PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-14:42:20
G02     46.9           42.9                6.8 +/-    0.96       9.4 +/-    0.96  0.030 / 0.020
G05     103.4          70.9                9.2 +/-    0.69       9.7 +/-    0.69  0.030 / 0.020
G12     185.6          48.1                9.5 +/-    0.58      12.3 +/-    0.58  0.050 / 0.040
G25     266.3          58.2                7.2 +/-    1.41       8.3 +/-    1.41  0.040 / 0.060
G29     318.1          40.2                5.3 +/-    0.80       7.7 +/-    0.80  0.050 / 0.060