PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/09-20:12:50
G01     316.3          23.2                8.3 +/-    1.53      16.9 +/-    1.53  0.070 / 0.270
G10     89.0           50.0                8.2 +/-    0.66      10.4 +/-    0.66  0.130 / 0.300
G11     297.4          25.6                8.3 +/-    0.86      16.0 +/-    0.86  0.170 / 0.190
G14     319.3          71.1                9.2 +/-    0.42       9.6 +/-    0.42  0.150 / 0.200
G18     107.8          23.0               10.5 +/-    1.47      21.5 +/-    1.47  0.030 / 0.050
G22     303.6          14.6                7.9 +/-    1.52      19.8 +/-    1.52  0.030 / 0.050
G25     95.0           11.4               12.0 +/-    1.84      32.5 +/-    1.84  0.040 / 0.020
G31     176.5          47.7               11.0 +/-    0.76      14.2 +/-    0.76  0.040 / 0.020
G32     16.7           63.4                8.5 +/-    0.55       9.4 +/-    0.55  0.070 / 0.160