PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/09-12:42:40
G05     45.7           26.4                3.8 +/-    0.82       7.2 +/-    0.82  0.060 / 0.110
G13     86.4           34.6                5.9 +/-    0.95       9.4 +/-    0.95  0.050 / 0.120
G15     131.5          46.8                7.5 +/-    1.14       9.9 +/-    1.14  0.050 / 0.080
G20     241.4          33.1                7.8 +/-    3.43      12.9 +/-    3.43  0.050 / 0.090
G21     305.9          41.6                5.3 +/-    0.86       7.5 +/-    0.86  0.170 / 0.350
G25     203.9          18.8                4.9 +/-    1.55      11.2 +/-    1.55  0.120 / 0.430
G26     297.5          19.6                3.5 +/-    1.79       7.8 +/-    1.79  0.020 / 0.020
G29     130.9          84.0                7.8 +/-    0.66       7.8 +/-    0.66  0.030 / 0.030