PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/24-17:42:40
G02     253.6          77.4               13.1 +/-    0.90      13.4 +/-    0.90  0.090 / 0.110
G05     173.7          17.3               16.1 +/-    2.13      37.8 +/-    2.13  0.100 / 0.130
G06     40.1           53.6               11.0 +/-    0.68      13.3 +/-    0.68  0.030 / 0.040
G12     321.2          57.7               12.7 +/-    0.53      14.8 +/-    0.53  0.030 / 0.040
G17     76.8           16.9               11.6 +/-    1.25      27.6 +/-    1.25  0.160 / 0.310
G19     64.0           33.7               11.3 +/-    0.85      18.4 +/-    0.85  0.090 / 0.250
G24     241.9          32.2               13.9 +/-    1.16      23.3 +/-    1.16  0.070 / 0.140
G25     317.6          20.7                9.9 +/-    5.22      21.4 +/-    5.22  0.050 / 0.160