PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-17:57:40
G02     27.2           60.5               13.8 +/-    0.65      15.6 +/-    0.65  0.050 / 0.050
G05     154.9          55.2               15.6 +/-    0.45      18.5 +/-    0.45  0.040 / 0.050
G06     51.3           20.2               12.8 +/-    2.65      28.0 +/-    2.65  0.030 / 0.030
G12     208.1          72.7               13.2 +/-    0.32      13.8 +/-    0.32  0.030 / 0.030
G19     97.2           11.0               14.5 +/-    1.44      39.5 +/-    1.44  0.030 / 0.040
G20     197.7          22.1               15.5 +/-    2.69      32.4 +/-    2.69  0.030 / 0.030
G25     300.4          53.3               13.7 +/-    1.23      16.6 +/-    1.23  0.190 / 0.240
G29     305.6          27.5               14.5 +/-    0.99      26.7 +/-    0.99  0.250 / 0.260