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Mahfuz Krueng Asteroid 1825 Klare (1954 QH). 1825 Klare Objectives What and Where? Observation Data...
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Transcript of Mahfuz Krueng Asteroid 1825 Klare (1954 QH). 1825 Klare Objectives What and Where? Observation Data...
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Mahfuz Krueng
Asteroid 1825 Klare (1954 QH)
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1825 Klare• Objectives• What and Where?• Observation• Data Analysis• Previous Research• Further Works
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Objectives• Experience - professional
- stepping “stone” • More Science
• Photometry- wide- contribution
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What and Where?• Diameter: 30 KM• Main-Belt Asteroid• Karl Reinmuth • August 31, 1954 • Heidelberg, Germany• Magnitude: 15.56 (Absolute:11.8)• Orbit
– Period: 1599 days; 4.3 years – Semi-Major Axis: 2.68 AU – Eccentricity: 0.114– Inclination: 4.03 degrees
• Rotation Period: 4.744 hours [Asteroid Lightcurve DataBase (Rev. 2012-Nov-10)]
www.klima-luft.de
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Current Location
MPCLINUX
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Observation• Four Sessions• Aperture: 20” Mirror• Planewave Cassegrain (f/6.8)• CCD Camera: SBIG STL-1001XE• Softwares:
-TheSky6 -CCDSoft
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Observation• 3 minutes exposures
– (Session 1) 58 –April 3, 2013 (Dr. Clark)– (Session 2) 28 – April 7, 2013 (Dr. Clark)– (Session 3) 38 – April 13, 2013
• 2 minutes exposures- (Session 4) 68 – April 22, 2013
• Calibration frames
• Total: 192 images, 8.5 hrs
• Problems-clouds, moon, dawn, dust
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Data Analysis• Softwares:
- CCDsoft- MPO Canopus
- calibration- ligthcurve
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Data Analysis
Auto-match Target
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Data Analysis• Rotation Period = 1/5 of Earth day• More data: 5 hours continuous
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Previous Research
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*1 *2
03/04 03/04
07
*3 *4
4.744+-0.009h0.75+-0.02m
4.7429± 0.0003h, 0.9±0.1mag
0.721 +/- 0.005 mag
Pray, D
Clark, M
Hamanowa, H
Galad, A
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*3
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Further Works• Complete Data• New software• 3-D model
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References1- [Pray, D. (2004) Minor Planet Bul. 31, 34-36.]
2- [Clark, M. (2006) Minor Planet Bul. 33, 53-56.]
3- [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.ht m]4- [Galad, A. (2008) Minor Planet Bul. 35, 128-131.]
JPL Small-Body Database Browser on 1825 Klare