PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/15-11:57:40
G02     40.3           48.3                4.0 +/-    1.43       5.1 +/-    1.43  0.030 / 0.030
G05     133.2          66.7                6.7 +/-    0.52       7.2 +/-    0.52  0.030 / 0.020
G06     57.4           9.9                 4.0 +/-    2.16      11.1 +/-    2.16  0.040 / 0.050
G12     186.5          57.6                7.5 +/-    0.80       8.7 +/-    0.80  0.060 / 0.040
G25     285.4          56.8                9.6 +/-    1.27      11.2 +/-    1.27  0.030 / 0.030
G29     311.4          32.3                5.2 +/-    0.85       8.7 +/-    0.85  0.030 / 0.040