PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-21:58:10
G05     51.8           11.0                6.1 +/-    1.83      16.8 +/-    1.83  0.120 / 0.160
G10     241.5          18.5               13.3 +/-    1.36      30.3 +/-    1.36  0.200 / 0.240
G13     65.6           34.7                8.2 +/-    0.88      13.0 +/-    0.88  0.080 / 0.080
G15     117.0          56.7                9.4 +/-    0.70      11.0 +/-    0.70  0.050 / 0.060
G16     305.4          15.5                6.5 +/-    2.86      15.9 +/-    2.86  0.130 / 0.540
G20     245.9          11.3                5.3 +/-    1.63      14.4 +/-    1.63  0.130 / 0.650
G21     319.8          51.4                9.8 +/-    1.31      12.1 +/-    1.31  0.050 / 0.130
G26     277.5          19.6                9.3 +/-    1.50      20.7 +/-    1.50  0.070 / 0.130
G29     161.2          64.6               10.4 +/-    1.25      11.4 +/-    1.25  0.030 / 0.050