PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/28-01:58:00
G08     284.9          23.3                7.7 +/-    1.30      15.6 +/-    1.30  0.050 / 0.130
G10     19.4           63.2                5.8 +/-    0.38       6.4 +/-    0.38  0.050 / 0.130
G14     237.1          53.8                8.9 +/-    1.12      10.8 +/-    1.12  0.110 / 0.140
G18     70.6           48.4                7.1 +/-    0.37       9.1 +/-    0.37  0.100 / 0.130
G21     148.8          33.3                9.9 +/-    1.63      16.3 +/-    1.63  0.040 / 0.040
G24     51.7           23.7                6.9 +/-    0.62      14.0 +/-    0.62  0.040 / 0.030
G27     246.2          27.8               10.0 +/-    1.49      18.3 +/-    1.49  0.040 / 0.060
G31     183.1          11.1                4.9 +/-   25.06      13.3 +/-   25.06  0.050 / 0.070
G32     259.1          70.5                8.4 +/-    0.73       8.9 +/-    0.73  0.080 / 0.120