PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-17:58:00
G08     302.6          21.3                7.9 +/-    1.20      16.8 +/-    1.20  0.070 / 0.100
G10     346.1          61.8                6.9 +/-    0.49       7.8 +/-    0.49  0.060 / 0.110
G14     223.0          38.2                9.0 +/-    1.25      13.5 +/-    1.25  0.030 / 0.030
G18     53.1           54.6                7.3 +/-    0.29       8.8 +/-    0.29  0.030 / 0.040
G24     66.4           29.5                7.5 +/-    0.45      13.3 +/-    0.45  0.030 / 0.040
G27     263.4          35.5                9.9 +/-    0.70      15.6 +/-    0.70  0.020 / 0.030
G32     231.5          58.7                9.7 +/-    0.70      11.2 +/-    0.70  0.050 / 0.100