PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-00:58:10
G05     49.9           13.5                7.3 +/-    2.20      18.7 +/-    2.20  0.130 / 0.300
G10     238.0          16.1               10.4 +/-    1.62      25.1 +/-    1.62  0.200 / 0.270
G13     70.8           35.0                8.0 +/-    0.76      12.6 +/-    0.76  0.050 / 0.060
G15     117.2          54.3                9.4 +/-    0.24      11.3 +/-    0.24  0.040 / 0.060
G16     312.7          12.6                6.6 +/-    1.96      17.3 +/-    1.96  0.160 / 0.490
G20     251.3          39.3               10.2 +/-    1.15      15.0 +/-    1.15  0.240 / 0.410
G21     316.6          48.9                7.3 +/-    0.82       9.3 +/-    0.82  0.060 / 0.110
G26     285.3          19.6                6.1 +/-    1.61      13.5 +/-    1.61  0.060 / 0.100
G29     154.5          67.0                9.0 +/-    0.57       9.7 +/-    0.57  0.030 / 0.040