PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-04:12:30
G10     253.9          29.3               11.4 +/-    1.76      20.3 +/-    1.76  0.120 / 0.380
G13     50.4           27.8                4.5 +/-    2.82       8.2 +/-    2.82  0.100 / 0.450
G15     79.3           56.6                6.4 +/-    0.84       7.5 +/-    0.84  0.050 / 0.040
G16     291.0          15.3                9.9 +/-    1.31      24.4 +/-    1.31  0.040 / 0.040
G20     293.2          64.6                7.7 +/-    0.56       8.4 +/-    0.56  0.180 / 0.180
G21     337.9          62.5                7.5 +/-    0.64       8.3 +/-    0.64  0.090 / 0.230
G26     262.8          14.0               10.4 +/-    2.61      26.4 +/-    2.61  0.030 / 0.030
G29     166.2          46.3                7.9 +/-    0.62      10.4 +/-    0.62  0.030 / 0.030