PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-20:28:00
G02     337.4          78.9                7.9 +/-    0.74       8.1 +/-    0.74  0.050 / 0.100
G05     164.0          33.8               13.1 +/-    1.72      21.2 +/-    1.72  0.040 / 0.090
G06     42.0           38.5                7.1 +/-    0.78      10.6 +/-    0.78  0.030 / 0.040
G12     309.4          74.4                7.8 +/-    1.02       8.0 +/-    1.02  0.030 / 0.040
G17     86.1           11.7                9.6 +/-    1.17      25.8 +/-    1.17  0.100 / 0.140
G19     73.7           29.4                8.7 +/-    0.72      15.5 +/-    0.72  0.100 / 0.160
G24     227.2          22.3               13.0 +/-    1.81      27.0 +/-    1.81  0.130 / 0.240
G25     317.2          29.1                6.6 +/-    1.76      11.8 +/-    1.76  0.110 / 0.210