PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-05:27:30
G10     242.5          19.1                5.9 +/-    1.63      13.3 +/-    1.63  0.110 / 0.470
G13     64.5           34.8                5.3 +/-    1.30       8.5 +/-    1.30  0.120 / 0.470
G15     106.8          56.7                5.2 +/-    0.37       6.1 +/-    0.37  0.040 / 0.040
G16     305.2          15.0                2.9 +/-    2.28       7.2 +/-    2.28  0.050 / 0.040
G20     288.4          69.8                4.7 +/-    0.41       5.0 +/-    0.41  0.190 / 0.250
G21     322.1          53.1                5.3 +/-    1.44       6.5 +/-    1.44  0.080 / 0.230
G26     276.5          19.1                4.4 +/-    1.66       9.9 +/-    1.66  0.040 / 0.060
G29     161.5          62.0                6.3 +/-    0.71       7.0 +/-    0.71  0.030 / 0.060