PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-18:28:10
G08     288.3          22.8                8.6 +/-    1.66      17.7 +/-    1.66  0.080 / 0.100
G10     16.9           63.2                7.7 +/-    0.62       8.5 +/-    0.62  0.070 / 0.130
G14     235.0          51.0               10.9 +/-    1.12      13.6 +/-    1.12  0.040 / 0.030
G18     71.3           47.1                6.8 +/-    0.59       8.9 +/-    0.59  0.040 / 0.030
G24     52.7           24.1                7.0 +/-    0.48      13.9 +/-    0.48  0.020 / 0.040
G27     247.8          28.7                9.0 +/-    1.57      16.1 +/-    1.57  0.030 / 0.030
G32     256.8          70.5                9.2 +/-    0.81       9.7 +/-    0.81  0.070 / 0.100