PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-19:12:50
G08     315.7          15.4                9.9 +/-    2.08      24.5 +/-    2.08  0.050 / 0.060
G10     315.6          56.7               10.1 +/-    1.46      11.9 +/-    1.46  0.060 / 0.060
G14     214.3          23.8               13.5 +/-    1.58      27.2 +/-    1.58  0.040 / 0.040
G15     45.6           16.7                9.9 +/-    1.51      23.7 +/-    1.51  0.040 / 0.040
G18     26.4           62.1               10.6 +/-    1.40      11.8 +/-    1.40  0.090 / 0.280
G20     79.6           11.7               11.1 +/-    1.73      30.0 +/-    1.73  0.100 / 0.240
G21     125.1          60.5               13.8 +/-    0.53      15.6 +/-    0.53  0.110 / 0.100
G24     85.2           30.0               11.3 +/-    1.04      19.7 +/-    1.04  0.110 / 0.100
G27     284.0          38.0               12.6 +/-    2.62      19.0 +/-    2.62  0.060 / 0.070
G32     217.4          42.3               14.6 +/-    1.40      20.4 +/-    1.40  0.070 / 0.080