PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-22:57:50
G01     223.7          16.7               11.2 +/-    2.98      26.6 +/-    2.98  0.040 / 0.040
G03     290.6          66.8                6.8 +/-    0.86       7.4 +/-    0.86  0.040 / 0.040
G09     294.7          10.6              -11.2 +/-   29.73     -30.9 +/-   29.73  0.080 / 0.180
G14     83.7           28.5                7.3 +/-    1.27      13.2 +/-    1.27  0.080 / 0.150
G16     143.8          45.1               11.5 +/-    0.71      15.4 +/-    0.71  0.060 / 0.110
G22     222.0          70.7                8.8 +/-    0.94       9.3 +/-    0.94  0.060 / 0.100
G23     307.2          37.3                7.5 +/-    0.88      11.4 +/-    0.88  0.060 / 0.100
G26     97.3           54.0                7.7 +/-    0.43       9.3 +/-    0.43  0.050 / 0.100
G31     45.6           31.9                6.1 +/-    0.66      10.3 +/-    0.66  0.030 / 0.040