PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/17-17:43:10
G08     303.4          21.1               10.7 +/-    1.56      23.0 +/-    1.56  0.070 / 0.080
G10     344.5          61.6               10.0 +/-    0.53      11.2 +/-    0.53  0.060 / 0.070
G14     222.4          37.4               17.6 +/-    0.90      26.8 +/-    0.90  0.050 / 0.070
G18     52.1           54.9               10.5 +/-    0.98      12.5 +/-    0.98  0.110 / 0.080
G21     139.6          44.6               15.5 +/-    0.71      21.0 +/-    0.71  0.080 / 0.130
G24     67.3           29.6               10.2 +/-    0.70      18.1 +/-    0.70  0.070 / 0.110
G27     264.3          35.8               14.8 +/-    1.66      23.1 +/-    1.66  0.090 / 0.130
G32     230.6          58.1               15.0 +/-    2.29      17.3 +/-    2.29  0.060 / 0.050