.58  0.070 / 0.190
G22     308.4          22.9               15.1 +/-    2.20      30.9 +/-    2.20  0.160 / 0.140
G25     84.4           15.7               18.0 +/-    3.51      43.9 +/-    3.51  0.030 / 0.030
G31     172.8          60.1               17.1 +/-    0.62      19.4 +/-    0.62  0.030 / 0.030
G32     31.5           55.4               13.2 +/-    0.66      15.7 +/-    0.66  0.070 / 0.110