PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/18-22:58:10
G08     269.7          19.5               12.0 +/-    1.99      26.7 +/-    1.99  0.110 / 0.300
G10     52.9           60.4               11.5 +/-    0.97      13.0 +/-    0.97  0.120 / 0.300
G11     313.2          15.6               11.3 +/-    2.93      27.6 +/-    2.93  0.060 / 0.160
G14     260.9          65.1               10.5 +/-    0.73      11.4 +/-    0.73  0.060 / 0.180
G18     88.5           38.2               12.1 +/-    0.35      18.1 +/-    0.35  0.090 / 0.270
G21     153.0          16.4               10.7 +/-    1.80      25.6 +/-    1.80  0.100 / 0.260
G24     41.9           14.0                8.4 +/-    1.10      21.4 +/-    1.10  0.100 / 0.150
G27     233.2          17.9               14.0 +/-    1.73      32.4 +/-    1.73  0.060 / 0.180
G31     181.7          23.5               13.3 +/-    2.60      26.9 +/-    2.60  0.040 / 0.060
G32     312.3          75.0               11.4 +/-    0.92      11.7 +/-    0.92  0.040 / 0.070