PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/27-08:43:00
G05     50.2           13.2                2.3 +/-    2.81       6.0 +/-    2.81  0.040 / 0.060
G10     238.5          16.1                5.8 +/-    0.92      14.0 +/-    0.92  0.050 / 0.050
G13     70.5           35.3                4.8 +/-    1.15       7.6 +/-    1.15  0.320 / 0.260
G15     116.8          54.6                7.5 +/-    0.40       8.9 +/-    0.40  0.310 / 0.300
G16     315.1          10.9                0.4 +/-   10.63       1.0 +/-   10.63  0.060 / 0.110
G20     251.9          40.0                7.4 +/-    1.39      10.7 +/-    1.39  0.060 / 0.090
G21     321.4          52.8                5.1 +/-    0.78       6.3 +/-    0.78  0.270 / 0.280
G26     288.9          18.3                4.5 +/-    0.95      10.2 +/-    0.95  0.120 / 0.190
G29     153.7          63.0                7.5 +/-    0.30       8.3 +/-    0.30  0.030 / 0.030