I/320 SPM 4.0 Catalog (Girard+, 2011)
Yale/San Juan Southern Proper Motion Catalog 4 (SPM4)
Girard T.M., van Altena W.F., Zacharias N., Vieira K., Casetti-Dinescu D.I.,
Castillo D., Herrera D., Lee Y.S., Beers T.C., Monet D.G., Lopez C.E.
<Astron. J. 142, 15 (2011)>
=2011AJ....142...15G 2011AJ....142...15G
=2011yCat.1320....0P 2011yCat.1320....0P
ADC_Keywords: Positional data ; Proper motions ; Photometry, photographic ;
Photometry, CCD
Keywords: Astrometry - Catalogs
Description:
The SPM4 Catalog contains absolute proper motions, celestial
coordinates, and B,V photometry for 103,319,647 stars and galaxies
between the south celestial pole and -20 degrees declination. The
catalog is roughly complete to V=17.5. It is based on photographic
and CCD observations taken with the Yale Southern Observatory's
double-astrograph at Cesco Observatory in El Leoncito, Argentina.
The first-epoch survey, taken from 1965 to 1979, was entirely
photographic. The second-epoch survey is approximately 1/3
photographic (taken from 1988 to 1998) and 2/3 CCD-based (taken
from 2004 through 2008).
Full details about the creation of the SPM4.0 catalog can be found
in the paper, and also in the document "spm4_doc.txt" file which
describes the original files, accessible from
http://www.astro.yale.edu/astrom/spm4cat/
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
spm4.sam 165 1000 Sample of SPM4 output (out of 103319647 stars)
spm4_doc.txt 80 671 Documentation of the SPM Catalog
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See also:
http://www.astro.yale.edu/astrom/spm4cat/ : SPM Catalog 4 Home Page
I/289 : UCAC2 Catalogue (Zacharias+ 2004)
I/322 : UCAC4 Catalogue (Zacharias+ 2012)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
Byte-by-byte Description of file: spm4.sam
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Bytes Format Units Label Explanations
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1- 10 I10 --- SPMID Unique identifier (4)
12- 22 F11.7 deg RAdeg Right ascension (J2000, epoch=2000.0)
24- 34 F11.7 deg DEdeg Declination (J2000, epoch=2000.0)
36- 40 F5.1 mas e_RAdeg Error in right ascension at Epoch
42- 46 F5.1 mas e_DEdeg Error in declination at Epoch
48- 55 F8.2 as/yr pmRA Absolute proper motion in RA (*cos(DE))
57- 64 F8.2 as/yr pmDE Absolute proper motion in Declination
66- 71 F6.2 as/yr e_pmRA Error in pmRA at Epoch
73- 78 F6.2 as/yr e_pmDE Error in pmDE at Epoch
80- 86 F7.2 yr Epoch [1965/2007] weighted mean epoch of observation
88- 94 F7.2 yr Ep1 [1965/1982] weighted mean 1st-epoch
96-102 F7.2 yr Ep2 [1987/2007] weighted mean 2nd-epoch (2)
104-105 I2 --- N1 [1/20] Number of 1st-epoch plates used
107-108 I2 --- N2 [0/14] Number of 2nd-epoch plates used
110-110 I1 --- Nc [0/9] Number of 2nd-epoch CCD frames used (3)
112-116 F5.2 mag Bmag ? Johnson B magnitude estimation (1)
118-122 F5.2 mag Vmag ? Johnson V magnitude estimation (1)
124-124 I1 --- ib [1/3] source flag for B mag (1)
126-126 I1 --- iv [1/3] source flag for V mag (1)
128-133 F6.3 mag Jmag ? 2MASS J magnitude
135-140 F6.3 mag Hmag ? 2MASS H magnitude
142-147 F6.3 mag Kmag ? 2MASS Ks magnitude
149-149 I1 --- igal [0/3] galaxy/extended-source flag (5)
151-151 I1 --- icat [1/7] input catalog source flag (6)
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Note (1): ib and iv give the source of the magnitude estimation as:
1 = compiled input catalog
2 = 1st-epoch SPM plates
3 = 2nd-epoch SPM CCD observations
Note (2): Note that CCD frames were assembled into pseudo-plates during
processing. Small differences in epoch between the frames were
compensated for using preliminary proper motions to put all CCD
pseudo-plates at an arbitrary epoch of 2007.0.
Note (3): Number of 2nd-epoch CCD frames used; if larger than 9, it is set
to 9. Note that if N1=0 and N2=0, the 2nd-epoch position used to
calculate the proper motion was adopted from the input source catalog.
Note (4): the leftmost 3 digits indicate the SPM field number (in range
1-670), and the rightmost 7 digits are the running line number from
that field's input master list, an ordered concatenation of the
external catalogs merged to create the SPM4 input list.
Note (5): the flag takes the following values:
0 = there is no indication the object is non-stellar.
1 = the object is a 2MASS extended source (Cat. VII/233)
2 = the object is a LEDA confirmed galaxy (Cat. VII/242)
3 = the object is from the Veron-Cetty & Veron QSO catalog (Cat. VII/248)
Note (6): the input catalog takes the following values:
1 = the object is from Hipparcos (Cat. I/311)
2 = the object is from Tycho-2 (Cat. I/259)
3 = the object is from UCAC2 (Cat. I/289)
4 = the object is from the 2MASS point source catalog (Cat. II/246)
5 = the object is from the 2MASS extended source catalog (Cat. VII/233)
6 = the object is from the LEDA galaxy catalog (Cat. VII/242)
7 = the object is from the Veron-Cetty & Veron QSO catalog (Cat. VII/248)
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Acknowledgements:
Terrence M. Girard (Yale University)
William F. van Altena (Yale University)
History:
* 25-Sep-2024: format migration (CDS)
(End) Francois Ochsenbein [CDS] 03-Mar-2011