PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-00:57:50
G02     34.3           54.0                9.7 +/-    0.37      11.7 +/-    0.37  0.050 / 0.060
G05     134.9          63.1               12.9 +/-    0.89      14.3 +/-    0.89  0.050 / 0.060
G06     53.2           17.2                6.6 +/-    1.11      15.6 +/-    1.11  0.040 / 0.070
G12     203.7          69.1               10.1 +/-    0.95      10.7 +/-    0.95  0.040 / 0.060
G25     295.3          54.3                9.5 +/-    0.97      11.3 +/-    0.97  0.020 / 0.040
G29     309.5          31.7                8.8 +/-    0.84      15.0 +/-    0.84  0.020 / 0.040