PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/07-19:28:00
G08     273.8          20.4                9.3 +/-    1.83      20.3 +/-    1.83  0.450 / 0.480
G10     47.1           61.1                7.5 +/-    0.82       8.5 +/-    0.82  0.250 / 0.330
G11     315.7          12.5                6.4 +/-    5.51      17.0 +/-    5.51  0.300 / 0.300
G14     254.2          62.2                8.8 +/-    0.68       9.8 +/-    0.68  0.330 / 0.310
G18     86.3           39.1               10.1 +/-    0.86      14.9 +/-    0.86  0.110 / 0.170
G21     151.8          16.8                8.8 +/-    1.73      21.0 +/-    1.73  0.110 / 0.170
G24     43.3           15.8                7.4 +/-    2.48      18.1 +/-    2.48  0.020 / 0.020
G27     235.7          19.9               10.5 +/-    4.02      23.3 +/-    4.02  0.030 / 0.020
G31     181.1          22.0               10.4 +/-    1.89      21.9 +/-    1.89  0.130 / 0.250
G32     307.1          75.7                8.3 +/-    0.48       8.6 +/-    0.48  0.110 / 0.250