PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-16:57:40
G02     0.3            74.7               14.6 +/-    0.36      15.1 +/-    0.36  0.050 / 0.090
G05     165.8          37.1               18.2 +/-    1.16      27.8 +/-    1.16  0.050 / 0.070
G06     43.6           35.1               12.6 +/-    1.19      20.0 +/-    1.19  0.020 / 0.020
G12     293.8          76.9               12.3 +/-    1.44      12.6 +/-    1.44  0.030 / 0.020
G19     82.4           21.6               13.3 +/-    1.50      28.2 +/-    1.50  0.050 / 0.060
G24     224.9          18.6               18.5 +/-    1.79      42.1 +/-    1.79  0.040 / 0.050
G25     315.0          38.2               13.0 +/-    0.53      19.4 +/-    0.53  0.100 / 0.270
G29     292.7          15.8               12.1 +/-    1.78      29.5 +/-    1.78  0.100 / 0.200