PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-16:27:50
G02     274.1          79.3                7.1 +/-    0.76       7.3 +/-    0.76  0.030 / 0.050
G05     168.9          23.6                8.9 +/-    1.18      18.0 +/-    1.18  0.050 / 0.050
G06     39.8           48.6                7.6 +/-    0.25       9.7 +/-    0.25  0.100 / 0.280
G12     319.9          60.7                7.8 +/-    0.52       8.8 +/-    0.52  0.170 / 0.330
G17     76.2           19.9                8.2 +/-    0.50      18.1 +/-    0.50  0.040 / 0.030
G19     66.5           31.4                8.8 +/-    1.15      15.0 +/-    1.15  0.030 / 0.040
G24     237.3          29.2                8.6 +/-    1.81      15.3 +/-    1.81  0.080 / 0.130
G25     317.3          19.1                7.7 +/-    1.36      17.3 +/-    1.36  0.080 / 0.160