PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-20:42:40
G03     186.2          13.1               13.8 +/-    3.82      35.9 +/-    3.82  0.080 / 0.100
G07     296.7          40.8                9.8 +/-    0.60      14.1 +/-    0.60  0.060 / 0.120
G08     139.3          32.7               13.6 +/-    0.89      22.6 +/-    0.89  0.060 / 0.110
G09     317.7          68.4                9.5 +/-    0.61      10.1 +/-    0.61  0.060 / 0.150
G16     41.7           33.0                7.4 +/-    0.78      12.3 +/-    0.78  0.050 / 0.090
G23     132.7          71.2               10.3 +/-    0.66      10.8 +/-    0.66  0.060 / 0.080
G27     90.2           35.9               11.2 +/-    0.73      17.4 +/-    0.73  0.040 / 0.090
G30     280.2          19.7                8.2 +/-    1.21      18.1 +/-    1.21  0.060 / 0.080