Observed Energy Distribution: Q0052+251 log nu0 log nu1 log nu2 log nuFnu Date Aper Filter Instrument Ref (Hz) (Hz) (Hz) (Jy Hz) (") or or Detector Telescope 9.70 9.70 9.70 6.32( + 0.06 - 0.07 ) 1983 Nov 18.0 - VLA AJ098,1195 12.48 12.40 12.56 12.13( + 0.06 - 0.07 ) 1983 300.0 IRAS4 IRAS(AO) Table11 12.70 12.57 12.87 11.70( + 0.08 - 0.10 ) 1983 300.0 IRAS3 IRAS(AO) Table11 13.08 13.00 13.20 12.03( + 0.09 - 0.11 ) 1983 300.0 IRAS2 IRAS(AO) Table11 13.40 13.30 13.55 12.18( + 0.07 - 0.08 ) 1983 300.0 IRAS1 IRAS(AO) Table11 13.47 13.36 13.56 12.06( + 0.11 - 0.11 ) 1981 Jul 21 5.0 N Hale ApJS63,615 13.90 13.86 13.94 12.01( + 0.04 - 0.04 ) 1981 Jul 21 5.0 L' Hale ApJS63,615 14.13 14.11 14.19 12.09( + 0.02 - 0.02 ) 1980 Oct 19 5.0 K Hale ApJS63,615 14.13 14.11 14.19 12.05( + 0.03 - 0.03 ) 1981 Jul 21 5.0 K Hale ApJS63,615 14.26 14.23 14.31 11.94( + 0.02 - 0.02 ) 1980 Oct 19 5.0 H Hale ApJS63,615 14.26 14.23 14.31 11.89( + 0.04 - 0.04 ) 1981 Jul 21 5.0 H Hale ApJS63,615 14.38 14.35 14.45 11.99( + 0.03 - 0.03 ) 1980 Oct 19 5.0 J Hale ApJS63,615 14.38 14.35 14.45 11.93( + 0.03 - 0.03 ) 1981 Jul 21 5.0 J Hale ApJS63,615 14.56 14.55 14.56 12.05( + 0.01 - 0.01 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.57 14.56 14.58 12.02( + 0.02 - 0.02 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.58 14.58 14.58 12.03( + 0.00 - 0.00 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.62 14.62 14.63 12.01( + 0.00 - 0.00 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.64 14.63 14.64 12.00( + 0.00 - 0.00 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.65 14.64 14.66 11.99( + 0.00 - 0.00 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.67 14.66 14.67 12.00( + 0.00 - 0.00 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.68 14.67 14.69 12.02( + 0.02 - 0.02 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.76 14.76 14.77 12.06( + 0.00 - 0.00 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.83 14.83 14.84 12.18( + 0.01 - 0.01 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.86 14.85 14.86 12.25( + 0.01 - 0.01 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.90 14.90 14.91 12.27( + 0.01 - 0.01 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.92 14.91 14.92 12.28( + 0.01 - 0.01 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.93 14.92 14.94 12.26( + 0.00 - 0.00 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.94 14.94 14.95 12.26( + 0.01 - 0.01 ) 1980 Nov 15 15.0 AB Hale ApJS63,615 14.99 14.98 14.99 12.42( + 0.03 - 0.04 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.00 14.99 15.01 12.37( + 0.03 - 0.03 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.02 15.01 15.03 12.36( + 0.02 - 0.03 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.03 15.03 15.04 12.37( + 0.02 - 0.03 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.05 15.04 15.06 12.34( + 0.02 - 0.03 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.07 15.06 15.08 12.28( + 0.03 - 0.03 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.09 15.08 15.10 12.27( + 0.03 - 0.03 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.11 15.10 15.12 12.29( + 0.04 - 0.04 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.15 15.15 15.16 12.35( + 0.05 - 0.05 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.17 15.16 15.17 12.37( + 0.05 - 0.05 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.18 15.17 15.18 12.39( + 0.04 - 0.04 ) 1983 Feb 8 15.0 - LWR15214 RDAF 15.19 15.18 15.20 12.40( + 0.02 - 0.03 ) 1983 Feb 8 15.0 - SWP19224 RDAF 15.20 15.20 15.21 12.47( + 0.02 - 0.02 ) 1983 Feb 8 15.0 - SWP19224 RDAF 15.25 15.24 15.25 12.41( + 0.02 - 0.02 ) 1983 Feb 8 15.0 - SWP19224 RDAF 15.28 15.28 15.29 12.47( + 0.02 - 0.02 ) 1983 Feb 8 15.0 - SWP19224 RDAF 15.30 15.29 15.31 12.47( + 0.02 - 0.02 ) 1983 Feb 8 15.0 - SWP19224 RDAF 15.36 15.35 15.37 12.45( + 0.02 - 0.02 ) 1983 Feb 8 15.0 - SWP19224 RDAF 15.38 15.37 15.39 12.45( + 0.02 - 0.03 ) 1983 Feb 8 15.0 - SWP19224 RDAF 17.38 16.68 17.93 11.60( + 0.50 - 0.16 ) 1980 Jan 10 360.0 IPC IPC Table3 17.99 17.68 18.38 11.43( + 0.00 - 0.00 ) 1985 Dec 20 - ME EXOSAT ApJ384,062