PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-04:28:10
G10     252.8          29.7                9.9 +/-    0.71      17.5 +/-    0.71  0.060 / 0.130
G13     50.9           27.6                5.5 +/-    1.66      10.1 +/-    1.66  0.070 / 0.120
G15     79.2           56.0                6.6 +/-    0.52       7.8 +/-    0.52  0.040 / 0.050
G20     273.7          52.6                8.8 +/-    0.52      10.7 +/-    0.52  0.050 / 0.040
G21     339.3          62.6                6.3 +/-    0.58       7.0 +/-    0.58  0.070 / 0.170
G26     267.9          14.4               10.1 +/-    2.82      25.5 +/-    2.82  0.080 / 0.190
G29     162.7          43.8                9.6 +/-    1.10      13.2 +/-    1.10  0.030 / 0.040