PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/30-23:27:50
G01     306.7          33.4               10.8 +/-    0.99      17.7 +/-    0.99  0.120 / 0.160
G10     106.2          40.5               11.4 +/-    0.38      16.4 +/-    0.38  0.090 / 0.130
G11     280.8          28.8               10.9 +/-    1.56      19.5 +/-    1.56  0.070 / 0.110
G14     0.3            66.3               10.9 +/-    0.70      11.7 +/-    0.70  0.070 / 0.080
G18     117.6          13.5               11.1 +/-    1.94      28.7 +/-    1.94  0.090 / 0.310
G22     309.5          25.2                9.8 +/-    0.94      19.0 +/-    0.94  0.100 / 0.320
G25     80.3           16.5               10.3 +/-    1.24      24.6 +/-    1.24  0.030 / 0.040
G31     174.1          62.0               13.6 +/-    0.63      15.1 +/-    0.63  0.050 / 0.040
G32     33.7           54.2               10.0 +/-    0.26      12.0 +/-    0.26  0.040 / 0.050