PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-01:27:00
G02     45.3           44.3                9.5 +/-    1.33      12.9 +/-    1.33  0.030 / 0.050
G05     100.2          68.9               10.1 +/-    0.61      10.7 +/-    0.61  0.030 / 0.040
G12     191.9          54.9               11.4 +/-    0.56      13.6 +/-    0.56  0.040 / 0.030
G25     270.6          58.7               13.4 +/-    2.78      15.4 +/-    2.78  0.040 / 0.050
G29     318.8          41.8                9.7 +/-    0.68      13.8 +/-    0.68  0.030 / 0.030