PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-23:12:30
G07     350.9          63.5                7.9 +/-    0.75       8.8 +/-    0.75  0.050 / 0.090
G08     82.6           53.3                8.0 +/-    0.67       9.7 +/-    0.67  0.060 / 0.120
G09     184.4          62.7               13.2 +/-    1.09      14.7 +/-    1.09  0.060 / 0.120
G11     140.7          19.3               10.7 +/-    2.48      23.9 +/-    2.48  0.060 / 0.100
G23     158.1          29.2                9.8 +/-    1.21      17.4 +/-    1.21  0.040 / 0.050
G27     45.8           24.3                6.9 +/-    1.74      13.8 +/-    1.74  0.040 / 0.050
G28     247.5          38.6               10.1 +/-    2.36      15.1 +/-    2.36  0.040 / 0.040
G30     314.3          46.3                6.5 +/-    1.15       8.6 +/-    1.15  0.040 / 0.050