PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-23:28:10
G02     216.1          61.6               13.5 +/-    1.06      15.1 +/-    1.06  0.050 / 0.080
G06     56.2           73.6               10.8 +/-    0.51      11.3 +/-    0.51  0.060 / 0.110
G12     318.8          36.7               11.8 +/-    1.66      18.1 +/-    1.66  0.090 / 0.100
G17     55.6           35.2               10.4 +/-    1.73      16.4 +/-    1.73  0.060 / 0.080
G19     38.6           49.8               10.1 +/-    0.41      12.7 +/-    0.41  0.030 / 0.050
G24     264.7          41.5               13.5 +/-    1.26      19.2 +/-    1.26  0.050 / 0.040
G28     123.1          13.0               15.4 +/-    1.39      40.2 +/-    1.39  0.200 / 0.390