PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-06:58:00
G10     242.8          20.8                5.9 +/-    3.63      12.6 +/-    3.63  0.040 / 0.050
G13     63.0           33.6                6.7 +/-    1.06      10.9 +/-    1.06  0.040 / 0.040
G15     104.2          56.8                9.4 +/-    0.62      11.0 +/-    0.62  0.160 / 0.350
G16     309.8          12.5                4.3 +/-    1.69      11.3 +/-    1.69  0.260 / 0.240
G20     258.4          44.6                8.8 +/-    3.16      11.9 +/-    3.16  0.140 / 0.350
G21     326.6          55.6                6.2 +/-    0.54       7.3 +/-    0.54  0.180 / 0.270
G26     281.3          17.8                6.0 +/-    0.72      14.0 +/-    0.72  0.070 / 0.110
G29     156.9          55.2                9.6 +/-    0.40      11.4 +/-    0.40  0.060 / 0.120