PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/22-21:42:40
G08     297.8          22.7               12.3 +/-    1.37      25.2 +/-    1.37  0.080 / 0.120
G10     353.6          62.5               12.5 +/-    0.84      14.0 +/-    0.84  0.100 / 0.110
G14     225.7          42.7               16.7 +/-    1.89      23.3 +/-    1.89  0.040 / 0.090
G18     56.9           53.5               13.3 +/-    0.74      16.1 +/-    0.74  0.050 / 0.100
G21     142.7          42.9               16.3 +/-    1.01      22.7 +/-    1.01  0.050 / 0.090
G24     62.7           28.6               11.5 +/-    0.49      20.7 +/-    0.49  0.050 / 0.100
G27     258.7          34.0               15.9 +/-    1.51      25.8 +/-    1.51  0.030 / 0.040
G32     235.8          60.2               17.5 +/-    0.60      19.8 +/-    0.60  0.030 / 0.040