PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-22:12:00
G02     44.3           45.9                9.1 +/-    0.54      12.2 +/-    0.54  0.040 / 0.040
G05     102.3          69.3               10.0 +/-    0.51      10.6 +/-    0.51  0.040 / 0.040
G12     186.4          50.3               10.7 +/-    2.14      13.4 +/-    2.14  0.040 / 0.070
G25     271.0          58.5               11.6 +/-    0.83      13.4 +/-    0.83  0.030 / 0.060
G29     316.0          37.5               10.3 +/-    1.24      15.7 +/-    1.24  0.040 / 0.060