PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-21:42:30
G02     39.3           50.2                9.2 +/-    1.34      11.6 +/-    1.34  0.040 / 0.030
G05     119.9          67.7               11.4 +/-    0.62      12.3 +/-    0.62  0.030 / 0.030
G12     188.0          56.6               12.2 +/-    0.42      14.3 +/-    0.42  0.040 / 0.040
G25     282.6          57.5                3.0 +/-    2.06       3.5 +/-    2.06  0.040 / 0.050
G29     312.3          33.0                7.4 +/-    1.47      12.2 +/-    1.47  0.040 / 0.030