J/AJ/162/53 Speckle interferometry at the USNO. XXIV. (Mason+, 2021)
Speckle interferometry at the U.S. Naval Observatory. XXIV.
Mason B.D., Williams S.J., Matson R.A., Josties J.D., Eakens P.D.,
Justice M., Kilian C.M., Warner R.
<Astron. J., 162, 53-53 (2021)>
=2021AJ....162...53M 2021AJ....162...53M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple; Interferometry; Positional data
Keywords: Binary stars; Interferometric binary stars
Abstract:
The results of 3611 intensified CCD observations of double stars, made
with the 26inch refractor of the U.S. Naval Observatory, are
presented. Each observation of a system represents a combination of
over 2000 short-exposure images. These observations are averaged into
1857 mean relative positions and range in separation from 0.341" to
128.644", with a median separation of 6.533". Two systems have their
orbits improved and one has its first determination. This is the 24th
in this series of papers and covers the period 2018 May 24 through
2019 October 28.
Description:
This is the 24th in a series of papers from the U.S. Naval
Observatory's (USNO) speckle interferometry program, presenting
results of observations obtained at the USNO 26inch telescope in
Washington, DC (see Paper XXIII). From 2018 May 24 through 2019
October 28, the 26 inch telescope was used on 86 of 251 (34%)
scheduled nights.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 63 1531 ICCD measurements of double stars
table4.dat 80 134 ICCD measurements of double stars with orbit
residuals
refs.dat 98 48 References used for table 4
--------------------------------------------------------------------------------
See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2020)
I/350 : Gaia EDR3 (Gaia Collaboration, 2020)
J/AJ/140/480 : Speckle interferometry at USNO. XV. (Mason+, 2010)
J/AJ/140/1623 : PHASES diff. astrometry data archive. II. (Muterspaugh+, 2010)
J/AJ/140/1657 : PHASES diff. astrometry data archive. V. (Muterspaugh+, 2010)
J/AJ/141/157 : Speckle interferometry at USNO. XVI. (Mason+, 2011)
J/AJ/142/46 : Speckle interferometry at USNO. XVII. (Mason+, 2011)
J/AJ/142/56 : Speckle interferometry at the USNO station (Hartkopf+, 2011)
J/AJ/143/124 : Speckle interferometry at the USNO. XVIII. (Mason+, 2012)
J/AJ/144/56 : Speckle interferometry at SOAR in 2012 (Tokovinin+, 2012)
J/AJ/146/56 : Speckle interferometry at the USNO. XIX. (Mason+, 2013)
J/AJ/147/123 : Speckle interferometry with SOAR 2012-2013 (Tokovinin+, 2014)
J/AJ/150/50 : Speckle interferometry at SOAR in 2014 (Tokovinin+, 2015)
J/AJ/150/136 : Speckle interferometry at USNO. XX. (Hartkopf+, 2015)
J/A+A/597/A47 : CARMENES input catalogue M dwarfs II (Cortes-Contreras+ 2017)
J/AJ/153/20 : Speckle interferometry at USNO. XXI. (Mason+, 2017)
J/AJ/154/183 : Speckle interferometry at the USNO. XXII. (Mason+, 2017)
J/AJ/154/200 : The nearby white dwarf/red dwarf pair 40 Eri BC (Mason+, 2017)
J/AJ/156/240 : Speckle interferometry at the USNO. XXIII. (Mason+, 2018)
J/MNRAS/473/4497 : Binary stars astrom. & photom. measurements (Roberts+, 2018)
J/AJ/160/284 : 2590 binary stars in Hipparcos and Gaia DR2 (Makarov, 2020)
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS WDS designation (HHMMm+DDMM, J2000)
12- 20 A9 --- Disco Discoverer designation
22- 26 A5 --- Comp Measured components of multiple system
28- 35 F8.3 yr Epoch [2004/2020] Epoch of observation
37- 41 F5.1 deg PA [0.3/360] Position angle
43- 45 F3.1 deg e_PA [0/3] Uncertainty in PA
47- 53 F7.3 arcsec Sep [0.34/129] Separation
55- 59 F5.3 arcsec e_Sep [0/9] Uncertainty in Sep
61- 61 I1 --- Nobs [1/7] Number of observations contained in the mean
63- 63 A1 --- Note Object notes (1)
--------------------------------------------------------------------------------
Note (1): Notes as follows:
A = Measure missed in prior publication in this series (4 occurrences)
B = Two element period estimated in Makarov+, 2020, J/AJ/160/284
(7 occurrences)
C = Confirming observation (1 occurrence)
V = Measure made by vector addition of other measured pairs in this
multiple system (5 occurrences)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS WDS designation (HHMMm+DDMM, J2000)
12- 20 A9 --- Disco Discoverer designation
22- 26 A5 --- Comp Measured components of multiple system
28- 35 F8.3 yr Epoch [2016/2020] Epoch of observation
37- 41 F5.1 deg PA [1.5/358]? Position angle
43- 45 F3.1 deg e_PA [0/2]? Uncertainty in PA
47- 52 F6.3 arcsec Sep [0.36/30]? Separation
54- 58 F5.3 arcsec e_Sep [0/0.34]? Uncertainty in Sep
60- 60 I1 --- Nobs [1/6]? Number of observations contained in mean
62- 66 F5.1 deg OC-PA [-31/8.2] Position angle (O-C) residual
68- 73 F6.3 arcsec OC-Sep[-0.34/0.29] Separation (O-C) residual
75- 78 A4 --- Ref Reference
80 A1 --- Note Object note(s) (1)
--------------------------------------------------------------------------------
Note (1): Notes as follows:
A = Measure missed in prior publication in this series (19 occurrences)
B = Two solutions in Kiselev+, 2009ARep...53..126K 2009ARep...53..126K. The one whose residuals
are given here (Ω=58deg) is definitely better. (1 occurrence)
C = Two solutions in Romanenko & Kiselev, 2014ARep...58...30R 2014ARep...58...30R. The one whose
residuals are given here (Ω=347deg) is definitely better.
(1 occurrence)
E = New orbit solution. See Table 5, 6, Figure 2 and Section 4.2.
(4 occurrences)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- Ref Reference code
6- 26 A21 --- Autor Main autor of the reference
28- 46 A19 --- BIB BIBcode
48- 63 A16 --- Cat. Catalog in Vizier
65- 98 A34 --- Note Additional note
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Douglass et al., Paper I 1997ApJS..111..289D 1997ApJS..111..289D
Germain et al., Paper II 1999AJ....117.1905G 1999AJ....117.1905G, Cat. J/AJ/117/1905
Germain et al., Paper III 1999AJ....117.2511G 1999AJ....117.2511G, Cat. J/AJ/117/2511
Douglass et al., Paper IV 1999AJ....118.1395D 1999AJ....118.1395D, Cat. J/AJ/118/1395
Douglass et al., Paper V 2000AJ....119.3071D 2000AJ....119.3071D, Cat. J/AJ/119/3071
Mason et al., Paper VI 2000AJ....120.1120M 2000AJ....120.1120M, Cat. J/AJ/120/1120
Mason et al., Paper VII 2001AJ....122.1586M 2001AJ....122.1586M, Cat. J/AJ/122/1586
Mason et al., Paper VIII 2002AJ....124.2254M 2002AJ....124.2254M, Cat. J/AJ/124/2254
Mason et al., Paper IX 2004AJ....127..539M 2004AJ....127..539M, Cat. J/AJ/127/539
Mason et al., Paper X 2004AJ....128.3012M 2004AJ....128.3012M, Cat. J/AJ/128/3012
Mason et al., Paper XI 2006AJ....131.2687M 2006AJ....131.2687M, Cat. J/AJ/131/2687
Mason et al., Paper XII 2006AJ....132.2219M 2006AJ....132.2219M, Cat. J/AJ/132/2219
Mason et al., Paper XIII 2007AJ....134.1671M 2007AJ....134.1671M, Cat. J/AJ/134/1671
Mason et al. Paper XIV 2008AJ....136.2223M 2008AJ....136.2223M, Cat. J/AJ/136/2223
Mason et al., Paper XV 2010AJ....140..480M 2010AJ....140..480M, Cat. J/AJ/140/480
Mason et al., Paper XVI 2011AJ....141..157M 2011AJ....141..157M, Cat. J/AJ/141/157
Mason et al., Paper XVII 2011AJ....142...46M 2011AJ....142...46M, Cat. J/AJ/142/46
Mason et al., Paper XVIII 2012AJ....143..124M 2012AJ....143..124M, Cat. J/AJ/143/124
Mason et al., Paper XIX 2013AJ....146...56M 2013AJ....146...56M, Cat. J/AJ/146/56
Hartkopf et al., Paper XX 2015AJ....150..136H 2015AJ....150..136H, Cat. J/AJ/150/136
Mason et al., Paper XXI 2017AJ....153...20M 2017AJ....153...20M, Cat. J/AJ/153/20
Mason et al., Paper XXII 2017AJ....154..183M 2017AJ....154..183M, Cat. J/AJ/154/183
Mason et al., Paper XXIII 2018AJ....156..240M 2018AJ....156..240M, Cat. J/AJ/156/240
(End) Prepared by [AAS], Coralie Fix [CDS], 16-Nov-2021