PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-00:58:00
G03     244.9          68.5                3.8 +/-    0.80       4.0 +/-    0.80  0.040 / 0.040
G09     302.7          17.3                4.7 +/-    2.47      11.1 +/-    2.47  0.040 / 0.040
G14     99.1           14.6                4.8 +/-    2.00      12.0 +/-    2.00  0.030 / 0.040
G16     138.7          56.8                7.2 +/-    0.70       8.4 +/-    0.70  0.040 / 0.040
G22     197.3          57.7                5.9 +/-    0.64       6.9 +/-    0.64  0.090 / 0.240
G23     317.4          47.0                5.2 +/-    0.85       6.9 +/-    0.85  0.090 / 0.220
G26     75.0           54.4                3.9 +/-    0.83       4.6 +/-    0.83  0.120 / 0.360
G31     50.6           23.3                2.1 +/-    2.51       4.2 +/-    2.51  0.140 / 0.420