I/335 LUT Survey Catalogue Data Release 1 (Meng+, 2016)
NUV Star Catalogue of Lunar-based Ultraviolet Telescope Survey. First Release.
Meng X.-M., Han X.-H., Wei J.-Y., Wang J., Cao L., Qiu Y.-L., Wu C.,
Deng J.-S., Cai H.-B., Xin L.-P.
<Res. Astron Astrophys., 16, 168 (2016)>
=2016RAA....16..168M 2016RAA....16..168M
=2016yCat.1335....0M 2016yCat.1335....0M
ADC_Keywords: Surveys ; Positional data ; Ultraviolet ; Stars, standard
Keywords: astronomical databases: surveys - astronomical databases: catalogs -
techniques: image processing - techniques: photometric -
ultraviolet: stars
Abstract:
We present an near-ultraviolet star catalogue extracted from the
Lunar-based Ultraviolet Telescope (LUT) survey program. LUT's
observable sky area is a circular belt around the Moon's north pole,
and the survey program covers a preferred area for about 2400 square
degrees which includes a region of the Galactic plane. All the sources
have signal-to-noise ratio larger than 5, and the corresponding
magnitude limit is typically 14.4mag, which can be deeper as ∼16 mag
if the stray light contamination is in the lowest level. A total
number of 86,467 stars are recorded in the catalogue.
Description:
In the first release version, the catalogue provides high confidence
sources which have been cross-identified with Tycho-2 catalogue. The
catalogue provides equatorial coordinate positions, magnitudes
measured by aperture photometry and PSF photometry, aperture
apertures, and the corresponding Tycho-2 records of the stars detected
by LUT survey program. No aperture correction or extinction correction
was applied on these measurements. The catalogue is in IPAC table
format.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 138 86467 The LUT Survey Catalogue Data Release 1
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See also:
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [LUT]
4- 19 A16 --- LUTID LUT object identifier (JHHMMSS.s+DDMMSS)
21- 29 F9.5 deg RAdeg Right ascension in LUT records, ICRS,
epoch=J2000 (RA_LUT)
31- 38 F8.5 deg DEdeg Declination in LUT records, ICRS,
epoch=J2000 (DEC_LUT)
40- 43 F4.2 pix FWHM Full width at half maximum of Mofat profile of
the star
45- 48 F4.2 pix rap Aperture radius used for aperture photometry (1)
50- 55 F6.3 mag LUTmag Magnitude at LUT band measured with rap
aperture radius
57- 61 F5.3 mag e_LUTmag Uncertainty of MAG_LUT
63- 68 F6.3 mag LUTPSF ?=99.99 PSF Magnitude of LUT data
70- 75 F6.3 mag e_LUTPSF ?=99.99 Uncertainty of PSF_LUT
77- 89 F13.5 d JD Julian date of LUT's observation
91- 94 I4 --- TYC1 The Tycho-2 identifier, TYC1
95- 99 I5 --- TYC2 The Tycho-2 identifier, TYC2
100 I1 --- TYC3 The Tycho-2 identifier, TYC3
102-110 F9.5 deg RATdeg Right ascension in Tycho-2 catalogue, ICRS,
epoch=J2000
112-119 F8.5 deg DETdeg Declination in Tycho-2 catalogue, ICRS,
epoch=J2000
121-126 F6.3 mag BTmag Tycho-2 B_T magnitude
128-133 F6.3 mag VTmag Tycho-2 V_T magnitude
135-138 F4.2 arcsec Sep Separation distance between LUT and Tycho-2
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Note (1): the aperture radius is two times of the typical FWHM (FWHM_med) that
has been determined for a group of LUT images.
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Acknowledgements:
Xian-Min Meng, mengxm(at)nao.cas.cn
(End) Patricia Vannier [CDS] 16-Jun-2016