PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/20-03:27:30
G01     319.8          15.0                5.1 +/-    1.56      12.6 +/-    1.56  0.160 / 0.440
G08     259.0          15.0                9.1 +/-    2.28      22.7 +/-    2.28  0.230 / 0.400
G10     72.5           56.1                5.7 +/-    0.81       6.7 +/-    0.81  0.030 / 0.040
G11     304.7          23.1                6.1 +/-    1.58      12.4 +/-    1.58  0.030 / 0.040
G14     289.9          70.7                7.7 +/-    0.65       8.1 +/-    0.65  0.050 / 0.060
G18     97.9           32.7                6.0 +/-    0.76       9.9 +/-    0.76  0.050 / 0.050
G27     225.3          10.7               10.4 +/-    2.21      28.5 +/-    2.21  0.160 / 0.350
G31     177.6          37.2                9.4 +/-    1.91      14.3 +/-    1.91  0.200 / 0.320
G32     354.2          70.7                6.8 +/-    0.79       7.2 +/-    0.79  0.060 / 0.070