PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-12:12:40
G02     201.2          13.7                1.2 +/-    2.18       3.0 +/-    2.18  0.090 / 0.100
G06     171.0          50.5                6.0 +/-    0.59       7.5 +/-    0.59  0.100 / 0.110
G13     229.6          15.7                4.7 +/-    1.16      11.4 +/-    1.16  0.120 / 0.160
G17     19.9           61.5                4.8 +/-    0.70       5.3 +/-    0.70  0.120 / 0.220
G19     295.8          69.3                3.1 +/-    0.68       3.3 +/-    0.68  0.130 / 0.330
G24     310.9          29.2                3.5 +/-    1.00       6.3 +/-    1.00  0.150 / 0.300
G28     82.8           42.7                5.0 +/-    0.78       6.9 +/-    0.78  0.040 / 0.050
G30     157.2          19.6                6.1 +/-    1.22      13.6 +/-    1.22  0.040 / 0.040