PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/06-21:27:50
G10     257.5          32.2               11.3 +/-    2.11      18.9 +/-    2.11  0.170 / 0.000
G13     47.3           24.9               10.5 +/-    2.66      20.6 +/-    2.66  0.160 / 0.180
G15     79.6           58.8               11.5 +/-    0.95      13.2 +/-    0.95  0.120 / 0.370
G16     287.3          14.8                7.1 +/-    3.73      17.9 +/-    3.73  0.170 / 0.370
G20     281.0          55.5               10.3 +/-    2.44      12.2 +/-    2.44  0.100 / 0.210
G21     344.1          65.4               11.2 +/-    0.52      12.2 +/-    0.52  0.100 / 0.130
G26     260.3          12.3               11.0 +/-    2.21      29.1 +/-    2.21  0.030 / 0.040
G27     322.2          10.5              -12.1 +/-   19.84     -33.5 +/-   19.84  0.030 / 0.050
G29     166.7          42.1               12.1 +/-    0.73      17.0 +/-    0.73  0.030 / 0.040