PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-21:58:10
G02     46.2           43.7                8.4 +/-    0.39      11.5 +/-    0.39  0.040 / 0.050
G05     94.8           69.2                9.7 +/-    0.52      10.3 +/-    0.52  0.040 / 0.050
G12     190.0          51.9               12.9 +/-    0.46      15.9 +/-    0.46  0.060 / 0.070
G25     267.8          58.3               10.0 +/-    0.88      11.5 +/-    0.88  0.060 / 0.070
G29     319.0          41.6               11.0 +/-    1.35      15.6 +/-    1.35  0.050 / 0.050