PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/09-00:27:30
G02     52.9           38.3                7.7 +/-    0.75      11.5 +/-    0.75  0.040 / 0.040
G05     72.6           66.3                8.9 +/-    0.40       9.7 +/-    0.40  0.030 / 0.040
G12     185.4          40.6               11.3 +/-    1.37      16.2 +/-    1.37  0.130 / 0.530
G21     264.5          11.5                7.8 +/-    4.60      20.9 +/-    4.60  0.200 / 0.690
G25     252.0          56.5                8.9 +/-    1.29      10.4 +/-    1.29  0.050 / 0.080
G29     322.2          45.8                7.7 +/-    1.16      10.3 +/-    1.16  0.040 / 0.090