PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-23:13:10
G08     318.8          12.9               10.7 +/-    1.93      28.1 +/-    1.93  0.040 / 0.030
G10     306.1          54.1               11.4 +/-    0.70      13.7 +/-    0.70  0.040 / 0.040
G14     212.0          19.3               17.7 +/-    2.57      39.6 +/-    2.57  0.030 / 0.030
G15     45.5           23.1                9.9 +/-    2.30      20.3 +/-    2.30  0.030 / 0.030
G18     12.0           64.6               11.8 +/-    0.71      12.9 +/-    0.71  0.080 / 0.130
G20     76.2           13.5               11.4 +/-    2.13      29.4 +/-    2.13  0.090 / 0.130
G21     114.4          68.3               13.9 +/-    0.62      14.8 +/-    0.62  0.080 / 0.080
G24     92.0           28.8               14.2 +/-    1.82      25.5 +/-    1.82  0.040 / 0.080
G27     291.2          37.2               12.7 +/-    3.80      19.4 +/-    3.80  0.230 / 0.500
G32     214.3          35.7               15.2 +/-    1.63      23.8 +/-    1.63  0.180 / 0.380