PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-22:43:00
G08     255.0          12.8               13.2 +/-    1.45      34.5 +/-    1.45  0.040 / 0.050
G10     81.1           52.4               11.3 +/-    0.46      13.9 +/-    0.46  0.040 / 0.050
G11     301.5          24.1               12.3 +/-    1.90      24.5 +/-    1.90  0.190 / 0.250
G14     298.6          70.8               12.8 +/-    0.77      13.5 +/-    0.77  0.250 / 0.320
G18     302.9          42.3               12.8 +/-    0.68      17.9 +/-    0.68  0.040 / 0.070
G20     106.0          28.6               11.7 +/-    1.29      21.0 +/-    1.29  0.050 / 0.080
G31     176.3          42.3               14.0 +/-    1.14      19.6 +/-    1.14  0.040 / 0.020
G32     10.2           66.6               10.0 +/-    0.60      10.8 +/-    0.60  0.030 / 0.030