PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-17:58:00
G08     309.3          19.0                9.1 +/-    1.99      20.6 +/-    1.99  0.050 / 0.070
G10     331.3          59.8                7.9 +/-    0.48       8.9 +/-    0.48  0.060 / 0.090
G14     218.4          31.4               10.2 +/-    2.01      17.4 +/-    2.01  0.040 / 0.060
G18     42.0           58.2                8.0 +/-    0.39       9.3 +/-    0.39  0.050 / 0.060
G21     134.4          51.1               10.7 +/-    1.18      13.3 +/-    1.18  0.050 / 0.090
G24     74.9           30.5                8.6 +/-    0.48      15.0 +/-    0.48  0.050 / 0.080
G27     272.8          37.5               10.3 +/-    1.44      15.6 +/-    1.44  0.030 / 0.050
G32     223.8          51.5               11.3 +/-    2.02      14.0 +/-    2.02  0.070 / 0.040