PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-22:43:10
G02     228.9          71.1               10.2 +/-    0.64      10.7 +/-    0.64  0.260 / 0.370
G05     173.3          11.6               12.8 +/-   26.26      34.4 +/-   26.26  0.220 / 0.490
G06     43.2           66.9                9.1 +/-    0.32       9.9 +/-    0.32  0.040 / 0.050
G12     320.1          43.1               10.4 +/-    1.35      14.4 +/-    1.35  0.040 / 0.040
G17     65.7           25.7                8.8 +/-    0.60      16.9 +/-    0.60  0.060 / 0.110
G19     50.9           41.9                8.8 +/-    0.46      12.4 +/-    0.46  0.070 / 0.090
G24     251.0          37.8               10.9 +/-    1.38      16.5 +/-    1.38  0.060 / 0.080
G28     127.9          9.9                13.6 +/-    4.38      38.1 +/-    4.38  0.040 / 0.060