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               14.2 +/-    2.76      30.5 +/-    2.76  0.250 / 0.220
G10     50.7           59.3               12.9 +/-    1.10      14.7 +/-    1.10  0.280 / 0.290
G14     248.2          56.7               15.4 +/-    1.18      18.1 +/-    1.18  0.040 / 0.050
G20     90.1           38.5               14.4 +/-    1.77      21.5 +/-    1.77  0.050 / 0.060
G21     153.7          22.0               16.7 +/-    3.19      35.1 +/-    3.19  0.160 / 0.330
G24     43.7           15.8                9.4 +/-    2.60      23.0 +/-    2.60  0.100 / 0.220
G27     237.0          21.1               16.3 +/-    2.02      34.9 +/-    2.02  0.110 / 0.260
G31     179.6          23.1               17.9 +/-    3.00      36.5 +/-    3.00  0.120 / 0.240
G32     317.2          76.9               15.5 +/-    0.99      15.9 +/-    0.99  0.030 / 0.030