PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-03:57:30
G05     49.8           13.6                3.1 +/-    1.47       8.0 +/-    1.47  0.140 / 0.290
G10     237.7          15.6                7.7 +/-    1.48      18.8 +/-    1.48  0.240 / 0.280
G13     71.6           35.3                6.9 +/-    1.02      10.9 +/-    1.02  0.050 / 0.120
G15     117.6          54.0                7.0 +/-    0.60       8.4 +/-    0.60  0.070 / 0.090
G16     314.5          11.5                3.3 +/-   13.45       9.0 +/-   13.45  0.080 / 0.190
G20     250.8          39.2                7.2 +/-    0.79      10.6 +/-    0.79  0.060 / 0.190
G26     287.1          19.3                6.4 +/-    1.10      14.3 +/-    1.10  0.030 / 0.040
G29     153.2          65.6                7.2 +/-    0.67       7.8 +/-    0.67  0.030 / 0.040