PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-18:27:50
G08     274.1          20.9               13.8 +/-    0.98      29.7 +/-    0.98  0.080 / 0.140
G10     50.7           59.3               13.9 +/-    0.73      15.9 +/-    0.73  0.090 / 0.140
G14     248.2          56.7               16.8 +/-    0.81      19.7 +/-    0.81  0.050 / 0.060
G20     90.1           38.5               14.5 +/-    0.96      21.5 +/-    0.96  0.040 / 0.080
G21     153.7          22.0               17.0 +/-    0.98      35.7 +/-    0.98  0.040 / 0.040
G24     43.7           15.8               10.2 +/-    1.33      24.9 +/-    1.33  0.030 / 0.040
G27     237.0          21.1               18.3 +/-    2.50      39.2 +/-    2.50  0.150 / 0.270
G31     179.6          23.1               17.5 +/-    2.10      35.7 +/-    2.10  0.140 / 0.270
G32     317.2          76.9               14.3 +/-    0.63      14.7 +/-    0.63  0.100 / 0.180