Observed Energy Distribution: Q1704+608 log nu0 log nu1 log nu2 log nuFnu Date Aper Filter Instrument Ref (Hz) (Hz) (Hz) (Jy Hz) (") or or Detector Telescope 9.15 9.15 9.15 < 9.00 1974 21.0 - WSRT AApS34,129 9.18 9.18 9.18 7.42( + 0.00 - 0.00 ) 1985 Jan 4 1.2 - VLA ApJ329,122 9.70 9.70 9.70 7.95( + 0.05 - 0.05 ) 1974 6.0 - WSRT AApS34,129 9.70 9.70 9.70 7.95( + 0.02 - 0.03 ) 1987 Jan 10 - - VLA/C ApJ325,L21 9.70 9.70 9.70 7.48( + 0.07 - 0.08 ) 1985 Jan 4 0.4 - VLA ApJ329,122 9.70 9.70 9.70 7.60( + 0.00 - 0.00 ) 1983 Nov 18.0 - VLA AJ098,1195 10.18 10.18 10.18 8.09( + 0.05 - 0.06 ) 1987 Jan 10 - - VLA/C ApJ325,L21 10.36 10.36 10.36 8.04( + 0.07 - 0.08 ) 1987 Jan 10 - - VLA/C ApJ325,L21 10.95 10.95 10.95 < 10.21 1980 Mar 30 - - NRAO AJ087,0595 11.36 11.36 11.36 < 9.14 1987 Jan 10 - - IRAM ApJ353,416 11.48 11.30 11.70 < 11.48 1979 Feb 16 55.0 - Hale ApJ262,460 12.48 12.40 12.56 < 11.70 1983 300.0 IRAS4 IRAS(AO) Table11 12.70 12.57 12.87 11.93( + 0.06 - 0.07 ) 1983 300.0 IRAS3 IRAS(AO) Table11 13.08 13.00 13.20 12.33( + 0.03 - 0.04 ) 1983 300.0 IRAS2 IRAS(AO) Table11 13.40 13.30 13.55 12.18( + 0.07 - 0.09 ) 1983 300.0 IRAS1 IRAS(AO) Table11 13.47 13.36 13.56 12.15( + 0.09 - 0.09 ) 1976 Oct 10.0 N Hale ApJ230,079 13.47 13.36 13.56 12.15( + 0.08 - 0.08 ) 1976 Oct 14 5.0 N Hale ApJS63,615 13.47 13.36 13.56 12.08( + 0.10 - 0.10 ) 1981 Jul 24 5.0 N Hale ApJS63,615 13.90 13.86 13.94 12.08( + 0.02 - 0.02 ) 1988 Apr 25 6.0 L' IRTF Table9 13.90 13.86 13.94 12.09( + 0.06 - 0.06 ) 1981 Jul 24 5.0 L' Hale ApJS63,615 13.93 13.88 14.00 12.03( + 0.03 - 0.03 ) 1988 Apr 7 5.0 L MMT Table9 14.13 14.11 14.19 11.88( + 0.02 - 0.02 ) 1988 Apr 7 5.0 K MMT Table9 14.13 14.11 14.19 11.85( + 0.02 - 0.02 ) 1988 Apr 25 6.0 K IRTF Table9 14.13 14.11 14.19 11.96( + 0.03 - 0.03 ) 1976 Oct 10.0 K Hale ApJ230,079 14.13 14.11 14.19 11.91( + 0.03 - 0.03 ) 1980 Jun 1 5.0 K Hale ApJS63,615 14.13 14.11 14.19 11.96( + 0.03 - 0.03 ) 1976 Oct 14 5.0 K Hale ApJS63,615 14.13 14.11 14.19 11.91( + 0.04 - 0.04 ) 1981 Jul 24 5.0 K Hale ApJS63,615 14.26 14.23 14.31 11.78( + 0.02 - 0.02 ) 1988 Apr 7 5.0 H MMT Table9 14.26 14.23 14.31 11.79( + 0.02 - 0.02 ) 1988 Apr 25 6.0 H IRTF Table9 14.26 14.23 14.31 11.86( + 0.03 - 0.03 ) 1976 Oct 10.0 H Hale ApJ230,079 14.26 14.23 14.31 11.81( + 0.03 - 0.03 ) 1980 Jun 1 5.0 H Hale ApJS63,615 14.26 14.23 14.31 11.84( + 0.03 - 0.03 ) 1976 Oct 14 5.0 H Hale ApJS63,615 14.26 14.23 14.31 11.77( + 0.04 - 0.04 ) 1981 Jul 24 5.0 H Hale ApJS63,615 14.38 14.35 14.45 11.82( + 0.02 - 0.02 ) 1988 Apr 7 5.0 J MMT Table9 14.38 14.35 14.45 11.82( + 0.02 - 0.02 ) 1988 Apr 25 6.0 J IRTF Table9 14.38 14.35 14.45 11.90( + 0.04 - 0.04 ) 1976 Oct 10.0 J Hale ApJ230,079 14.38 14.35 14.45 11.82( + 0.03 - 0.03 ) 1980 Jun 1 5.0 J Hale ApJS63,615 14.38 14.35 14.45 11.89( + 0.04 - 0.04 ) 1976 Oct 14 5.0 J Hale ApJS63,615 14.38 14.35 14.45 11.84( + 0.04 - 0.04 ) 1981 Jul 24 5.0 J Hale ApJS63,615 14.45 14.45 14.45 11.90( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.50 14.50 14.50 11.90( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.55 14.54 14.55 11.83( + 0.02 - 0.02 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.55 14.55 14.55 11.92( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.56 14.55 14.57 11.94( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.56 14.55 14.57 11.85( + 0.03 - 0.03 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.58 14.57 14.58 11.86( + 0.02 - 0.02 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.59 14.58 14.60 11.92( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.59 14.58 14.60 11.90( + 0.02 - 0.02 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.60 14.60 14.60 11.95( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.61 14.60 14.62 11.94( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.61 14.60 14.62 11.95( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.62 14.62 14.63 11.99( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.65 14.65 14.65 11.98( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.68 14.67 14.68 11.99( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.68 14.67 14.68 11.91( + 0.01 - 0.01 ) 1988 Jun 12 5.0 - MMT/Blue Elvis,etal.1990 14.68 14.67 14.68 11.98( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.69 14.68 14.69 11.98( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.69 14.68 14.69 11.96( + 0.01 - 0.01 ) 1988 Jun 12 5.0 - MMT/Blue Elvis,etal.1990 14.69 14.68 14.69 11.99( + 0.00 - 0.00 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.70 14.70 14.70 12.02( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.75 14.75 14.75 12.05( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.76 14.75 14.77 12.00( + 0.03 - 0.03 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.76 14.75 14.77 11.94( + 0.01 - 0.01 ) 1988 Jun 12 5.0 - MMT/Blue Elvis,etal.1990 14.76 14.75 14.77 11.99( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.78 14.78 14.79 12.04( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.78 14.78 14.79 11.95( + 0.00 - 0.00 ) 1988 Jun 12 5.0 - MMT/Blue Elvis,etal.1990 14.78 14.78 14.79 12.00( + 0.01 - 0.01 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.80 14.80 14.80 12.10( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.83 14.82 14.83 12.07( + 0.00 - 0.00 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.83 14.82 14.83 11.99( + 0.01 - 0.01 ) 1988 Jun 12 5.0 - MMT/Blue Elvis,etal.1990 14.83 14.82 14.83 12.00( + 0.06 - 0.06 ) 1988 Sep 4 10.0 - MMT/FOGS Elvis,etal.1990 14.84 14.83 14.85 12.06( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.84 14.83 14.85 11.99( + 0.01 - 0.01 ) 1988 Jun 12 5.0 - MMT/Blue Elvis,etal.1990 14.85 14.85 14.85 12.13( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.86 14.85 14.86 12.08( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.86 14.85 14.86 11.96( + 0.01 - 0.01 ) 1988 Jun 12 5.0 - MMT/Blue Elvis,etal.1990 14.87 14.86 14.88 12.10( + 0.01 - 0.01 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.87 14.86 14.88 11.98( + 0.01 - 0.01 ) 1988 Jun 12 5.0 - MMT/Blue Elvis,etal.1990 14.90 14.90 14.90 12.12( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.91 14.91 14.92 12.07( + 0.03 - 0.03 ) 1980 Jun 5 15.0 AB Hale ApJS63,615 14.91 14.91 14.92 12.01( + 0.02 - 0.02 ) 1988 Jun 12 5.0 - MMT/Blue Elvis,etal.1990 14.95 14.94 14.96 12.15( + 0.02 - 0.02 ) 1977 Aug 10.0 - Hale ApJ230,079 14.98 14.97 14.99 12.11( + 0.03 - 0.03 ) 1979 Nov 22 15.0 - LWR06208 RDAF 14.98 14.97 14.99 12.03( + 0.02 - 0.02 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.00 14.99 15.01 12.03( + 0.02 - 0.03 ) 1979 Nov 22 15.0 - LWR06208 RDAF 15.00 14.99 15.01 11.97( + 0.03 - 0.03 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.02 15.01 15.03 12.06( + 0.02 - 0.03 ) 1979 Nov 22 15.0 - LWR06208 RDAF 15.02 15.01 15.03 12.00( + 0.02 - 0.02 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.04 15.03 15.05 12.02( + 0.02 - 0.03 ) 1979 Nov 22 15.0 - LWR06208 RDAF 15.04 15.03 15.05 12.01( + 0.02 - 0.02 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.08 15.07 15.08 12.01( + 0.03 - 0.03 ) 1979 Nov 22 15.0 - LWR06208 RDAF 15.08 15.07 15.08 12.04( + 0.02 - 0.02 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.09 15.08 15.10 12.07( + 0.03 - 0.03 ) 1979 Nov 22 15.0 - LWR06208 RDAF 15.09 15.08 15.10 12.01( + 0.02 - 0.03 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.10 15.10 15.11 12.01( + 0.04 - 0.04 ) 1979 Nov 22 15.0 - LWR06208 RDAF 15.10 15.10 15.11 12.00( + 0.03 - 0.03 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.12 15.11 15.12 12.07( + 0.04 - 0.04 ) 1979 Nov 22 15.0 - LWR06208 RDAF 15.12 15.11 15.12 12.08( + 0.03 - 0.03 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.13 15.12 15.14 12.08( + 0.03 - 0.03 ) 1979 Nov 22 15.0 - LWR06208 RDAF 15.13 15.12 15.14 12.15( + 0.03 - 0.03 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.17 15.16 15.18 11.96( + 0.04 - 0.04 ) 1979 Nov 22 15.0 - LWR06208 RDAF 15.17 15.16 15.18 12.03( + 0.04 - 0.04 ) 1986 Dec 3 15.0 - LWP09624 RDAF 15.21 15.20 15.22 12.21( + 0.02 - 0.02 ) 1978 Apr 17 15.0 - SWP01376 RDAF 15.21 15.20 15.22 12.15( + 0.02 - 0.02 ) 1983 Dec 1 15.0 - SWP21654 RDAF 15.23 15.22 15.23 12.22( + 0.02 - 0.02 ) 1978 Apr 17 15.0 - SWP01376 RDAF 15.23 15.22 15.23 12.17( + 0.02 - 0.02 ) 1983 Dec 1 15.0 - SWP21654 RDAF 15.29 15.28 15.30 12.20( + 0.03 - 0.03 ) 1978 Apr 17 15.0 - SWP01376 RDAF 15.29 15.28 15.30 12.15( + 0.02 - 0.02 ) 1983 Dec 1 15.0 - SWP21654 RDAF 15.31 15.30 15.32 12.13( + 0.03 - 0.03 ) 1978 Apr 17 15.0 - SWP01376 RDAF 15.31 15.30 15.32 12.18( + 0.02 - 0.02 ) 1983 Dec 1 15.0 - SWP21654 RDAF 15.35 15.34 15.36 12.19( + 0.03 - 0.03 ) 1978 Apr 17 15.0 - SWP01376 RDAF 15.35 15.34 15.36 12.14( + 0.02 - 0.02 ) 1983 Dec 1 15.0 - SWP21654 RDAF 15.37 15.36 15.39 12.10( + 0.03 - 0.03 ) 1978 Apr 17 15.0 - SWP01376 RDAF 15.37 15.36 15.39 12.07( + 0.02 - 0.02 ) 1983 Dec 1 15.0 - SWP21654 RDAF 17.38 16.68 17.93 10.56( + 0.15 - 0.10 ) 1980 360.0 IPC IPC Table3