PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/22-05:13:10
G10     242.3          20.4                6.0 +/-    2.72      13.1 +/-    2.72  0.090 / 0.130
G13     63.8           33.7                5.2 +/-    0.71       8.5 +/-    0.71  0.120 / 0.130
G15     105.3          56.6                6.6 +/-    0.34       7.7 +/-    0.34  0.050 / 0.070
G16     309.4          13.0                4.4 +/-    2.01      11.4 +/-    2.01  0.040 / 0.060
G20     257.6          44.0                6.8 +/-    1.10       9.3 +/-    1.10  0.070 / 0.130
G21     324.6          54.3                6.0 +/-    1.16       7.2 +/-    1.16  0.060 / 0.120
G26     281.0          18.2                3.9 +/-    1.12       9.1 +/-    1.12  0.030 / 0.070
G29     157.1          57.4                6.9 +/-    0.61       8.0 +/-    0.61  0.030 / 0.050