PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-02:43:10
G02     58.3           33.1                7.0 +/-    0.39      11.4 +/-    0.39  0.170 / 0.450
G05     59.9           61.6                9.3 +/-    0.39      10.4 +/-    0.39  0.130 / 0.420
G12     186.8          37.2               10.4 +/-    0.91      15.9 +/-    0.91  0.080 / 0.090
G13     128.8          13.6                7.0 +/-    3.20      18.1 +/-    3.20  0.050 / 0.100
G15     163.9          11.4                5.4 +/-   18.64      14.5 +/-   18.64  0.030 / 0.040
G21     270.5          17.2               10.8 +/-    5.40      25.5 +/-    5.40  0.030 / 0.040
G25     238.5          53.4                9.9 +/-    1.28      12.0 +/-    1.28  0.110 / 0.410
G29     331.0          56.4               10.7 +/-    0.89      12.6 +/-    0.89  0.160 / 0.440