PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/19-21:42:40
G01     314.3          26.1                8.3 +/-    2.70      15.9 +/-    2.70  0.120 / 0.210
G10     93.9           47.7                8.6 +/-    0.66      11.1 +/-    0.66  0.100 / 0.210
G11     293.0          27.1                7.5 +/-    0.77      14.0 +/-    0.77  0.080 / 0.170
G14     332.2          70.5                9.1 +/-    0.87       9.6 +/-    0.87  0.070 / 0.170
G18     110.5          20.7               11.7 +/-    1.02      25.4 +/-    1.02  0.040 / 0.060
G22     305.2          17.1                9.2 +/-    1.44      21.7 +/-    1.44  0.050 / 0.040
G25     91.1           13.0               12.2 +/-    0.96      31.7 +/-    0.96  0.160 / 0.390
G31     176.6          51.0               11.6 +/-    0.76      14.5 +/-    0.76  0.170 / 0.360
G32     21.1           61.2                8.7 +/-    0.46       9.7 +/-    0.46  0.040 / 0.050