PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/18-00:12:40
G05     51.7           10.7                8.4 +/-    2.13      23.0 +/-    2.13  0.140 / 0.390
G10     241.2          18.0               10.5 +/-    1.63      24.2 +/-    1.63  0.110 / 0.390
G13     66.2           35.0               11.4 +/-    0.92      18.1 +/-    0.92  0.110 / 0.570
G15     115.4          56.4               12.0 +/-    0.65      14.1 +/-    0.65  0.140 / 0.580
G16     306.1          15.2                7.9 +/-    2.63      19.5 +/-    2.63  0.070 / 0.070
G20     250.0          28.0                9.1 +/-    0.98      16.6 +/-    0.98  0.050 / 0.060
G21     319.6          51.2               10.0 +/-    2.88      12.5 +/-    2.88  0.110 / 0.270
G26     278.1          19.6               10.0 +/-    1.62      22.1 +/-    1.62  0.130 / 0.280
G29     161.0          64.9               11.4 +/-    1.14      12.5 +/-    1.14  0.050 / 0.130