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J/AJ/135/1334    Speckle interferometry at the USNO station    (Hartkopf+, 2008)

Speckle interferometry at the USNO flagstaff station: observations obtained in 2003-2004 and 17 new orbits. Hartkopf W.I., Mason B.D., Rafferty T.J. <Astron. J., 135, 1334-1342 (2008)> =2008AJ....135.1334H
ADC_Keywords: Binaries, orbits ; Interferometry Keywords: binaries: general - binaries: visual - techniques: interferometric Abstract: Results are presented for 353 speckle interferometric observations of double stars, obtained in 2003 and 2004 at the USNO Flagstaff Station using the 1.55m Kaj Strand Astrometric Reflector. Separations range from 0.12" to 7.42", with a median of 0.42". These two observing runs concentrated on systems in need of improved orbital elements, and new solutions have been determined for 17 systems as a result. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 53 195 Speckle interferometric measurements of double stars without orbits (195 means) table2.dat 93 180 Speckle interferometric measurements and residuals of systems with orbits (158 means) table3.dat 111 17 New orbital elements refs.dat 78 105 References for table2
See also: B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2010) J/AJ/106/637 : ICCD speckle observations. IX (Mason+, 1993) J/AJ/106/1639 : Speckle observations of binary stars (McAlister+ 1993) J/AJ/111/370 : Orbits of 37 close visual systems (Hartkopf+ 1996) J/A+AS/134/545 : Double star measurements 1995-1997 (Aristidi+ 1999) J/AJ/119/3084 : ICCD speckle obs. of binary stars. XXIII. (Hartkopf+, 2000) J/A+A/367/865 : Speckle observations of binary systems (Prieur+ 2001) J/AJ/127/1181 : Binary speckle measurements at Calar Alto (Docobo+, 2004) J/other/AstBu/62.339 : Speckle interferometry of nearby multiples (Balega+, 2007) http://ad.usno.navy.mil/wds/orb6.html : Sixth Catalog of Orbits of Visual Binary Stars homepage http://ad.usno.navy.mil/wds/int4.html : Fourth Catalog of Interferometric Measurements of Binary Stars homepage Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 10 A10 --- WDS WDS designation (HHMMm+DDMM, 2000) 12- 19 A8 --- Disc Discoverer designation 21- 25 A5 --- Comp Observed components of multiple system 27- 35 F9.4 yr Epoch Epoch of observation (Besselian year) 37- 41 F5.1 deg PA [-5/360] Position angle 42 A1 --- u_PA [:] Uncertainty flag for PA 44- 48 F5.3 arcsec Sep Separation 49 A1 --- u_Sep [:] Uncertainty flag for Sep 51 I1 --- N Number of observations contained in the mean 53 A1 --- Note Object notes (1)
Note (1): Notes as follows: C = Measure confirming a new binary star L = Linear elements determined; see Rectilinear Elements Catalog: http://ad.usno.navy.mil/wds/lin1.html. O-C residuals for this pair are -0.2° and 0.089".
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 10 A10 --- WDS WDS designation (HHMMm+DDMM, 2000) 12- 19 A8 --- Disc Discoverer designation 21- 24 A4 --- Comp Observed components of multiple system 26- 34 F9.4 yr Epoch ? Epoch of observation (Besselian year) 36- 40 F5.1 deg PA ? Position angle 42- 46 F5.3 arcsec Sep ? Separation 48 I1 --- N ? Number of observations contained in the mean 50- 54 F5.1 deg (O-C)PA O-C position angle residual 56- 61 F6.3 arcsec (O-C)Sep O-C separation residual 63- 91 A29 --- Ref Observation reference; see refs.dat file 93 A1 --- n_Ref Note on the system(1)
Note (1): Flag as follows: * = System used in characterizing errors. 1 = Position angle of this measure flipped by 180° for this orbit. 2 = This is the nearby pair GJ 234. 3 = This is the nearby pair G 250-209. 4 = This is the nearby pair GJ 473.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 10 A10 --- WDS WDS designation (HHMMm+DDMM, 2000) 12- 13 A2 --- Fig Figure number 15- 24 A10 --- Disc Discover name 26- 31 F6.2 yr Per Period 33- 38 F6.2 yr e_Per Period uncertainty 40- 44 F5.3 arcsec a Semi-major axis 46- 50 F5.3 arcsec e_a Semi-major axis uncertainty 52- 56 F5.1 deg i Inclination 58- 61 F4.1 deg e_i Inclination uncertainty 63- 67 F5.1 deg Omega Longitude of node, equinox 2000 69- 72 F4.1 deg e_Omega Ω uncertainty 74- 80 F7.2 yr T0 Epoch of periastron passage, in fractional Besselian year 82- 87 F6.2 yr e_T0 T0 uncertainty 89- 93 F5.3 --- e Eccentricity 95- 99 F5.3 --- e_e Eccentricity uncertainty 101-105 F5.1 deg omega Longitude of periastron 107-111 F5.1 deg e_omega ω uncertainty
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 29 A29 --- Ref Reference code 31- 49 A19 --- BibCode Bibcode 51- 78 A28 --- Com Comment
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 09-Aug-2010
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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