PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-13:27:30
G05     51.7           11.3                2.5 +/-    2.54       6.7 +/-    2.54  0.340 / 0.290
G10     242.2          21.2                4.8 +/-    2.18      10.3 +/-    2.18  0.120 / 0.260
G13     63.5           33.2                4.8 +/-    1.29       7.8 +/-    1.29  0.060 / 0.050
G15     101.4          56.1                6.6 +/-    0.79       7.7 +/-    0.79  0.060 / 0.060
G16     305.2          15.3                2.2 +/-    2.20       5.3 +/-    2.20  0.240 / 0.340
G20     259.4          46.8                5.8 +/-    4.77       7.6 +/-    4.77  0.250 / 0.460
G21     323.8          53.5                3.0 +/-    0.61       3.6 +/-    0.61  0.030 / 0.040
G26     278.9          18.6                3.2 +/-    1.90       7.4 +/-    1.90  0.040 / 0.030
G29     159.6          63.3                6.7 +/-    1.03       7.4 +/-    1.03  0.090 / 0.110