PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-16:27:50
G02     258.4          77.4                8.7 +/-    0.22       8.9 +/-    0.22  0.130 / 0.180
G05     170.0          21.3                9.6 +/-    2.40      20.4 +/-    2.40  0.110 / 0.160
G06     40.4           49.5                8.7 +/-    0.78      11.1 +/-    0.78  0.090 / 0.110
G12     322.1          64.2                7.6 +/-    0.78       8.3 +/-    0.78  0.110 / 0.120
G17     77.1           16.8                8.3 +/-    1.19      19.7 +/-    1.19  0.150 / 0.280
G19     60.7           37.8                7.1 +/-    0.71      10.7 +/-    0.71  0.320 / 0.190
G24     236.6          30.6                8.7 +/-    1.76      15.1 +/-    1.76  0.030 / 0.040
G25     317.5          18.9                6.3 +/-    1.11      14.3 +/-    1.11  0.030 / 0.040