PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/23-20:42:30
G08     265.5          17.5               12.9 +/-    0.72      30.1 +/-    0.72  0.230 / 0.250
G10     62.9           58.4               11.6 +/-    0.75      13.3 +/-    0.75  0.150 / 0.230
G11     310.6          18.1               11.7 +/-    2.03      26.9 +/-    2.03  0.210 / 0.430
G14     271.7          67.5               13.1 +/-    0.66      14.0 +/-    0.66  0.140 / 0.400
G18     93.9           34.2               12.6 +/-    0.98      20.2 +/-    0.98  0.080 / 0.090
G21     153.4          10.0               15.8 +/-    1.86      44.2 +/-    1.86  0.070 / 0.100
G24     39.6           10.1               12.9 +/-    5.37      35.9 +/-    5.37  0.070 / 0.420
G27     229.5          14.5               13.3 +/-    1.56      33.6 +/-    1.56  0.100 / 0.420
G31     180.1          29.5               13.9 +/-    0.97      24.6 +/-    0.97  0.030 / 0.030
G32     337.5          73.7               12.5 +/-    0.54      13.0 +/-    0.54  0.030 / 0.020