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                9.5 +/-    1.02      11.4 +/-    1.02  0.030 / 0.030
G05     134.9          63.1               11.6 +/-    0.49      12.8 +/-    0.49  0.030 / 0.030
G06     53.2           17.2                7.8 +/-    1.37      18.4 +/-    1.37  0.050 / 0.070
G12     203.7          69.1               11.1 +/-    0.50      11.8 +/-    0.50  0.040 / 0.050
G25     295.3          54.3                8.6 +/-    1.70      10.3 +/-    1.70  0.030 / 0.030
G29     309.5          31.7                8.9 +/-    1.70      15.0 +/-    1.70  0.040 / 0.030