PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-16:58:00
G02     206.4          39.3               14.7 +/-    1.61      21.6 +/-    1.61  0.050 / 0.100
G06     142.2          76.1               12.3 +/-    0.60      12.6 +/-    0.60  0.050 / 0.090
G12     311.9          21.8                8.5 +/-    2.26      17.8 +/-    2.26  0.070 / 0.180
G17     45.1           41.6               10.8 +/-    1.18      15.3 +/-    1.18  0.110 / 0.150
G19     19.7           59.3               10.8 +/-    0.73      12.4 +/-    0.73  0.030 / 0.060
G24     291.4          40.1               10.9 +/-    1.00      15.8 +/-    1.00  0.030 / 0.060
G28     109.8          25.8               10.9 +/-    1.86      20.9 +/-    1.86  0.040 / 0.030