PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-17:12:30
G02     358.1          75.3               14.1 +/-    0.53      14.5 +/-    0.53  0.020 / 0.040
G05     166.3          36.3               18.3 +/-    1.39      28.4 +/-    1.39  0.020 / 0.040
G06     43.4           35.5               12.3 +/-    1.25      19.4 +/-    1.25  0.130 / 0.360
G12     295.9          76.5               14.1 +/-    0.51      14.4 +/-    0.51  0.140 / 0.300
G19     81.9           21.9               12.9 +/-    1.12      27.0 +/-    1.12  0.050 / 0.100
G24     225.3          19.0               15.3 +/-    1.90      34.6 +/-    1.90  0.060 / 0.100
G25     315.2          37.8               15.6 +/-    1.14      23.5 +/-    1.14  0.050 / 0.090
G29     292.2          15.3               13.3 +/-    2.33      32.8 +/-    2.33  0.050 / 0.060