PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-17:27:50
G02     355.7          75.8               15.0 +/-    0.56      15.4 +/-    0.56  0.090 / 0.100
G05     166.8          35.6               16.6 +/-    0.69      26.1 +/-    0.69  0.080 / 0.150
G06     43.3           35.9               13.2 +/-    1.44      20.7 +/-    1.44  0.060 / 0.070
G12     297.8          76.2               12.8 +/-    1.14      13.1 +/-    1.14  0.060 / 0.080
G19     81.4           22.3               13.2 +/-    1.68      27.4 +/-    1.68  0.160 / 0.300
G24     225.8          19.4               15.5 +/-    2.38      34.5 +/-    2.38  0.140 / 0.160
G25     315.3          37.5               14.2 +/-    0.62      21.5 +/-    0.62  0.020 / 0.020
G29     291.7          14.7               12.6 +/-    1.46      31.4 +/-    1.46  0.030 / 0.030