PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-01:42:30
G02     36.0           52.5               10.0 +/-    0.67      12.2 +/-    0.67  0.030 / 0.030
G05     131.2          64.4               12.4 +/-    0.62      13.6 +/-    0.62  0.050 / 0.040
G06     54.0           16.2                8.0 +/-    1.37      19.4 +/-    1.37  0.030 / 0.040
G12     201.2          67.2               12.4 +/-    0.45      13.3 +/-    0.45  0.040 / 0.040
G25     292.1          55.5               11.3 +/-    3.31      13.4 +/-    3.31  0.040 / 0.060
G29     311.1          33.4                8.9 +/-    1.85      14.6 +/-    1.85  0.040 / 0.050