PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/27-19:12:50
G03     191.2          25.2               12.1 +/-    2.68      23.6 +/-    2.68  0.070 / 0.120
G07     287.1          37.9               12.1 +/-    1.28      18.2 +/-    1.28  0.060 / 0.140
G08     143.6          23.8               13.1 +/-    1.78      26.4 +/-    1.78  0.050 / 0.030
G09     320.7          56.5               11.7 +/-    0.35      13.8 +/-    0.35  0.040 / 0.040
G16     46.8           49.0               11.7 +/-    1.37      15.0 +/-    1.37  0.070 / 0.080
G23     63.5           83.8               12.4 +/-    0.46      12.5 +/-    0.46  0.060 / 0.090
G26     43.6           21.0                9.3 +/-    2.36      20.0 +/-    2.36  0.140 / 0.210
G27     109.3          30.6               13.7 +/-    0.94      23.7 +/-    0.94  0.130 / 0.230