PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-16:42:40
G02     44.5           45.8               10.2 +/-    0.52      13.6 +/-    0.52  0.050 / 0.060
G05     117.1          69.9               11.5 +/-    0.54      12.2 +/-    0.54  0.040 / 0.050
G12     191.2          53.9               13.8 +/-    1.56      16.6 +/-    1.56  0.030 / 0.070
G20     200.8          39.3               13.9 +/-    1.48      20.5 +/-    1.48  0.030 / 0.050
G25     268.9          59.4               13.2 +/-    1.24      15.1 +/-    1.24  0.030 / 0.040
G29     319.0          42.4               10.3 +/-    2.04      14.4 +/-    2.04  0.020 / 0.040