PPMXL Catalog Cone Search

Metadata

Identifier

ivo://xaovo/ppmxl/q/cone

News

2011-06-08 (MD): Silent update: 6169 objects copied from PPMX were affected by a PPMX bug that computed Ru magnitudes although at least one 2MASS magnitude was NULL. This resulted in large negative r1mags for these objects in PPMXL. The erroneous magnitudes have been set to NULL.

Description

PPMXL is a catalog of positions, proper motions, 2MASS- and optical photometry of 900 million stars and galaxies, aiming to be complete down to about V=20 full-sky. It is the result of a re-reduction of USNO-B1 together with 2MASS to the ICRS as represented by PPMX.

Keywords

Reference systems
Astrometry
Catalogs
Stars: Proper Motions

Creator

Röser, S.; Demleitner, M.; Schilbach, E.

Created

2009-10-15T14:01:23Z

Source

2010AJ....139.2440R

Reference URL

Service info

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	b1mag -- B mag from USNO-B, first epoch
	b2mag -- B mag from USNO-B, second epoch
	e_Hmag -- H total magnitude uncertainty
	e_Jmag -- J total magnitude uncertainty
	e_Kmag -- K_s total magnitude uncertainty
	epDE -- Mean Epoch (Dec)
	epRA -- Mean Epoch (RA)
	flags -- Flags
	imag -- I mag from USNO-B
	magSurveys -- Surveys the USNO-B magnitudes are taken from
	nobs -- Number of observations used
	r1mag -- R mag from USNO-B, first epoch
	r2mag -- R mag from USNO-B, second epoch

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