PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-09:42:20
G02     35.2           52.8                5.7 +/-    0.99       6.9 +/-    0.99  0.040 / 0.030
G05     143.1          61.4                8.9 +/-    0.46      10.0 +/-    0.46  0.030 / 0.030
G06     53.1           15.6                4.3 +/-    2.07      10.6 +/-    2.07  0.030 / 0.030
G12     193.9          67.3                7.4 +/-    0.41       8.0 +/-    0.41  0.030 / 0.030
G25     296.8          53.6                5.7 +/-    2.42       6.9 +/-    2.42  0.050 / 0.060
G29     306.4          26.9                5.8 +/-    1.39      10.8 +/-    1.39  0.030 / 0.050