PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-10:42:30
G02     46.4           42.6                4.6 +/-    1.25       6.5 +/-    1.25  0.030 / 0.030
G05     109.8          70.1                8.1 +/-    0.59       8.5 +/-    0.59  0.030 / 0.030
G12     185.8          51.1                9.5 +/-    0.66      11.9 +/-    0.66  0.040 / 0.050
G25     270.9          58.6                3.8 +/-    1.12       4.4 +/-    1.12  0.040 / 0.050
G29     316.0          37.6                4.8 +/-    1.10       7.2 +/-    1.10  0.040 / 0.090