PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/08-07:12:40
G10     243.4          19.9                5.6 +/-    3.03      12.3 +/-    3.03  0.090 / 0.290
G13     63.3           34.5                6.2 +/-    1.18       9.9 +/-    1.18  0.080 / 0.330
G15     103.3          56.8                7.2 +/-    1.05       8.5 +/-    1.05  0.040 / 0.040
G16     304.5          14.9                2.3 +/-    1.69       5.7 +/-    1.69  0.030 / 0.050
G20     344.0          74.2                5.2 +/-    0.31       5.3 +/-    0.31  0.040 / 0.030
G21     323.9          54.3                5.4 +/-    0.62       6.4 +/-    0.62  0.040 / 0.040
G26     275.7          18.7                3.9 +/-    0.76       8.8 +/-    0.76  0.040 / 0.050
G29     161.7          60.1                6.6 +/-    0.32       7.5 +/-    0.32  0.040 / 0.050