PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-17:42:40
G10     251.6          29.3               10.2 +/-    2.01      18.1 +/-    2.01  0.050 / 0.040
G13     51.9           28.0                6.2 +/-    2.94      11.3 +/-    2.94  0.040 / 0.050
G15     82.2           56.7                9.2 +/-    0.94      10.8 +/-    0.94  0.160 / 0.600
G16     293.9          15.9                7.7 +/-    1.51      18.6 +/-    1.51  0.120 / 0.590
G20     273.4          53.1               10.5 +/-    3.08      12.8 +/-    3.08  0.060 / 0.240
G21     335.2          60.4                8.8 +/-    0.62      10.0 +/-    0.62  0.080 / 0.220
G26     267.1          15.0                6.7 +/-    2.99      16.7 +/-    2.99  0.030 / 0.040
G29     164.1          49.8               10.7 +/-    0.46      13.5 +/-    0.46  0.030 / 0.030