J/other/PSS/53.925 CCD photometry of 23 minor planets (Szekely+, 2005)
CCD photometry of 23 minor planets.
Szekely P., Kiss L.L., Szabo Gy.M., Sarneczky K., Csak B., Varadi M.,
Meszaros Sz.
<Planetary and Space Science, 53, 925-936 (2005)>
=2005P&SS...53..925S 2005P&SS...53..925S
ADC_Keywords: Minor planets ; Photometry, CCD
Keywords: Minor planets, asteroids - techniques: photometric
Abstract:
We present CCD photometric observations of 23 main-belt asteroids, of
which 8 have never been observed before thus the data of these objects
are the first in the literature. The majority showed well detectable
light variations, exceeding 0.1m. We have determined synodic periods
for 756 Lilliana (9.36),1270 Datura (3.4), 1400 Tirela (13.36), 1503
Kuopio (9.98), 3682 Welther (3.59), 7505 Furushu (4.14) and 11436 1969
QR (2.6), while uncertain period estimates were possible for 469
Argentina (12.3), 546 Herodias (10.4) and 1026 Ingrid (5.3). The shape
of the lightcurves of 3682 Welther changed on a short time-scale and
showed dimmings that might be attributed to eclipses in a binary
system. For the remaining objects, only lower limits of the periods
and amplitudes were concluded.
Description:
We carried out CCD observations on 39 nights from September, 1999 to
February, 2003. Standard Johnson R filtered and unfiltered data were
obtained, using the 60/90/180cm Schmidt-telescope of the Konkoly
Observatory.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
objects.dat 63 23 Asteroid list
lc/* . 18 Individual light curves
cl/* . 12 Individual composite light curves
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Byte-by-byte Description of file: objects.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- Ast Asteroid number
7- 20 A14 --- Name Asteroid name
22 A1 --- FiltLC [RX] Filter of LC light curve
24- 33 A10 --- LC Name of the file containing the light curve
35 A1 --- FiltCL [RX] Filter of CL composite light curve
37- 48 A12 --- CL Name of the file containing the
composite light curve
50 A1 --- FiltCL2 [RX] Filter of CL2 composite light curve
52- 63 A12 --- CL2 Name of the file containing the second
composite light curve
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Byte-by-byte Description of file: lc/*
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Julian Date
14 A1 --- Filt [RX] Johnson R filtered (R) or unfiltered (X)
16- 21 F6.3 mag Dmag Differential magnitude
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Byte-by-byte Description of file: cl/*
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Bytes Format Units Label Explanations
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1- 11 F11.9 --- Phase Rotational phase
13 A1 --- Filt [RX] Johnson R filtered (R) or unfiltered (X)
15- 20 F6.3 mag Dmag Differential magnitude
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Acknowledgements: Peter Szekely, pierre(at)physx.u-szeged.hu
(End) Peter Szekely [Szeged Univ., Hungary], Patricia Vannier [CDS] 13-May-2005