PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/23-00:42:50
G07     359.0          65.3                4.2 +/-    0.77       4.6 +/-    0.77  0.060 / 0.100
G08     74.9           51.9                6.6 +/-    0.78       8.2 +/-    0.78  0.050 / 0.110
G09     182.7          58.4                8.3 +/-    0.88       9.5 +/-    0.88  0.030 / 0.040
G11     137.3          22.0                6.3 +/-    0.87      13.3 +/-    0.87  0.040 / 0.040
G23     159.0          26.1                7.7 +/-    1.35      14.7 +/-    1.35  0.030 / 0.040
G27     43.5           21.6                3.5 +/-    1.32       7.5 +/-    1.32  0.030 / 0.050
G28     251.5          41.3                7.0 +/-    0.68      10.0 +/-    0.68  0.040 / 0.030
G30     316.9          48.2                3.8 +/-    0.86       4.9 +/-    0.86  0.030 / 0.040