IERS B2201+315

Basic data :
4C 31.63 -- BL Lac Origin of the objects types : (Ref) Object type as listed in the reference "Ref" (acronym) Object type linked to the acronym according to the original reference () Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases Other object types: Sy1 (), Rad (2020A&A,4C,...), QSO (2008ApJS,QSO,...), X (2009A&A,2E,...), Bla (2009A&A,[MGL2009],...), smm (JCMTSE,JCMTSF), BLL (2014ApJS), AGN (CGRaBS), Bz? ([SRM2005]), G (LEDA), * (Gaia), BH? ([KB2007]), gam (3FGL), UV (PG), NIR (2MASS), MIR (WISE), IR (2MASSI), Opt (PSO) Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference ICRS coord. (ep=J2000) : 22 03 14.9756830008 +31 45 38.269473228 (Optical) [ 0.0156 0.0231 90 ] A 2020yCat.1350....0G Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference FK4 coord. (ep=B1950 eq=1950) : 22 01 01.4509133919 +31 31 05.776390940 [ 0.0156 0.0231 90 ] Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference Gal coord. (ep=J2000) : 085.9568395235808 -18.7788776223963 [ 0.0156 0.0231 90 ] Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode" pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr) pm-dec : mu-dec (expressed in the ICRS system in mas/yr) [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg) quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the proper motion reference Proper motions mas/yr : 0.090 0.037 [0.020 0.030 90] A 2020yCat.1350....0G Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode" value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity) [error] : error of the corresponding value displayed before (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown) quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality) bibcode : bibcode of the value's origin Radial velocity / Redshift / cz : V(km/s) 75754 [150] / z(emission) 0.29470599 [0.0005] / cz 88350.6331 [150]    (Opt) C 2022ApJS..261....2K Syntax of morphological type is : mtype quality bibcode mtype : Hubble morphological class (spirals, ellipticals, etc) quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the morphological type reference Morphological type: E D 2006NewAR..50..748G Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode" filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z (System) : may be AB (default is Vega) flux-value : value of flux or magnitude [error] : error value quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality) MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4]) bibcode : bibcode of the flux reference Fluxes (11) : B 15.85 [~] D 2010A&A...518A..10V V 15.58 [~] D 2010A&A...518A..10V R 14.33 [~] D 2008ApJS..175...97H G 15.325001 [0.004254] C 2020yCat.1350....0G J 14.466 [0.032] C 2003yCat.2246....0C H 13.458 [0.028] C 2003yCat.2246....0C K 12.340 [0.024] C 2003yCat.2246....0C g (AB) 15.6863 [0.0064] B 2017yCat.2349....0C r (AB) 15.6863 [0.0064] B 2017yCat.2349....0C i (AB) 15.6863 [0.0064] B 2017yCat.2349....0C z (AB) 15.6863 [0.0064] B 2017yCat.2349....0C	SIMBAD within arcmin ', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR. The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding. Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).
Some important notes on this object about identifications and objects associations. notes: See also Specfind radio flux densities.

4C 31.63	JVAS J2203+3145	RGB J2203+317	[GGR94] 2201+315
B2 2201+31 A	1Jy 2201+315	RGB J2203.2+3145	[HB93] 2201+315
B2.1 2201+31 A	1Jy 2201+31	RORF 2201+315	[KB2007] J220315.0+314537.7
BWE 2201+3130	LEDA 2820216	RX J2203.2+3145	[MGL2009] BZQ J2203+3145
CGRaBS J2203+3145	2MASS J22031498+3145382	1RXS J220315.6+314535	[MML2015] 5BZQ J2203+3145
CLASS J220314.9799+314538.274	2MASSI J2203149+314538	S3 2201+31	[S77] 371
CRATES J220315+314538	MITG J220315+3145	SWIFT J2203.0+3146	[SRM2005] J220314.97+314538.2
2E 4561	MY 220102.6+313113.3	SWIFT J2203.0+3144	[VV2000] J220314.9+314538
2E 2201.0+3131	MY 220102.6+314545.8	TGSSADR J220314.9+314541	[VV2003] J220314.9+314538
1ES 2201+31.5	NRAO 2201+31	TIC 162035776	[VV2006] J220314.9+314538
3FGL J2203.7+3143	NVSS J220314+314538	TXS 2201+315	[VV2010] J220314.9+314538
GB6 B2201+3131	PBC J2203.3+3148	VRO 31.22.01	[VV96] J220314.9+314538
87GB 220102.8+313058	PCCS2 143 G085.95-18.78	VSOP J2203+3145	[VV98] J220314.9+314538
ICRF J220314.9+314538	PG 2201+315	WB 2201+3130	[VYP98] 2201+315
IERS B2201+315	PSO J330.8123+31.7606	WISE J220314.98+314538.4	[WTW94] 2201+315
IVS B2201+315	QSO J2203+3145	WISE J220314.98+314538.3	Gaia DR3 1899428400235300608
JCMTSE J220314.7+314532	QSO B2201+3131	WMAP J2203+3145	Gaia DR2 1899428400235300608
JCMTSF J220314.7+314532	QSO B2201+315	WN B2201.0+3131	Gaia DR1 1899428395935272320
JVAS B2201+315	RFC J2203+3145	[BDW2002] q2201+3131

References (495 between 1850 and 2024) (Total 495) Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

Collections of Measurements

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : IERS B2201+315

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