PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-14:28:10
G02     63.2           29.1               10.5 +/-    0.73      18.8 +/-    0.73  0.030 / 0.020
G05     54.9           59.5               10.5 +/-    0.52      12.0 +/-    0.52  0.020 / 0.030
G12     185.5          30.1               12.0 +/-    2.15      21.0 +/-    2.15  0.070 / 0.210
G13     126.9          17.4               15.3 +/-    1.62      36.0 +/-    1.62  0.100 / 0.140
G15     161.0          15.2               13.2 +/-    1.35      32.6 +/-    1.35  0.100 / 0.110
G20     210.9          62.0               13.4 +/-    0.93      14.9 +/-    0.93  0.100 / 0.090
G21     275.5          23.0                8.2 +/-    1.46      16.9 +/-    1.46  0.030 / 0.030
G25     230.9          49.1               11.3 +/-    2.63      14.4 +/-    2.63  0.040 / 0.040
G29     336.1          62.9                9.2 +/-    0.50      10.2 +/-    0.50  0.140 / 0.260