PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-22:58:00
G07     22.7           68.9               12.1 +/-    1.09      12.8 +/-    1.09  0.090 / 0.160
G08     61.9           48.5               10.7 +/-    1.23      13.8 +/-    1.23  0.110 / 0.180
G09     180.5          47.5               13.4 +/-    1.15      17.4 +/-    1.15  0.110 / 0.370
G11     130.8          28.4               14.8 +/-    1.84      26.7 +/-    1.84  0.220 / 0.390
G23     159.8          15.3               12.6 +/-    2.79      31.2 +/-    2.79  0.050 / 0.050
G27     39.2           14.2                8.4 +/-    2.65      21.3 +/-    2.65  0.050 / 0.040
G28     263.2          47.9               10.9 +/-    4.07      14.1 +/-    4.07  0.160 / 0.420
G30     327.5          56.2               10.6 +/-    0.73      12.4 +/-    0.73  0.150 / 0.410