PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-01:58:10
G01     295.1          39.0                7.1 +/-    2.03      10.5 +/-    2.03  0.030 / 0.050
G03     310.2          12.3                5.2 +/-    5.30      13.8 +/-    5.30  0.030 / 0.080
G10     116.6          32.4                6.2 +/-    0.67      10.4 +/-    0.67  0.080 / 0.090
G11     267.5          27.8                6.8 +/-    0.95      12.6 +/-    0.95  0.070 / 0.080
G14     21.1           60.0                6.1 +/-    0.50       6.9 +/-    0.50  0.060 / 0.100
G22     312.8          34.5                4.5 +/-    1.91       7.2 +/-    1.91  0.070 / 0.120
G25     68.0           18.0                6.3 +/-    0.66      14.6 +/-    0.66  0.050 / 0.050
G31     157.5          75.1                6.8 +/-    1.03       7.0 +/-    1.03  0.050 / 0.050
G32     44.7           47.2                4.1 +/-    0.68       5.3 +/-    0.68  0.030 / 0.030