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                7.1 +/-    1.65      19.0 +/-    1.65  0.100 / 0.300
G10     244.1          20.0               11.0 +/-    2.99      24.2 +/-    2.99  0.120 / 0.330
G13     63.1           35.1                9.7 +/-    0.80      15.4 +/-    0.80  0.170 / 0.180
G15     106.2          57.5               10.2 +/-    0.86      11.9 +/-    0.86  0.160 / 0.200
G16     305.7          14.0                7.5 +/-    1.51      19.2 +/-    1.51  0.200 / 0.210
G18     257.6          49.9                9.7 +/-    2.83      12.3 +/-    2.83  0.150 / 0.340
G20     37.9           54.6                9.7 +/-    0.78      11.6 +/-    0.78  0.040 / 0.040
G21     324.5          55.0                9.6 +/-    0.43      11.5 +/-    0.43  0.030 / 0.050
G26     278.1          18.0                9.7 +/-    1.27      22.4 +/-    1.27  0.130 / 0.170
G29     161.0          56.2               10.7 +/-    0.61      12.6 +/-    0.61  0.080 / 0.150