PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/06-20:27:40
G01     315.7          24.2                9.0 +/-    2.05      18.0 +/-    2.05  0.230 / 0.270
G10     90.7           49.2                9.0 +/-    1.24      11.5 +/-    1.24  0.140 / 0.310
G11     296.0          26.1                9.4 +/-    1.53      17.9 +/-    1.53  0.030 / 0.040
G14     323.5          70.9                9.3 +/-    0.62       9.7 +/-    0.62  0.050 / 0.030
G18     108.7          22.2                9.2 +/-    1.81      19.1 +/-    1.81  0.140 / 0.170
G22     304.2          15.5                7.4 +/-    0.61      18.2 +/-    0.61  0.170 / 0.170
G25     93.8           12.0               10.8 +/-    1.50      28.9 +/-    1.50  0.040 / 0.030
G31     176.3          48.9               11.8 +/-    0.56      15.0 +/-    0.56  0.040 / 0.040
G32     18.5           62.6                9.1 +/-    0.86      10.2 +/-    0.86  0.160 / 0.190