PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/05-18:28:00
G08     305.3          20.6               12.7 +/-    1.50      27.6 +/-    1.50  0.060 / 0.080
G10     339.7          61.0               12.8 +/-    0.65      14.4 +/-    0.65  0.080 / 0.080
G14     221.0          35.6               19.0 +/-    2.04      29.8 +/-    2.04  0.060 / 0.060
G18     48.4           56.2               14.2 +/-    1.27      16.8 +/-    1.27  0.060 / 0.060
G21     137.9          47.2               18.5 +/-    0.40      24.2 +/-    0.40  0.090 / 0.080
G24     69.9           30.1               15.0 +/-    1.15      26.2 +/-    1.15  0.080 / 0.070
G27     267.2          36.5               17.6 +/-    1.28      27.1 +/-    1.28  0.040 / 0.050
G32     228.0          55.5               17.0 +/-    2.96      20.1 +/-    2.96  0.040 / 0.040