PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-02:12:20
G02     44.2           45.6                8.8 +/-    1.00      11.7 +/-    1.00  0.030 / 0.040
G05     105.4          68.6               10.6 +/-    0.80      11.2 +/-    0.80  0.040 / 0.050
G12     190.0          54.5               11.6 +/-    0.45      13.9 +/-    0.45  0.030 / 0.040
G25     276.8          57.8               15.6 +/-    1.07      18.1 +/-    1.07  0.030 / 0.030
G29     315.0          36.4                9.8 +/-    0.94      15.2 +/-    0.94  0.040 / 0.040