PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-20:57:30
G01     223.8          17.1                9.6 +/-    4.16      22.7 +/-    4.16  0.030 / 0.030
G03     291.7          66.6                8.5 +/-    0.88       9.2 +/-    0.88  0.030 / 0.030
G09     294.9          11.7               -0.3 +/-   32.64      -0.9 +/-   32.64  0.100 / 0.160
G14     83.5           28.1                9.1 +/-    0.78      16.6 +/-    0.78  0.090 / 0.190
G16     144.5          44.5               10.2 +/-    1.46      13.9 +/-    1.46  0.070 / 0.100
G22     221.6          70.9                8.6 +/-    0.50       9.1 +/-    0.50  0.070 / 0.100
G23     306.5          36.5                8.6 +/-    1.18      13.2 +/-    1.18  0.030 / 0.030
G26     99.3           54.1                8.4 +/-    0.87      10.1 +/-    0.87  0.030 / 0.030
G31     45.1           33.3                6.6 +/-    1.18      10.9 +/-    1.18  0.040 / 0.080