PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-16:58:00
G07     341.3          60.9               13.0 +/-    0.42      14.6 +/-    0.42  0.050 / 0.050
G08     92.9           53.7               16.0 +/-    0.74      19.3 +/-    0.74  0.050 / 0.040
G09     185.8          67.4               14.6 +/-    0.40      15.7 +/-    0.40  0.060 / 0.080
G11     142.8          16.7               16.4 +/-    3.93      39.1 +/-    3.93  0.090 / 0.080
G23     155.7          30.9               15.5 +/-    1.19      26.6 +/-    1.19  0.040 / 0.050
G27     49.7           28.1               10.7 +/-    2.65      19.5 +/-    2.65  0.040 / 0.040
G28     242.5          34.4               16.9 +/-    1.17      27.1 +/-    1.17  0.050 / 0.090
G30     307.4          39.9               13.4 +/-    1.70      19.6 +/-    1.70  0.060 / 0.110