PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/23-00:13:10
G08     283.9          23.1               11.9 +/-    1.33      24.3 +/-    1.33  0.050 / 0.130
G10     21.9           63.2                9.0 +/-    0.66       9.9 +/-    0.66  0.050 / 0.160
G14     238.3          54.5               12.3 +/-    1.60      14.8 +/-    1.60  0.090 / 0.110
G18     72.5           47.2               10.6 +/-    0.42      13.9 +/-    0.42  0.090 / 0.120
G21     149.1          31.4               13.2 +/-    0.75      22.4 +/-    0.75  0.030 / 0.030
G24     50.9           23.1                9.6 +/-    0.59      19.6 +/-    0.59  0.030 / 0.030
G27     245.2          27.1               14.0 +/-    2.75      26.1 +/-    2.75  0.110 / 0.120
G31     183.6          11.1                4.5 +/-   37.41      12.2 +/-   37.41  0.090 / 0.110
G32     260.2          70.2               11.4 +/-    0.93      12.1 +/-    0.93  0.040 / 0.070