PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-21:27:50
G08     297.3          22.8                9.7 +/-    1.19      20.0 +/-    1.19  0.090 / 0.090
G10     354.9          62.5               10.6 +/-    0.75      11.8 +/-    0.75  0.080 / 0.090
G14     226.2          43.2               16.6 +/-    1.85      23.0 +/-    1.85  0.050 / 0.100
G18     57.8           53.2               11.9 +/-    0.36      14.4 +/-    0.36  0.060 / 0.120
G21     143.0          42.1               15.2 +/-    0.84      21.4 +/-    0.84  0.040 / 0.080
G24     62.0           28.4                9.9 +/-    0.94      18.0 +/-    0.94  0.050 / 0.070
G27     258.0          33.8               13.9 +/-    1.60      22.6 +/-    1.60  0.030 / 0.040
G32     236.7          60.9               14.9 +/-    0.60      16.7 +/-    0.60  0.030 / 0.040