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LIGHTCURVE ANALYSIS OF THE NEAR-EARTH ASTEROID (6053) 1993 BW3. 近地小行星(6053)1993 bw3的光曲线分析。
The Minor planet bulletin Pub Date : 2015-10-01
Brian D Warner
{"title":"LIGHTCURVE ANALYSIS OF THE NEAR-EARTH ASTEROID (6053) 1993 BW3.","authors":"Brian D Warner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>CCD photometric observations of the near-Earth asteroid (6053) 1993 BW3 were made at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) in 2015 January and March. Analysis of the individual and combined data sets produced a period on the order of 2.8 hours. This differs significantly from the results of Pravec et al. (1997; <i>P</i> = 2.573 h) and from shape models by Durech (2002) and Kaasalainen (2002). While this discordance is not resolved, the 2.573 h value has the greatest amount of data supporting it, and for now, remains the favored period solution.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 4","pages":"254-256"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244092/pdf/nihms-1570078.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37976993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
LIGHTCURVE PHOTOMETRY OPPORTUNITIES: 2015 OCTOBER-DECEMBER. 光曲线测光机会:2015年10 - 12月。
The Minor planet bulletin Pub Date : 2015-10-01
Brian D Warner, Alan W Harris, Josef Ďurech, Lance A M Benner
{"title":"LIGHTCURVE PHOTOMETRY OPPORTUNITIES: 2015 OCTOBER-DECEMBER.","authors":"Brian D Warner,&nbsp;Alan W Harris,&nbsp;Josef Ďurech,&nbsp;Lance A M Benner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We present lists of asteroid photometry opportunities for objects reaching a favorable apparition and have no or poorly-defined lightcurve parameters. Additional data on these objects will help with shape and spin axis modeling via lightcurve inversion. We also include lists of objects that will be the target of radar observations. Lightcurves for these objects can help constrain pole solutions and/or remove rotation period ambiguities that might not come from using radar data alone.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 4","pages":"286-290"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244019/pdf/nihms-1570081.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37976995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
LIGHTCURVE PHOTOMETRY OPPORTUNITIES: 2015 JULY-SEPTEMBER. Lightcurve测光机会:2015年7 - 9月。
The Minor planet bulletin Pub Date : 2015-07-01
Brian D Warner, Alan W Harris, Josef Ďurech, Lance A M Benner
{"title":"LIGHTCURVE PHOTOMETRY OPPORTUNITIES: 2015 JULY-SEPTEMBER.","authors":"Brian D Warner,&nbsp;Alan W Harris,&nbsp;Josef Ďurech,&nbsp;Lance A M Benner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We present lists of asteroid photometry opportunities for objects reaching a favorable apparition and have no or poorly-defined lightcurve parameters. Additional data on these objects will help with shape and spin axis modeling via lightcurve inversion. We also include lists of objects that will be the target of radar observations. Lightcurves for these objects can help constrain pole solutions and/or remove rotation period ambiguities that might not come from using radar data alone.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 3","pages":"228-232"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7296836/pdf/nihms-1570077.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38058420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
LIGHTCURVE ANALYSIS OF THE NEAR-EARTH ASTEROID 2015 CN13. 近地小行星2015 cn13的光曲线分析。
The Minor planet bulletin Pub Date : 2015-07-01
Brian D Warner, Julian Oey
{"title":"LIGHTCURVE ANALYSIS OF THE NEAR-EARTH ASTEROID 2015 CN13.","authors":"Brian D Warner,&nbsp;Julian Oey","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The near-Earth asteroid 2015 CN13 made a fly-by of Earth in late 2015 February. We observed the asteroid on Feb 25, 26, and 28. Analysis of the data set found two possible periods, the most likely being <i>P</i> = 22.7 ± 0.3 h. Given the estimated diameter of 70 meters and long period, this puts 2015 CN13 in a small group of NEAs with <i>D</i> ≤ 140 meters and periods well below the spin barrier, <i>i.e.</i>, approximately <i>P</i> ≥ 2.2 hours.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 3","pages":"196-197"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244135/pdf/nihms-1570075.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37976990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THE HUNGARIA ASTEROID 4868 KNUSHEVIA: A POSSIBLE BINARY. 匈牙利小行星 4868 Knushevia：一个可能的双星。
The Minor planet bulletin Pub Date : 2015-07-01
Brian D Warner, Robert D Stephens
{"title":"THE HUNGARIA ASTEROID 4868 KNUSHEVIA: A POSSIBLE BINARY.","authors":"Brian D Warner, Robert D Stephens","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>CCD photometry observations of the Hungaria asteroid 4868 Knushevia were made in 2013 April-June at the Center for Solar System Studies. Analysis of the data indicates that the asteroid may be a binary with a primary period <i>P<sub>1</sub></i> = 3.4122 ± 0.0001 h, <i>A<sub>1</sub></i> = 0.05 ± 0.01 mag and a secondary period of <i>P<sub>2</sub></i> = 11.922 ± 0.003 h with possible <i>mutual events, i.e.,</i> occultations and/or eclipses, of about 0.02 mag depth. On that assumption, this leads to an estimated effective size ratio of <i>D<sub>S</sub>/D<sub>P</sub></i> ≥ 0.13 ± 0.03, which fits well within a model of binary asteroids developed by Pravec et al. (2010).</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 3","pages":"188-189"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244136/pdf/nihms-1570074.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37976988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
5426 SHARP: A PROBABLE HUNGARIA BINARY. 5426 锐：一个可能的匈牙利二进制。
The Minor planet bulletin Pub Date : 2015-07-01
Brian D Warner, Vladimir Benishek, Andrea Ferrero
{"title":"5426 SHARP: A PROBABLE HUNGARIA BINARY.","authors":"Brian D Warner, Vladimir Benishek, Andrea Ferrero","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Initial CCD photometry observations of the Hungaria asteroid 5426 Sharp in 2014 December and 2015 January at the Center of Solar System Studies-Palmer Divide Station in Landers, CA, showed attenuations from the general lightcurve, indicating the possibility of the asteroid being a binary system. The secondary period was almost exactly an Earth day, prompting a collaboration to be formed with observers in Europe, which eventually allowed establishing two periods: <i>P<sub>1</sub></i> = 4.5609 ± 0.0003 h, <i>A<sub>1</sub></i> = 0.18 ± 0.01 mag and <i>P<sub>2</sub></i> = 24.22 ± 0.02 h, <i>A<sub>2</sub></i> = 0.08 ± 0.01 mag. No <i>mutual events, i.e.</i>, occultations and/or eclipses, were seen, therefore the asteroid is considered a <i>probable</i> and not <i>confirmed</i> binary.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 3","pages":"206-207"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244134/pdf/nihms-1570076.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37976991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 DECEMBER - 2015 MARCH. CS3 帕尔默分水岭站的小行星光曲线分析：2014 年 12 月至 2015 年 3 月。
The Minor planet bulletin Pub Date : 2015-07-01
Brian D Warner
{"title":"ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 DECEMBER - 2015 MARCH.","authors":"Brian D Warner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Lightcurves for 13 main-belt asteroids were obtained at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) from 2014 December through 2015 March. All but two were members of the Hungaria orbital group or collisional family and observed as follow-up to previous apparitions to check for undiscovered satellites or to obtain data for spin axis and shape modeling.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 3","pages":"167-172"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7296835/pdf/nihms-1570069.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38058415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THREE UNUSUAL HUNGARIA ASTEROIDS. 三颗不寻常的匈牙利小行星。
The Minor planet bulletin Pub Date : 2015-07-01
Brian D Warner
{"title":"THREE UNUSUAL HUNGARIA ASTEROIDS.","authors":"Brian D Warner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Three Hungaria asteroids observed at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) in 2015 January-March showed unusual characteristics. 2449 Kenos, a probable member of the Hungaria <i>collisional family,</i> is likely to be a binary object with period <i>P</i> <sub><i>1</i></sub> = 3.8481 h and <i>P</i> <sub><i>2</i></sub> = 15.85 h. The 2015 observations of 6901 Roybishop, a member of the Hungaria <i>orbital group</i>, showed signs of a weak secondary period, <i>P</i> <sub><i>2</i></sub> = 10.58 h. The secondary period is in contradiction with previous results. (23615) 1996 FK12 may be another example of so-called <i>wide binaries</i>, showing a strong short period, <i>P</i> <sub><i>2</i></sub> = 3.6456 h, presumably due to a widely-separated satellite that is not tidally locked to a very long orbital period. The primary in such a system has a very long period, <i>P</i> <sub><i>1</i></sub> = 368 h in this instance. The main question for 1996 FK12 is the validity of the long period.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 3","pages":"183-186"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244151/pdf/nihms-1570072.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37976989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2015 JANUARY - MARCH. cs3-palmer分站近地小行星光曲线分析:2015年1 - 3月。
The Minor planet bulletin Pub Date : 2015-07-01
Brian D Warner
{"title":"NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2015 JANUARY - MARCH.","authors":"Brian D Warner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Lightcurves for 35 near-Earth asteroids (NEAs) were obtained at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) from 2014 December through 2015 March. One object, (159454) 2000 DJ8, may be a highly bifurcated body, or a close binary.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 3","pages":"172-183"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244166/pdf/nihms-1570070.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37977588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 OCTOBER-DECEMBER. cs3-palmer分站近地小行星光曲线分析:2014年10 - 12月。
The Minor planet bulletin Pub Date : 2015-04-01
Brian D Warner
{"title":"NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 OCTOBER-DECEMBER.","authors":"Brian D Warner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Lightcurves for 43 near-Earth asteroids (NEAs) were obtained at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) from 2014 October through December.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"42 2","pages":"115-127"},"PeriodicalIF":0.0,"publicationDate":"2015-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244186/pdf/nihms-1570065.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37977585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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