PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-22:28:10
G10     244.7          21.6               13.3 +/-    2.17      28.1 +/-    2.17  0.040 / 0.080
G13     60.7           33.3                8.6 +/-    0.60      14.1 +/-    0.60  0.040 / 0.080
G15     108.1          58.3               10.3 +/-    0.74      11.8 +/-    0.74  0.100 / 0.590
G16     301.3          16.0                5.6 +/-    3.40      13.6 +/-    3.40  0.120 / 0.560
G20     249.4          16.8                6.4 +/-    1.28      15.3 +/-    1.28  0.050 / 0.110
G21     324.2          54.3                9.4 +/-    0.99      11.3 +/-    0.99  0.050 / 0.120
G26     273.3          18.4                9.4 +/-    1.46      21.5 +/-    1.46  0.030 / 0.040
G29     162.9          59.6               11.1 +/-    1.13      12.6 +/-    1.13  0.020 / 0.040