PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/15-22:12:30
G08     297.1          22.9                8.9 +/-    1.09      18.4 +/-    1.09  0.090 / 0.110
G10     354.9          62.5                9.0 +/-    0.92      10.0 +/-    0.92  0.090 / 0.100
G14     226.2          43.4               13.0 +/-    1.39      17.9 +/-    1.39  0.040 / 0.080
G18     57.5           53.4                9.9 +/-    0.60      12.0 +/-    0.60  0.050 / 0.080
G21     143.1          42.6               12.3 +/-    1.11      17.1 +/-    1.11  0.050 / 0.090
G24     62.0           28.4                7.8 +/-    0.74      14.2 +/-    0.74  0.070 / 0.090
G27     258.0          33.7               12.1 +/-    1.38      19.7 +/-    1.38  0.040 / 0.040
G32     236.5          60.4               11.6 +/-    0.43      13.1 +/-    0.43  0.040 / 0.030