PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-00:42:40
G02     356.4          76.4                8.9 +/-    1.08       9.1 +/-    1.08  0.030 / 0.050
G05     161.8          37.0               13.7 +/-    1.44      20.9 +/-    1.44  0.030 / 0.030
G06     42.5           37.4                8.4 +/-    1.01      12.8 +/-    1.01  0.040 / 0.080
G12     306.1          74.0                8.4 +/-    0.72       8.7 +/-    0.72  0.040 / 0.090
G17     86.9           12.8               10.1 +/-    0.99      26.4 +/-    0.99  0.070 / 0.160
G19     76.8           26.8                9.9 +/-    1.07      18.6 +/-    1.07  0.080 / 0.130
G24     226.3          20.9               12.6 +/-    1.90      27.1 +/-    1.90  0.040 / 0.040
G25     316.9          30.5                7.8 +/-    0.53      13.5 +/-    0.53  0.040 / 0.040