Common Name: 4C +56.27 MOJAVE 15 GHz [Total intensity movie]   | [Polariz. movie] VLBA 1.4 GHz: University College Cork Program
B1950 Name: 1823+568 2 cm VLBA Image map
J2000 Name: J1824+5651
R.A. and Dec. (J2000): 18h24m7.068s
+56d51'1.491"
AGN Class: LSP BL Lac
Redshift: 0.664 (Lawrence et al. 1986, AJ 91, 494)
Luminosity Distance: 3991 Mpc ; 6.99 pc/mas
Radio Spectrum: Flat
Gamma-ray Association LAT: Y, EGRET: N, TeV: N
Kpc-scale morphology: One-sided Halo
Jet Speed: Maximum: 576 ± 48 μas/y ; 21.9 ± 1.8 c
Median: 175 ± 17 μas/y ; 6.63 ± 0.65 c
based on 11 moving feature
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_07_07 |

Spectral Index 8-15 GHz Map: | 2006_07_07 |


Multifrequency MOJAVE VLBA Data:

Epoch
8.1 GHz
8.4 GHz
12.1 GHz
2006-07-07
uvf  FITS  PNG  PDF 
uvf  FITS  PNG  PDF 
uvf  FITS  PNG  PDF 

VLBA 23 GHz:
Kpc-scale: Kollgaard et al. 1992, AJ, 104,1687
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. 2018
Multiepoch Radio Spectrum:
43 GHz Image
Radio Spectrum
Comments: Listed by Veron-Cetty and Veron (2001) as QSO but is an intermediate BL/QSO; OBC88 have VLA images

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.)
Stokes I Image
(Nat. weight)
Visibility
Data
Stokes I Radplot Polarization Image
(Nat. weight)
Full
Montage
2012-03-27 BL178AI 1539 119 7.7 5 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2011-06-06 BL149DJ 1347 118 8.8 10 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2010-10-25 BL149CT 1247 106 8.5 17 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2010-02-11 BL149CH 1662 123 7.4 27 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2009-05-28 BL149BL 1594 129 8.1 20 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2008-11-26 BL149BF 1420 116 8.2 13 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2008-07-30 BL149AL 1422 107 7.5 24 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2008-05-01 BL149AO 1322 84 6.4 19 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2007-09-06 BL149AG 1027 85 8.3 30 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2007-06-10 BL149AB 997 64 6.4 27 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2007-03-02 BL137O 977 70 7.1 16 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2006-07-07 BL137G 1267 98 7.7 27 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2005-12-22 BL123Q 1252 86 6.9 21 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2005-09-23 BL123O 1408 101 7.2 12 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2005-05-26 BL123G 1722 145 8.4 15 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2004-10-18 BL111P 1467 109 7.4 24 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2004-05-29 BG131C 1541 100 6.5 25 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2004-04-12 BG144B 1555 no data FITS   PNG   PDF UVF PNG   PDF PNG
2004-03-28 BC127F 1676 no data FITS   PNG   PDF UVF PNG   PDF PNG
2003-10-27 BM155C 1633 63 3.9 27 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2003-10-17 BC127D 1615 no data FITS   PNG   PDF UVF PNG   PDF PNG
2003-08-23 BG131B 1525 108 7.1 25 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2003-08-19 BC127C 1468 no data FITS   PNG   PDF UVF PNG   PDF PNG
2003-05-09 BL111H 1582 139 8.8 27 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2003-02-20 BG114C 1542 no data FITS   PNG   PDF UVF PNG   PDF PNG
2002-12-29 BC127B 1462 no data FITS   PNG   PDF UVF PNG   PDF PNG
2002-12-13 BG131A 1437 149 10.4 25 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2002-10-22 BC127A 1443 no data FITS   PNG   PDF UVF PNG   PDF PNG
2002-08-07 BG128A 1369 no data FITS   PNG   PDF UVF PNG   PDF PNG
2002-08-02 BR077M 1303 no data FITS   PNG   PDF UVF PNG   PDF PNG
2001-08-18 BG114B 1422 no data FITS   PNG   PDF UVF PNG   PDF PNG
2001-08-06 BM155A 1578 87 5.5 18 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2001-05-19 BG114A 1391 no data FITS   PNG   PDF UVF PNG   PDF PNG
2001-03-04 BK068E 1274 no data FITS   PNG   PDF UVF PNG   PDF PNG
2000-06-27 BT051 953 78 8.2 24 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2000-02-09 BG096 1036 no data FITS   PNG   PDF UVF PNG   PDF PNG
1999-12-30 BM108G 1005 no data FITS   PNG   PDF UVF PNG   PDF PNG
1999-12-27 BG095 1000 84 8.4 34 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
1999-09-26 BM108E 998 no data FITS   PNG   PDF UVF PNG   PDF PNG
1999-09-19 BP048D 835 no data FITS   PNG   PDF UVF PNG   PDF PNG
1999-07-28 BM108C 969 80 8.3 27 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
1999-07-25 BP048C 871 no data FITS   PNG   PDF UVF PNG   PDF PNG
1999-05-21 BK068A 1037 no data FITS   PNG   PDF UVF PNG   PDF PNG
1998-11-01 BK052E 1165 no data FITS   PNG   PDF UVF PNG   PDF PNG
1998-05-15 BA032A 1349 no data FITS   PNG   PDF UVF PNG   PDF PNG
1998-04-26 BC077C 1388 no data FITS   PNG   PDF UVF PNG   PDF PNG
1998-03-28 BC077B 1337 no data FITS   PNG   PDF UVF PNG   PDF PNG
1998-03-04 BC077A 1345 no data FITS   PNG   PDF UVF PNG   PDF PNG
1997-08-28 BK052A 1877 no data FITS   PNG   PDF UVF PNG   PDF PNG
1997-08-10 BM080 2032 184 9.1 15 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
1997-02-09 BG063 1580 no data FITS   PNG   PDF UVF PNG   PDF PNG
1996-05-16 BK037B 2224 no data FITS   PNG   PDF UVF PNG   PDF PNG
1995-12-15 BK37A 2320 no data FITS   PNG   PDF UVF PNG   PDF PNG
1995-07-16 BP021 1917 no data FITS   PNG   PDF UVF PNG   PDF PNG
1995-01-20 BP14 1554 no data FITS   PNG   PDF UVF PNG   PDF PNG
1994-08-31 BZ004 1270 no data FITS   PNG   PDF UVF PNG   PDF PNG
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