PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/09-02:57:30
G02     38.3           50.5                6.0 +/-    1.54       7.5 +/-    1.54  0.030 / 0.050
G05     125.8          66.0                7.0 +/-    0.45       7.6 +/-    0.45  0.030 / 0.050
G06     55.2           15.2                5.2 +/-    2.64      12.8 +/-    2.64  0.030 / 0.030
G12     198.4          64.6                8.5 +/-    0.46       9.4 +/-    0.46  0.030 / 0.040
G25     287.2          57.1                9.7 +/-    4.08      11.3 +/-    4.08  0.030 / 0.030
G29     313.4          36.1                7.1 +/-    0.83      11.0 +/-    0.83  0.030 / 0.030