PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/19-22:42:50
G08     275.1          21.3                9.5 +/-    1.77      20.3 +/-    1.77  0.080 / 0.150
G10     41.6           61.9               10.2 +/-    0.49      11.4 +/-    0.49  0.070 / 0.160
G11     316.2          11.9                9.1 +/-    3.06      24.3 +/-    3.06  0.040 / 0.040
G14     250.7          61.3               12.5 +/-    1.23      14.0 +/-    1.23  0.030 / 0.040
G18     83.0           41.5               11.0 +/-    1.14      15.6 +/-    1.14  0.120 / 0.160
G21     151.7          21.6               12.9 +/-    2.67      27.4 +/-    2.67  0.090 / 0.170
G24     44.8           17.7                8.7 +/-    0.85      20.4 +/-    0.85  0.060 / 0.190
G27     237.5          21.5               14.9 +/-    2.79      31.7 +/-    2.79  0.060 / 0.170
G31     182.7          18.1               17.9 +/-    4.70      41.3 +/-    4.70  0.030 / 0.030
G32     290.0          74.5               11.7 +/-    0.45      12.1 +/-    0.45  0.030 / 0.030