PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-17:12:30
G02     36.8           52.7               12.1 +/-    0.55      14.7 +/-    0.55  0.030 / 0.040
G05     140.6          64.4               15.0 +/-    0.94      16.4 +/-    0.94  0.030 / 0.040
G06     56.0           13.8               10.2 +/-    1.56      26.2 +/-    1.56  0.040 / 0.050
G12     196.1          63.3               14.1 +/-    0.88      15.6 +/-    0.88  0.050 / 0.050
G20     198.9          30.8               13.2 +/-    1.34      22.7 +/-    1.34  0.070 / 0.190
G25     286.2          57.9               13.0 +/-    0.67      15.1 +/-    0.67  0.070 / 0.150
G29     312.6          35.0               11.8 +/-    1.16      18.7 +/-    1.16  0.060 / 0.160