PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/08-00:27:50
G01     69.0           32.7                7.7 +/-    0.97      12.8 +/-    0.97  0.030 / 0.050
G07     138.4          29.9               10.4 +/-    0.89      18.3 +/-    0.89  0.030 / 0.040
G11     54.5           32.0                6.7 +/-    1.23      11.2 +/-    1.23  0.040 / 0.080
G13     273.2          37.1               10.0 +/-    2.66      15.3 +/-    2.66  0.040 / 0.060
G15     300.6          16.0                5.7 +/-    1.64      13.8 +/-    1.64  0.030 / 0.020
G17     235.4          67.8                8.4 +/-    0.40       9.0 +/-    0.40  0.040 / 0.030
G19     225.5          43.5                9.7 +/-    2.03      13.4 +/-    2.03  0.060 / 0.090
G28     23.5           58.7                7.2 +/-    2.67       8.3 +/-    2.67  0.050 / 0.080
G30     136.8          56.5               10.6 +/-    0.47      12.4 +/-    0.47  0.090 / 0.090