PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-09:12:50
G08     270.2          17.7                6.1 +/-    1.45      14.2 +/-    1.45  0.050 / 0.060
G10     61.5           58.4                4.7 +/-    0.49       5.4 +/-    0.49  0.040 / 0.070
G11     312.2          16.3               -5.3 +/-   12.30     -12.8 +/-   12.30  0.130 / 0.200
G14     261.9          62.2                5.7 +/-    0.72       6.4 +/-    0.72  0.130 / 0.200
G18     312.6          31.1                7.3 +/-    1.72      12.5 +/-    1.72  0.030 / 0.030
G20     104.2          14.5                4.7 +/-    0.99      11.7 +/-    0.99  0.030 / 0.030
G21     154.8          15.3                5.2 +/-    2.74      13.0 +/-    2.74  0.170 / 0.340
G27     231.2          15.5                7.0 +/-    1.35      17.1 +/-    1.35  0.160 / 0.250
G31     176.7          32.4                5.8 +/-    1.52       9.6 +/-    1.52  0.120 / 0.360
G32     346.4          73.5                5.6 +/-    0.47       5.8 +/-    0.47  0.110 / 0.380