PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-01:57:50
G08     317.4          14.2                7.7 +/-    1.31      19.5 +/-    1.31  0.040 / 0.050
G10     309.1          55.0                7.3 +/-    0.42       8.7 +/-    0.42  0.030 / 0.050
G14     212.7          21.4               11.6 +/-    1.87      24.6 +/-    1.87  0.080 / 0.100
G15     45.6           22.8                5.9 +/-    0.88      12.0 +/-    0.88  0.090 / 0.110
G18     13.6           64.4                7.9 +/-    0.48       8.7 +/-    0.48  0.030 / 0.050
G20     77.9           11.5                8.3 +/-    2.27      22.4 +/-    2.27  0.040 / 0.040
G21     117.3          67.8               10.1 +/-    1.27      10.8 +/-    1.27  0.080 / 0.260
G24     89.7           29.3                8.4 +/-    0.79      14.9 +/-    0.79  0.080 / 0.210
G27     288.6          37.6                8.3 +/-    0.76      12.6 +/-    0.76  0.050 / 0.090
G32     215.2          39.2               11.0 +/-    0.92      16.2 +/-    0.92  0.080 / 0.090