PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/08-14:57:50
G02     47.8           42.2                6.8 +/-    0.69       9.6 +/-    0.69  0.030 / 0.030
G05     98.6           70.9                7.5 +/-    0.61       7.9 +/-    0.61  0.040 / 0.030
G12     185.4          46.8                9.4 +/-    1.72      12.3 +/-    1.72  0.050 / 0.050
G25     263.8          58.0                7.6 +/-    0.93       8.8 +/-    0.93  0.040 / 0.050
G29     318.9          41.2                7.1 +/-    1.30      10.1 +/-    1.30  0.040 / 0.060