PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-21:42:50
G01     316.3          23.2                8.7 +/-    1.72      17.7 +/-    1.72  0.110 / 0.330
G10     88.9           50.1                8.6 +/-    0.98      10.9 +/-    0.98  0.090 / 0.330
G11     296.8          26.0                9.8 +/-    1.08      18.8 +/-    1.08  0.080 / 0.160
G14     320.8          71.2                9.5 +/-    0.45      10.0 +/-    0.45  0.160 / 0.160
G18     107.6          23.4               11.0 +/-    1.34      22.3 +/-    1.34  0.050 / 0.040
G22     303.5          14.4                8.8 +/-    2.85      22.1 +/-    2.85  0.030 / 0.040
G25     94.5           11.4               12.2 +/-    3.34      33.0 +/-    3.34  0.150 / 0.270
G31     177.6          46.7               13.1 +/-    0.70      17.2 +/-    0.70  0.140 / 0.210
G32     15.3           63.9                8.8 +/-    0.49       9.7 +/-    0.49  0.040 / 0.020