Common Name: 4C +69.21 MOJAVE 15 GHz [Total intensity movie]   | [Polariz. movie] VLBA 1.4 GHz: BG246
B1950 Name: 1642+690 2 cm VLBA Image map
J2000 Name: J1642+6856
R.A. and Dec. (J2000): 16h42m7.849s
+68d56'39.756"
AGN Class: LSP HPQ
Redshift: 0.751 (Lawrence et al. 1986, AJ 91, 494)
Luminosity Distance: 4646 Mpc ; 7.35 pc/mas
Radio Spectrum: Flat
Gamma-ray Association LAT: , EGRET: N, TeV: N
Kpc-scale morphology: Two-sided
Jet Speed: Maximum: 346 ± 6 μas/y ; 14.54 ± 0.26 c
Median: N/A ;
based on 5 moving features
Lister et al. 2019, ApJ,874,43
Separation Versus Time Plot: PNG    PDF
Stacked 15 GHz Stokes I VLBA images:
Natural weight:   PNG PDF FITS
Circular Beam:   PNG PDF FITS
Tapered Beam:   PNG PDF FITS
Stacking for 1994-2015:   FITS

Stacked 15 GHz Polarization VLBA images:
Method I:   Cumulative GIF, pol PNG, I FITS, P FITS, m FITS, EVPA FITS
Method II:   std EVPA PNG, FITS

Rotation Measure 8-15 GHz Map: | 2006_03_09 |

Spectral Index 8-15 GHz Map: | 2006_03_09 |


Multifrequency MOJAVE VLBA Data:

Epoch
8.1 GHz
8.4 GHz
12.1 GHz
2006-03-09
uvf  FITS  PNG  PDF 
uvf  FITS  PNG  PDF 
uvf  FITS  PNG  PDF 

VLBA 23 GHz:
Kpc-scale: O'Dea, Barvainis, and Challis 1988, AJ, 96, 435
23 GHz Image
Kpc Image

Fermi LAT and 15 GHz VLBA Light Curves

Fermi LAT and 15 GHz VLBA Light Curves
VLBA 43 GHz: Cheng et al. 2020
Multiepoch Radio Spectrum:
43 GHz Image
Radio Spectrum
Comments: Promoted 1.5 Jy source; VCV2001 list as galaxy w/ V = 20.5 but Lawrence et al. 1996 find broad emission lines; Arsioli 2018 claims LAT detection

If you use these data in a publication, we ask that you please contact us so we can add a link to the list of external MOJAVE publications, and ask that you cite Lister et al., 2018, ApJS, 234, 12 and include the following acknowledgment: "This research has made use of data from the MOJAVE database that is maintained by the MOJAVE team (Lister et al. 2018)"

Important Note: The MOJAVE team, working with the OVRO 40m AGN monitoring team checks and adjusts the flux density scaling of the MOJAVE VLBA data for possible systematics based on near-simultaneous OVRO 40m measurements at 15 GHz. Asterisked entries below denote epochs that have not yet been checked and corrected.
Epoch
(YYYY-MM-DD)
VLBA Code VLBA I
(mJy)
VLBA P
(mJy)
VLBA
P (%)
VLBA
EVPA (deg.)
I Image (Nat. Weight) Visibility
Data
Stokes I Radplot Polarization
Image
Full
Montage
2012-09-08 BL186 2867 no data FITS   PNG   PDF UVF PNG   PDF PNG
2012-01-14 BL178AF 2371 104 4.4 125 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2011-02-20 BL149DB 1688 33 2.0 63 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2010-01-16 BL149CG 3504 132 3.8 22 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2008-11-26 BL149BF 3825 190 5.0 104 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2007-09-06 BL149AG 2163 56 2.6 94 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2007-04-30 BK134C 2064 no data FITS   PNG   PDF UVF PNG   PDF PNG
2006-03-09 BL137B 1882 34 1.8 92 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2002-11-02 BC119A 1381 27 1.9 51 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2002-02-18 BR077K 1228 no data FITS   PNG   PDF UVF PNG   PDF PNG
2001-12-30 BR077H 1324 no data FITS   PNG   PDF UVF PNG   PDF PNG
2000-12-28 BK068F 971 no data FITS   PNG   PDF UVF PNG   PDF PNG
1997-06-01 BG064 746 28 3.7 170 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
1996-10-27 BK037D 600 no data FITS   PNG   PDF UVF PNG   PDF PNG
1996-07-10 BK037C 616 no data FITS   PNG   PDF UVF PNG   PDF PNG
1996-05-16 BK037B 693 no data FITS   PNG   PDF UVF PNG   PDF PNG
1995-01-20 BP14 1103 no data FITS   PNG   PDF UVF PNG   PDF PNG
1994-08-31 BZ004 851 no data FITS   PNG   PDF UVF PNG   PDF PNG
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