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J/A+A/438/377    Kyiv Meridian Axial Circle Catalogue, KMAC1  (Lazorenko+, 2005)

The Kyiv Meridian Axial Circle Catalogue of stars in fields with extragalactic radio sources. Lazorenko P., Babenko Yu, Karbovsky V., Buromsky M., Denisjuk O., Kasjan S. <Astron. Astrophys. 438, 377 (2005)> =2005A&A...438..377L
ADC_Keywords: Positional data; Proper motions; Photometry, CCD; Magnitudes Keywords: astrometry - reference systems - catalogs Abstract: We present results of astrometric observations of faint V<17mag stars in sky strip areas with ICRF objects obtained with the Kyiv meridian axial circle (D=180mm) equipped with a 1040x1160 CCD micrometer. Observations were carried out in a declination zone of 0+30 degrees. The work resulted in a compilation of a catalogue KMAC1 that presents an extension of the ICRF to faint stars in optical domain. The catalogue was obtained in the two versions: with reduction to the space catalogue Tycho2, I/259, (the version KMAC1-T, 159 ICRF fields, 104794 stars) and with reduction to the modern CCD catalogues CMC13 and UCAC2 (I/289) which are given also in the ICRF system (the version KMAC1-CU, 192 ICRF fields, 115032 stars). Due to a large number of CMC13 and UCAC2 stars used as reference, the version KMAC1-CU is of slightly better accuracy, though it may inherit local systematic errors of reference catalogues. Description: The KMAC1-T and KMAC1-CU catalogues contain positions (J2000.0), proper motions and V magnitudes in sky strip ares of about 46'x24' (RAxDE) size centered at the ICRF radio sources. Positions are given at mean epoch of observations. The limiting magnitude is V=17mag. The estimated accuracies are 50-90mag in positions, 0.08mag in photometry and 5-6mas/yr in proper motions for V<15mag stars. Proper motions were computed using the USNO-A2.0 (I/252) catalogue positions as the first epoch. The catalogue contains also B, R, r' and J photometry copied from other sources (USNO-B1.0, I/284, CMC13 and 2MASS, II/246). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file list.dat 65 192 List of sky strips included in KMAC1-T and KMAC1-CU kmac1cu.dat 150 115032 The catalogue KMAC1-T (159 fields) kmac1t.dat 150 104796 The catalogue KMAC1-CU (192 fields)
See also: I/251 : VLBI International Celestial Reference Frame (ICRF) (Ma+, 1997) I/252 : The USNO-A2.0 Catalogue (Monet+ 1998) I/284 : The USNO-B1.0 Catalog (Monet+ 2003) II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) I/259 : The Tycho-2 Catalogue (Hog+ 2000) I/289 : UCAC2 Catalogue (Zacharias+ 2004) I/282 : Carlsberg Meridian Tel. CCD Drift Scan Survey, CMC12 (Evans+, 2002) : CMC13 Home Page Byte-by-byte Description of file: list.dat
Bytes Format Units Label Explanations
1- 15 A15 --- IAU IAU designations of ICRF radio sources located at centres of sky strips 17- 21 I5 --- NCU Star number in each sky strip contained in the KMAC1-CU catalogue 23- 27 I5 --- NT ? Star number in each sky strip contained in the KMAC1-T catalogue (1)
Note (1): NT may be smaller than NCU due to truncation of outer edges of some sky fields which was carried out in the KMAC1-T.
Byte-by-byte Description of file: kmac1cu.dat kmac1t.dat
Bytes Format Units Label Explanations
1- 6 I6 --- Seq Object (star) sequential number (1) 8- 22 A15 --- IAU IAU designation of the radio source (2) 24- 34 F11.7 deg RAdeg Right Ascension at Eq.=J2000 (3) 36- 45 F10.7 deg DEdeg Declination at Eq.=J2000 (3) 47- 52 F6.3 mag Vmag Johnson V band magnitude 54- 55 I2 --- o_RAdeg Number of detections in RA (4) 57- 58 I2 --- o_DEdeg Number of detections in DE (4) 60- 61 I2 --- o_Vmag Number of detections in V 63- 66 F4.2 arcsec e_RAdeg Internal mean error on RA 68- 71 F4.2 arcsec e_DEdeg Internal mean error on DE 73- 76 F4.2 mag e_Vmag Internal mean error on V 78- 81 I4 mas/yr pmRA ?=9999 proper motion on RA (5) 83- 86 I4 mas/yr pmDE ?=9999 proper motion on DE (5) 88- 91 F4.2 yr EpRA-2000 Epoch of observations on RA minus 2000 93- 96 F4.2 yr EpDE-2000 Epoch of observations on DE minus 2000 98-101 F4.2 yr EpV-2000 Epoch of observations on V minus 2000 103 I1 --- Qual [0/1] Image quality index: 0=ok, 1=non-standard image processing (6) 105-107 F3.1 pix SizeDE Image size for extended objects in DE (7) 109-111 F3.1 pix SizeRA Image size for extended objects in RA (7) 113-117 F5.2 mag Bmag ?=0.00 blue B magnitude from USNO-B1.0 119-123 F5.2 mag Rmag ?=0.00 red R magnitude from USNO-B1.0 125-130 F6.3 mag r'mag ?=0.000 red r' magnitude from CMC13 132-137 F6.3 mag Jmag ?=0.000 infrared J magnitude from 2MASS 139-150 A12 --- USNOB1 USNO-B1.0 (Cat I/284) object designation (99999999999 = ?)
Note (1): All the KMAC1 objects are ordered by Right Ascension. Note (2): The designation refers to the central ICRF object of the sky area. Note (3): Positions are is given at mean epoch of observations and Eq.=J2000.0. Note (4): Unequal number of detections in RA and DE (NRA and NDE) means that a rejection of bad measurements was applied. It may indicate certain problems with image quality not marked by the QUAL. When a very high accuracy of positions is required, please do not use these stars or at least the coordinate which refers to the rejected measurement (e.g. DE, if NDE<NRA). Note (5): Computed using the USNO-A2.0 first epoch positions. Note (6): Qual=1 may indicate indicate centroiding problems of various origin (e.g. binary, unresolved or oversaturated star). Please do not use these stars when a very high accuracy of positions is required. Note (7): The Gaussian image size parameter is given when SizeDE or SizeRA exceed 2pix (1pix=1.394arcsec); FWHM=2.36*SizeDE in DE and FWHM=2.36*SizeRA in RA
Acknowledgements: Yuri Babenko, babenko(at) Peter Lazorenko, laz(at) References: Telnyuk-Adamchuk et al., 2002A&A...386.1153T, Observing programs of the Kyiv meridian axial circle equipped with a CCD micrometer.
(End) Patricia Vannier [CDS] 14-Mar-2005
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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