I/300 PM2000 Bordeaux Proper Motion catalogue (Ducourant+, 2006)
The PM2000 Bordeaux Proper Motion catalogue (+11°<δ<+18°)
Ducourant C., Le Campion J.F., Rapaport M., Camargo J.I.B., Soubiran C.,
Perie J.P., Teixeira R., Daigne G., Triaud A., Requieme Y., Fresneau A.,
Colin J.
<Astron. Astrophys. 448, 1235 (2006)>
=2006A&A...448.1235D 2006A&A...448.1235D (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Proper motions ; Photometry, UBV
Keywords: astrometry - catalogues - Galaxy : kinematics and dynamics -
reference systems - surveys
Abstract:
We present a proper motion catalogue of 2 670 974 stars, covering the
declination zone +11°<δ<+18°. The catalogue has a
limiting magnitude V=16.2 (Bordeaux CCD meridian circle magnitude) and
is complete down to V=15.4. Depending on magnitude, the positional
precision at mean epoch ranges from 50 to 70mas and the precision of
proper motions varies from 1.5mas/yr to 6mas/yr. Meridian V magnitudes
are provided for all objects together with additional photometry from
the 2MASS catalogue when available (99.5% of objects). Positions and
proper motions are on the ICRS (International Celestial Reference
System). Proper motions are derived from the comparison of the
positional M2000 catalogue (systematic observations of the Bordeaux
Carte du Ciel Zone with the meridian circle, completed in 2000) with
positions derived from the reduction of 512 Carte du Ciel plates of
the Bordeaux zone (scanned at the APM Cambridge), the AC2000.2
catalogue, the USNO-A2.0 catalogue and the unpublished Yellow Sky (YS)
USNO catalogue. Systematic offsets in 2MASS positions and in UCAC2
proper motions were revealed from comparisons with PM2000.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
pm2000.dat 302 2670974 PM2000 catalogue
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
J/A+A/438/769 : Pre-main sequence stars Proper Motion Catalog (Ducourant+ 2005)
Byte-by-byte Description of file: pm2000.dat
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Bytes Format Units Label Explanations
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1 A1 --- n_PM2000 [*] * for objects whose proper motion is
based on a Carte du ciel measurement
2- 8 I7 --- PM2000 [1,2670974]+ PM2000 identificator
10- 11 I2 h RAh Mean Right Ascension J2000 at epoch EpRA
13- 14 I2 min RAm Mean Right Ascension J2000 at epoch EpRA
16- 22 F7.4 s RAs Mean Right Ascension J2000 at epoch EpRA
24 A1 --- DE- Mean Declination J2000 sign at epoch EpDE
25- 26 I2 deg DEd Mean Declination J2000 at epoch EpDE
28- 29 I2 arcmin DEm Mean Declination J2000 at epoch EpDE
31- 36 F6.3 arcsec DEs Mean Declination J2000 at epoch EpDE
37- 44 F8.3 arcsec e_RAs rms uncertainty on RA at epoch EpRA*cos(Dec)
45- 52 F8.3 arcsec e_DEs rms uncertainty on DE at epoch EpDE
53- 61 F9.1 mas/yr pmRA Proper motion in RA (*cos(Dec))
62- 70 F9.1 mas/yr pmDE Proper motion in Dec
71- 78 F8.1 mas/yr e_pmRA rms uncertainty on pmRA (*cos(Dec))
79- 86 F8.1 mas/yr e_pmDE rms uncertainty on pmDE
88- 93 F6.3 mag Vmag Apparent mag in Meridian band (1)
96-101 F6.3 mag e_Vmag rms uncertainty on Vmag
104-110 F7.2 yr EpRA Central epoch for RA
113-119 F7.2 yr EpDE Central epoch for DE
121-123 I3 --- NmRA Nb of meridian observations in RA solution
125-127 I3 --- NmDE Nb of meridian observations in DE solution
130-131 I2 --- NYRA Nb of YS observations used in RA solution
133-134 I2 --- NYDE Nb of YS observations used in DE solution
137-138 I2 --- NURA Nb of USNO-A2.0 obs. in RA solution
140-141 I2 --- NUDE Nb of USNO-A2.0 obs. in DE solution
144-145 I2 --- NCCRA Nb of Carte du Ciel obs. in RA solution
147-148 I2 --- NCCDE Nb of Carte du Ciel obs. in DE solution
151-152 I2 --- NACRA Nb of AC2000.2 obs.in RA solution
154-155 I2 --- NACDE Nb of AC2000.2 obs. in DE solution
163-169 F7.2 yr Ep1 Most ancien epoch in the data
171-176 F6.3 mag V-Ks ?=99.999 V-Ks colour index (from 2MASS) (2)
178-184 F7.3 --- gRA Goodness of fit in RA (3)
187-192 F6.3 --- gDE Goodness of fit in DE (3)
195-211 A17 --- 2MASS 2MASS Identificator
214-219 F6.3 mag Jmag ? 2MASS J apparent magnitude
221-226 F6.3 mag e_Jmag ? 2MASS J total magnitude uncertainty
230-235 F6.3 mag Hmag ? 2MASS H apparent magnitude
237-242 F6.3 mag e_Hmag ? 2MASS H total magnitude uncertainty
246-251 F6.3 mag Ksmag ? 2MASS Ks apparent magnitude
253-258 F6.3 mag e_Ksmag ? 2MASS Ks total magnitude uncertainty
261-264 I4 --- TYC1 ? TYC1 Identificator for Tycho stars
266-270 I5 --- TYC2 ? TYC2 Identificator for Tycho stars
272 I1 --- TYC3 ? TYC3 Identificator for Tycho stars
275-280 F6.3 mag Btmag ? Tycho-2 Bt apparent magnitude
281-286 F6.3 mag e_Btmag ? Tycho-2 standard error on Btmag
288-293 F6.3 mag Vtmag ? Tycho-2 Vt apparent magnitude
294-299 F6.3 mag e_Vtmag ? Tycho-2 standard error on Vtmag
302 A1 --- f_TYC1 [T] Flag for TYCHO1 stars
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Note (1): The bandpass is defined by two combined filters (GC495 and BG38) as
the wavelength range 520-680nm; This is different from Tycho Vt.
Note (2): V-Ks = 99.999 when no K measurement was available in 2MASS.
Note (3): This goodness of fit is the ratio of the scatter-based and the
model-based error.
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Acknowledgements: Christine Ducourant, ducourant(at)obs.u-bordeaux1.fr
(End) Patricia Vannier [CDS] 10-Nov-2005