PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-21:12:50
G10     266.7          37.3               13.7 +/-    1.86      20.9 +/-    1.86  0.070 / 0.070
G13     42.6           19.9               14.9 +/-    2.48      32.9 +/-    2.48  0.070 / 0.060
G15     59.4           48.8               16.6 +/-    0.94      21.3 +/-    0.94  0.180 / 0.260
G16     283.2          11.2               13.2 +/-    2.52      35.7 +/-    2.52  0.140 / 0.250
G18     301.1          64.5               13.4 +/-    0.73      14.6 +/-    0.73  0.040 / 0.040
G20     54.5           34.8               15.6 +/-    1.62      24.9 +/-    1.62  0.040 / 0.040
G21     7.9            72.6               16.4 +/-    1.05      17.1 +/-    1.05  0.050 / 0.110
G24     121.6          13.8               21.9 +/-    1.50      56.0 +/-    1.50  0.060 / 0.100
G27     317.9          20.2               12.6 +/-    1.42      27.5 +/-    1.42  0.120 / 0.200
G29     166.0          26.9               18.8 +/-    1.08      35.2 +/-    1.08  0.230 / 0.230