J/AJ/142/56 Speckle interferometry at the USNO station (Hartkopf+, 2011)
Speckle interferometry at the USNO Flagstaff Station: observations obtained in
2008 and nine new orbits.
Hartkopf W.I., Mason B.D.
<Astron. J., 142, 56 (2011)>
=2011AJ....142...56H 2011AJ....142...56H
ADC_Keywords: Binaries, orbits ; Interferometry
Keywords: binaries: general - binaries: visual - techniques: interferometric
Abstract:
Results are presented for 299 speckle interferometric observations of
double stars, obtained in 2008 at the USNO Flagstaff Station using the
1.55m Kaj Strand Astrometric Reflector. Separations range from
0.15" to 9.88", with a median of 2.22". This observing run
concentrated on neglected systems, as well as systems in need of
improved orbital elements; new orbital solutions have been determined
for nine systems as a result.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 52 259 Speckle interferometric measurements of double
stars without orbits
table2.dat 115 42 Speckle interferometric measurements and residuals
of systems with orbits or rectilinear fits
--------------------------------------------------------------------------------
See also:
J/AJ/135/1334 : Speckle interferometry at the USNO station (Hartkopf+, 2008)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS WDS designation (HHMMm+DDMM)
12- 19 A8 --- Disc Discoverer name and number
21- 25 A5 --- Comp Components when more than 2
29- 37 F9.4 yr Ep Epoch
39- 43 F5.1 deg theta Position angle θ
44 A1 --- u_theta Lower quality flag
46- 50 F5.3 arcsec rho Separation ρ
51 A1 --- u_rho Lower quality flag
53 I1 --- N Number of observations
55 I1 --- Note [1/3]? Note (1)
--------------------------------------------------------------------------------
Note (1): Notes as follows:
4 = Pair used for calibration; see text
5 = Confirming observation
6 = New pair; see text
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS WDS designation (HHMMm+DDMM)
12- 19 A8 --- Disc Discoverer name
21- 25 A5 --- Comp Components when more than 2
28- 36 F9.4 yr Ep Epoch
38- 42 F5.1 deg theta Position angle θ
44- 48 F5.3 arcsec rho Separation ρ
50 I1 --- N Number of observations
52- 55 F4.1 deg (O-C)t O-C value for θ
57- 62 F6.3 deg (O-C)r O-C value for ρ
64-114 A51 --- Ref Reference
116 I1 --- Note [1]? 1 = Pair used for calibration
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 28-Sep-2012