PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/09-22:12:00
G02     48.8           42.1                7.2 +/-    1.06      10.2 +/-    1.06  0.030 / 0.030
G05     85.1           68.7                7.9 +/-    0.70       8.4 +/-    0.70  0.030 / 0.030
G12     185.0          44.0               10.7 +/-    0.55      14.7 +/-    0.55  0.040 / 0.040
G25     259.2          58.0               10.5 +/-    1.64      12.2 +/-    1.64  0.040 / 0.040
G29     319.5          42.1                9.5 +/-    0.75      13.4 +/-    0.75  0.040 / 0.070