PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-01:42:50
G03     255.4          69.9                5.4 +/-    0.66       5.7 +/-    0.66  0.040 / 0.050
G09     301.4          17.0                5.1 +/-    2.18      12.0 +/-    2.18  0.040 / 0.050
G14     94.6           20.1                5.0 +/-    1.03      10.9 +/-    1.03  0.040 / 0.060
G16     129.9          55.4                7.9 +/-    1.15       9.3 +/-    1.15  0.040 / 0.060
G22     202.6          60.6                6.6 +/-    1.13       7.5 +/-    1.13  0.100 / 0.260
G23     316.6          46.6                4.6 +/-    1.10       6.1 +/-    1.10  0.090 / 0.240
G26     75.5           52.8                5.0 +/-    1.07       6.1 +/-    1.07  0.030 / 0.030
G31     50.7           21.6                1.4 +/-    1.76       3.1 +/-    1.76  0.040 / 0.040