PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-19:43:10
G02     39.8           49.9               10.5 +/-    1.06      13.3 +/-    1.06  0.030 / 0.030
G05     117.2          68.5               11.5 +/-    0.98      12.2 +/-    0.98  0.020 / 0.020
G12     185.7          53.6               12.6 +/-    0.47      15.2 +/-    0.47  0.030 / 0.040
G25     278.4          58.3                4.3 +/-    0.89       5.0 +/-    0.89  0.030 / 0.040
G29     313.3          34.1                8.8 +/-    0.88      14.2 +/-    0.88  0.050 / 0.040