PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-01:58:10
G07     324.2          55.0                6.2 +/-    0.62       7.3 +/-    0.62  0.100 / 0.130
G08     108.1          48.5                8.8 +/-    0.75      11.3 +/-    0.75  0.080 / 0.140
G09     199.6          80.3                7.3 +/-    0.46       7.4 +/-    0.46  0.050 / 0.050
G16     44.4           14.3                2.3 +/-    2.97       5.8 +/-    2.97  0.060 / 0.050
G23     153.1          52.9                8.1 +/-    0.75       9.9 +/-    0.75  0.160 / 0.440
G27     66.5           36.7                6.8 +/-    1.13      10.5 +/-    1.13  0.220 / 0.350
G28     230.7          20.8                6.5 +/-    3.31      13.9 +/-    3.31  0.050 / 0.040
G30     294.6          28.4                2.9 +/-    2.29       5.3 +/-    2.29  0.040 / 0.040