PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/12-15:12:30
G02     35.7           53.1                7.5 +/-    1.12       9.1 +/-    1.12  0.030 / 0.030
G05     138.2          65.6                9.3 +/-    0.39      10.1 +/-    0.39  0.040 / 0.030
G06     57.1           11.0                6.0 +/-    1.35      16.5 +/-    1.35  0.030 / 0.040
G12     190.3          60.0                9.4 +/-    0.57      10.7 +/-    0.57  0.040 / 0.040
G25     282.4          58.8                7.2 +/-    0.76       8.2 +/-    0.76  0.130 / 0.210
G29     311.2          32.0                7.4 +/-    2.06      12.5 +/-    2.06  0.180 / 0.270