PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-23:12:50
G05     52.6           11.8                7.9 +/-    2.06      21.3 +/-    2.06  0.050 / 0.070
G10     244.1          20.0               12.0 +/-    1.03      26.4 +/-    1.03  0.040 / 0.060
G13     63.1           35.1                8.3 +/-    0.79      13.1 +/-    0.79  0.150 / 0.300
G15     106.2          57.5               10.9 +/-    0.86      12.6 +/-    0.86  0.110 / 0.240
G16     305.7          14.0                6.7 +/-    1.17      17.1 +/-    1.17  0.090 / 0.180
G18     257.6          49.9               10.3 +/-    0.68      13.0 +/-    0.68  0.140 / 0.200
G20     37.9           54.6                8.7 +/-    0.70      10.4 +/-    0.70  0.040 / 0.040
G21     324.5          55.0                8.9 +/-    1.32      10.5 +/-    1.32  0.030 / 0.050
G26     278.1          18.0                8.6 +/-    0.93      19.9 +/-    0.93  0.170 / 0.220
G29     161.0          56.2               11.3 +/-    0.86      13.3 +/-    0.86  0.120 / 0.230