PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/31-21:58:10
G08     273.0          20.5               10.7 +/-    0.98      23.3 +/-    0.98  0.060 / 0.170
G10     46.6           61.3                9.7 +/-    0.60      10.9 +/-    0.60  0.080 / 0.110
G11     315.2          13.3               10.2 +/-    2.52      26.5 +/-    2.52  0.140 / 0.340
G14     254.6          62.8               10.7 +/-    0.76      11.9 +/-    0.76  0.120 / 0.400
G18     85.6           39.8               11.9 +/-    0.36      17.3 +/-    0.36  0.060 / 0.310
G21     152.2          18.8               11.4 +/-    1.48      25.9 +/-    1.48  0.070 / 0.180
G24     43.4           16.1               10.0 +/-    1.60      24.2 +/-    1.60  0.090 / 0.210
G27     235.7          20.0               12.6 +/-    1.89      27.8 +/-    1.89  0.090 / 0.260
G31     182.4          20.2               12.0 +/-    3.21      26.2 +/-    3.21  0.040 / 0.060
G32     301.3          75.2               11.7 +/-    0.54      12.1 +/-    0.54  0.050 / 0.060