Observed Energy Distribution: Q1116+215 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 6.99( + 0.01 - 0.01 ) 1983 Nov 18.0 - VLA AJ098,1195 13.17 13.07 13.26 < 12.21 1986 Feb 1 6.0 Q IRTF Table10 13.47 13.36 13.56 12.32( + 0.03 - 0.04 ) 1986 Feb 1 6.0 N IRTF Table10 13.90 13.86 13.94 12.33( + 0.02 - 0.02 ) 1986 Feb 4 6.0 L' IRTF Table9 13.90 13.86 13.94 12.53( + 0.02 - 0.02 ) 1988 Apr 25 6.0 L' IRTF Table9 13.90 13.86 13.94 12.41( + 0.00 - 0.00 ) 1986 Jan 24 5.0 L' Hale ApJ347,029 13.93 13.88 14.00 12.56( + 0.02 - 0.02 ) 1988 Apr 8 5.0 L MMT Table9 14.13 14.11 14.19 12.42( + 0.03 - 0.03 ) 1986 Feb 27 9.0 K MMT Table9 14.13 14.11 14.19 12.34( + 0.02 - 0.02 ) 1986 Feb 4 6.0 K IRTF Table9 14.13 14.11 14.19 12.47( + 0.02 - 0.02 ) 1988 Apr 8 5.0 K MMT Table9 14.13 14.11 14.19 12.44( + 0.02 - 0.02 ) 1988 Apr 25 6.0 K IRTF Table9 14.13 14.11 14.19 12.48( + 0.02 - 0.02 ) 1980 Apr 25 5.0 K Hale ApJS63,615 14.26 14.23 14.31 12.22( + 0.03 - 0.03 ) 1986 Feb 27 9.0 H MMT Table9 14.26 14.23 14.31 12.19( + 0.02 - 0.02 ) 1986 Feb 4 6.0 H IRTF Table9 14.26 14.23 14.31 12.28( + 0.02 - 0.02 ) 1988 Apr 8 5.0 H MMT Table9 14.26 14.23 14.31 12.31( + 0.02 - 0.02 ) 1988 Apr 25 6.0 H IRTF Table9 14.26 14.23 14.31 12.31( + 0.02 - 0.02 ) 1980 Apr 25 5.0 H Hale ApJS63,615 14.38 14.35 14.45 12.19( + 0.03 - 0.03 ) 1986 Feb 27 9.0 J MMT Table9 14.38 14.35 14.45 12.12( + 0.02 - 0.02 ) 1986 Feb 4 6.0 J IRTF Table9 14.38 14.35 14.45 12.21( + 0.02 - 0.02 ) 1988 Apr 8 5.0 J MMT Table9 14.38 14.35 14.45 12.22( + 0.02 - 0.02 ) 1988 Apr 25 6.0 J IRTF Table9 14.38 14.35 14.45 12.29( + 0.03 - 0.03 ) 1980 Apr 25 5.0 J Hale ApJS63,615 14.52 14.46 14.58 12.31( + 0.03 - 0.03 ) 1986 May 13 14.0 I MtHopk(24in) Table6 14.55 14.54 14.55 12.23( + 0.02 - 0.02 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.56 14.55 14.57 12.34( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.56 14.55 14.57 12.27( + 0.02 - 0.02 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.57 14.57 14.57 12.34( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.57 14.57 14.57 12.25( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.62 14.61 14.62 12.34( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.62 14.61 14.62 12.32( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.63 14.62 14.64 12.34( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.63 14.62 14.64 12.34( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.63 14.57 14.70 12.27( + 0.03 - 0.03 ) 1986 May 13 14.0 R MtHopk(24in) Table6 14.64 14.64 14.65 12.35( + 0.03 - 0.03 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.66 14.65 14.67 12.34( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.66 14.65 14.67 12.31( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.67 14.67 14.68 12.38( + 0.02 - 0.02 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.67 14.67 14.68 12.34( + 0.02 - 0.02 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.69 14.68 14.70 12.40( + 0.02 - 0.02 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.74 14.74 14.75 12.50( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.74 14.74 14.75 12.48( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.74 14.70 14.78 12.41( + 0.03 - 0.03 ) 1986 May 13 14.0 V MtHopk(24in) Table6 14.75 14.75 14.76 12.51( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.75 14.75 14.76 12.49( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.83 14.82 14.83 12.60( + 0.02 - 0.02 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.83 14.82 14.83 12.57( + 0.12 - 0.12 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.83 14.78 14.89 12.51( + 0.03 - 0.03 ) 1986 May 13 14.0 B MtHopk(24in) Table6 14.85 14.84 14.86 12.68( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.89 14.89 14.90 12.72( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.91 14.90 14.91 12.73( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.92 14.91 14.93 12.71( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.94 14.93 14.94 12.74( + 0.02 - 0.02 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.98 14.97 14.98 12.96( + 0.03 - 0.03 ) 1982 Jul 13 15.0 - LWR13669 RDAF 14.99 14.98 15.00 12.79( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.01 15.00 15.02 12.76( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.03 15.02 15.04 12.71( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.04 15.04 15.05 12.69( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.06 15.05 15.07 12.65( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.08 15.07 15.09 12.69( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.11 15.09 15.12 12.67( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.14 15.14 15.15 12.69( + 0.03 - 0.03 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.16 15.15 15.16 12.72( + 0.02 - 0.03 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.17 15.16 15.18 12.73( + 0.02 - 0.03 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.18 15.18 15.19 12.93( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08898 RDAF 15.18 15.18 15.19 12.93( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08899 RDAF 15.18 15.18 15.19 12.79( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - LWR13669 RDAF 15.20 15.19 15.20 12.89( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08898 RDAF 15.20 15.19 15.20 12.93( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08899 RDAF 15.20 15.19 15.20 12.85( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - SWP17416 RDAF 15.24 15.23 15.24 12.87( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08898 RDAF 15.24 15.23 15.24 12.93( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08899 RDAF 15.24 15.23 15.24 12.78( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - SWP17416 RDAF 15.28 15.27 15.28 12.90( + 0.02 - 0.03 ) 1980 May 3 15.0 - SWP08898 RDAF 15.28 15.27 15.28 12.94( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08899 RDAF 15.28 15.27 15.28 12.76( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - SWP17416 RDAF 15.29 15.28 15.30 12.89( + 0.03 - 0.03 ) 1980 May 3 15.0 - SWP08898 RDAF 15.29 15.28 15.30 12.93( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08899 RDAF 15.29 15.28 15.30 12.79( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - SWP17416 RDAF 15.36 15.35 15.36 12.90( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08898 RDAF 15.36 15.35 15.36 12.95( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08899 RDAF 15.36 15.35 15.36 12.78( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - SWP17416 RDAF 15.37 15.36 15.39 12.93( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08898 RDAF 15.37 15.36 15.39 12.99( + 0.02 - 0.02 ) 1980 May 3 15.0 - SWP08899 RDAF 15.37 15.36 15.39 12.85( + 0.02 - 0.02 ) 1982 Jul 13 15.0 - SWP17416 RDAF 17.38 16.68 17.93 11.22( + 0.07 - 0.04 ) 1979 Dec 6 - IPC IPC ApJ323,343