PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-18:27:40
G02     202.2          28.0               13.9 +/-    1.45      25.3 +/-    1.45  0.050 / 0.140
G06     162.7          64.4               14.5 +/-    1.86      15.9 +/-    1.86  0.060 / 0.130
G12     305.3          13.5               10.4 +/-    2.17      26.8 +/-    2.17  0.100 / 0.270
G17     29.8           54.0               10.4 +/-    0.72      12.6 +/-    0.72  0.100 / 0.220
G19     340.4          68.7               11.7 +/-    0.64      12.5 +/-    0.64  0.060 / 0.110
G24     302.7          35.9               12.6 +/-    1.67      19.7 +/-    1.67  0.060 / 0.110
G28     97.0           34.7               11.8 +/-    0.60      18.9 +/-    0.60  0.080 / 0.140