PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/05-12:12:30
G10     293.4          50.9                4.4 +/-    2.75       5.4 +/-    2.75  0.100 / 0.150
G15     46.7           30.7                2.8 +/-    0.77       4.9 +/-    0.77  0.080 / 0.130
G20     345.4          65.4                4.4 +/-    0.46       4.8 +/-    0.46  0.040 / 0.040
G21     97.1           70.9                5.9 +/-    0.65       6.2 +/-    0.65  0.040 / 0.030
G24     97.9           25.0                5.5 +/-    1.09      10.8 +/-    1.09  0.110 / 0.090
G27     306.0          31.0                5.0 +/-    1.90       8.6 +/-    1.90  0.100 / 0.080
G32     209.7          26.3                4.1 +/-    1.14       7.8 +/-    1.14  0.040 / 0.100