PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-18:42:40
G02     249.8          76.2               13.7 +/-    0.37      14.1 +/-    0.37  0.030 / 0.030
G05     173.2          17.4               16.8 +/-    1.10      39.4 +/-    1.10  0.040 / 0.030
G06     40.3           53.7               12.1 +/-    0.88      14.6 +/-    0.88  0.080 / 0.130
G12     321.4          57.6               10.6 +/-    0.45      12.3 +/-    0.45  0.100 / 0.130
G19     63.5           34.0               11.7 +/-    2.40      18.9 +/-    2.40  0.040 / 0.030
G24     242.5          32.6               12.2 +/-    2.50      20.2 +/-    2.50  0.040 / 0.040
G25     317.5          20.8               11.5 +/-    1.72      24.7 +/-    1.72  0.140 / 0.250