PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/12-23:42:50
G01     82.7           33.0                8.4 +/-    1.89      13.9 +/-    1.89  0.080 / 0.040
G07     130.8          40.4               11.2 +/-    1.03      16.3 +/-    1.03  0.050 / 0.050
G11     64.5           38.8                7.6 +/-    1.16      11.3 +/-    1.16  0.110 / 0.130
G13     287.8          37.1                7.5 +/-    1.08      11.5 +/-    1.08  0.070 / 0.080
G15     310.3          12.9                7.6 +/-    2.66      19.9 +/-    2.66  0.060 / 0.090
G17     220.3          56.9               10.6 +/-    1.77      12.4 +/-    1.77  0.060 / 0.050
G19     217.8          32.8               10.5 +/-    1.40      17.3 +/-    1.40  0.130 / 0.090
G28     2.6            61.0                7.7 +/-    0.70       8.7 +/-    0.70  0.070 / 0.100
G30     122.5          67.5               10.7 +/-    1.10      11.5 +/-    1.10  0.180 / 0.120