PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-19:42:40
G02     61.4           31.8               21.5 +/-    1.47      36.2 +/-    1.47  0.110 / 0.300
G05     58.6           64.0               22.6 +/-    0.32      24.9 +/-    0.32  0.090 / 0.270
G12     184.6          29.4               26.4 +/-    1.44      46.8 +/-    1.44  0.050 / 0.110
G13     127.8          17.0               29.9 +/-    1.88      70.9 +/-    1.88  0.080 / 0.120
G15     162.7          13.8               32.7 +/-    1.00      83.7 +/-    1.00  0.050 / 0.070
G20     208.9          64.0               27.7 +/-    1.28      30.4 +/-    1.28  0.060 / 0.080
G21     273.6          19.9               21.1 +/-    1.09      46.7 +/-    1.09  0.030 / 0.040
G25     227.2          48.7               24.9 +/-    0.66      31.9 +/-    0.66  0.030 / 0.040
G29     333.3          60.7               22.3 +/-    0.88      25.2 +/-    0.88  0.120 / 0.300