PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-12:57:20
G02     39.2           49.4                3.9 +/-    0.82       4.9 +/-    0.82  0.030 / 0.030
G05     137.2          66.0                7.0 +/-    0.57       7.6 +/-    0.57  0.030 / 0.020
G06     57.1           10.2                3.6 +/-    2.36      10.0 +/-    2.36  0.030 / 0.030
G12     187.9          59.0                7.8 +/-    0.46       8.9 +/-    0.46  0.030 / 0.040
G25     286.9          56.4                6.0 +/-    2.54       7.1 +/-    2.54  0.040 / 0.100
G29     311.0          31.8                5.9 +/-    0.84      10.0 +/-    0.84  0.070 / 0.080