PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/01-21:57:50
G01     124.7          13.1               11.6 +/-    2.29      30.2 +/-    2.29  0.120 / 0.350
G07     70.8           66.3               12.5 +/-    0.35      13.6 +/-    0.35  0.150 / 0.350
G08     47.8           35.7                9.1 +/-    0.98      14.3 +/-    0.98  0.070 / 0.100
G09     178.0          33.9               13.3 +/-    1.26      21.6 +/-    1.26  0.060 / 0.080
G11     113.4          37.3               12.0 +/-    0.71      18.2 +/-    0.71  0.030 / 0.040
G13     320.2          14.3                9.0 +/-    1.72      22.6 +/-    1.72  0.030 / 0.040
G17     199.2          19.1               13.4 +/-    1.52      30.1 +/-    1.52  0.100 / 0.390
G18     97.8           17.7               11.4 +/-    1.38      26.5 +/-    1.38  0.110 / 0.490
G28     276.0          51.6               12.6 +/-    1.81      15.6 +/-    1.81  0.030 / 0.050
G30     335.9          62.8               10.9 +/-    0.51      12.1 +/-    0.51  0.030 / 0.040