PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-18:57:40
G08     274.6          20.5               10.2 +/-    2.31      22.2 +/-    2.31  0.200 / 0.410
G10     45.9           61.3                8.2 +/-    0.88       9.2 +/-    0.88  0.300 / 0.440
G11     316.1          11.9                4.4 +/-   11.80      11.7 +/-   11.80  0.090 / 0.190
G14     253.0          61.6                9.1 +/-    0.46      10.2 +/-    0.46  0.110 / 0.200
G18     85.7           39.3                8.7 +/-    2.10      12.8 +/-    2.10  0.030 / 0.020
G24     43.6           16.2                7.3 +/-    3.18      17.7 +/-    3.18  0.030 / 0.020
G27     236.2          20.3                9.9 +/-    2.94      21.5 +/-    2.94  0.040 / 0.040
G31     181.0          21.6               11.6 +/-    1.16      24.6 +/-    1.16  0.030 / 0.050
G32     305.3          75.8                9.0 +/-    0.53       9.2 +/-    0.53  0.240 / 0.270