PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/15-00:12:40
G01     313.5          27.1                9.2 +/-    1.70      17.1 +/-    1.70  0.100 / 0.140
G10     95.4           47.0                7.9 +/-    0.92      10.3 +/-    0.92  0.100 / 0.140
G11     290.8          28.0                7.2 +/-    1.91      13.1 +/-    1.91  0.140 / 0.310
G14     337.8          70.1                9.4 +/-    0.64       9.9 +/-    0.64  0.170 / 0.280
G18     111.1          20.6                9.3 +/-    1.61      20.1 +/-    1.61  0.080 / 0.170
G22     305.8          18.1                8.5 +/-    1.02      19.6 +/-    1.02  0.090 / 0.140
G25     88.8           13.4                9.4 +/-    1.72      24.2 +/-    1.72  0.030 / 0.040
G31     176.9          51.9               10.5 +/-    1.27      13.0 +/-    1.27  0.070 / 0.040
G32     20.7           61.2                7.4 +/-    0.49       8.3 +/-    0.49  0.040 / 0.050