PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/24-15:12:40
G01     92.5           30.9               10.5 +/-    0.73      18.0 +/-    0.73  0.060 / 0.120
G07     123.7          43.9               10.8 +/-    1.16      14.9 +/-    1.16  0.060 / 0.130
G11     69.3           37.9                8.8 +/-    0.45      13.2 +/-    0.45  0.030 / 0.030
G13     299.1          33.9                9.2 +/-    1.12      15.0 +/-    1.12  0.020 / 0.030
G17     212.4          53.8               13.1 +/-    0.70      15.8 +/-    0.70  0.070 / 0.140
G19     213.4          26.7               13.0 +/-    1.82      24.5 +/-    1.82  0.080 / 0.130
G28     344.4          61.6                8.2 +/-    0.73       9.2 +/-    0.73  0.040 / 0.060
G30     84.0           79.3               10.1 +/-    0.84      10.3 +/-    0.84  0.040 / 0.050