PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-21:27:30
G02     54.0           37.2               10.1 +/-    1.07      15.4 +/-    1.07  0.040 / 0.050
G05     68.2           65.4                9.9 +/-    0.57      10.8 +/-    0.57  0.040 / 0.060
G12     186.7          40.7               11.2 +/-    1.61      16.1 +/-    1.61  0.050 / 0.080
G13     131.5          10.9               10.0 +/-   17.07      27.2 +/-   17.07  0.070 / 0.080
G21     266.6          13.0               10.7 +/-   16.66      27.8 +/-   16.66  0.210 / 0.450
G25     248.0          55.7               10.5 +/-    2.65      12.4 +/-    2.65  0.170 / 0.410
G29     325.4          49.8               10.9 +/-    0.84      13.8 +/-    0.84  0.160 / 0.470