PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/10-18:43:00
G02     246.2          76.1                8.2 +/-    0.39       8.4 +/-    0.39  0.330 / 0.470
G05     170.9          17.5               11.2 +/-    1.66      26.2 +/-    1.66  0.130 / 0.350
G06     40.0           56.7                8.1 +/-    0.55       9.5 +/-    0.55  0.030 / 0.030
G12     321.0          51.8                8.4 +/-    0.87      10.3 +/-    0.87  0.030 / 0.040
G17     70.6           23.3                7.8 +/-    2.30      15.8 +/-    2.30  0.110 / 0.130
G19     59.2           36.4                6.4 +/-    0.76      10.0 +/-    0.76  0.100 / 0.130
G24     243.9          33.7                9.6 +/-    2.50      15.6 +/-    2.50  0.050 / 0.130
G25     316.5          12.8                4.2 +/-   18.10      10.9 +/-   18.10  0.060 / 0.120