PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-14:57:50
G02     36.5           52.5                6.5 +/-    0.44       8.0 +/-    0.44  0.040 / 0.040
G05     137.5          66.0              -26.5 +/-    8.49     -28.7 +/-    8.49  0.040 / 0.040
G06     57.5           10.7                6.1 +/-    2.22      16.8 +/-    2.22  0.030 / 0.030
G12     190.2          59.5                8.9 +/-    1.10      10.1 +/-    1.10  0.030 / 0.050
G25     280.8          59.1                6.7 +/-    1.06       7.7 +/-    1.06  0.040 / 0.040
G29     311.7          32.6                5.5 +/-    1.05       9.1 +/-    1.05  0.150 / 0.290