PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/07-03:42:40
G01     227.3          18.0                6.2 +/-    2.97      14.3 +/-    2.97  0.150 / 0.360
G03     293.4          64.9                2.6 +/-    0.85       2.9 +/-    0.85  0.130 / 0.370
G14     86.1           23.8                3.5 +/-    1.09       6.9 +/-    1.09  0.030 / 0.030
G16     152.9          41.7                8.2 +/-    0.78      11.6 +/-    0.78  0.030 / 0.040
G22     223.1          72.2                5.5 +/-    0.63       5.7 +/-    0.63  0.060 / 0.080
G23     305.3          34.8                4.6 +/-    1.03       7.4 +/-    1.03  0.040 / 0.080
G26     108.0          54.8                5.9 +/-    0.91       7.0 +/-    0.91  0.050 / 0.080
G31     43.4           36.9                1.8 +/-    0.64       2.8 +/-    0.64  0.040 / 0.080