{"title":"近双星(348400)2005 jf21的光曲线观测。","authors":"Robert D Stephens, Brian D Warner","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>CCD photometric observations were made of the near-Earth asteroid (348400) 2005 JF21 in 2015 June and August. Initial analysis in June did not find any signs of a satellite. Follow-up analysis in August using both data sets found indications that the asteroid was binary with a primary period of 2.41 h and an orbital period for the satellite of about 14.3 h. In mid-August, analysis of radar observations at Goldstone (Naidu et al., 2015) confirmed that the asteroid is a binary.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"43 1","pages":"22-24"},"PeriodicalIF":0.0000,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244009/pdf/nihms-1570082.pdf","citationCount":"0","resultStr":"{\"title\":\"LIGHTCURVE OBSERVATIONS OF (348400) 2005 JF21: AN NEA BINARY.\",\"authors\":\"Robert D Stephens, Brian D Warner\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>CCD photometric observations were made of the near-Earth asteroid (348400) 2005 JF21 in 2015 June and August. Initial analysis in June did not find any signs of a satellite. Follow-up analysis in August using both data sets found indications that the asteroid was binary with a primary period of 2.41 h and an orbital period for the satellite of about 14.3 h. In mid-August, analysis of radar observations at Goldstone (Naidu et al., 2015) confirmed that the asteroid is a binary.</p>\",\"PeriodicalId\":75145,\"journal\":{\"name\":\"The Minor planet bulletin\",\"volume\":\"43 1\",\"pages\":\"22-24\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244009/pdf/nihms-1570082.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Minor planet bulletin\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Minor planet bulletin","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
2015年6月和8月对近地小行星(348400)2005 JF21进行了CCD光度观测。6月份的初步分析没有发现任何卫星的迹象。8月使用两组数据进行的后续分析发现，有迹象表明这颗小行星是双星，其主周期为2.41小时，卫星的轨道周期约为14.3小时。8月中旬，对Goldstone (Naidu et al.， 2015)雷达观测的分析证实了这颗小行星是一颗双星。
LIGHTCURVE OBSERVATIONS OF (348400) 2005 JF21: AN NEA BINARY.
CCD photometric observations were made of the near-Earth asteroid (348400) 2005 JF21 in 2015 June and August. Initial analysis in June did not find any signs of a satellite. Follow-up analysis in August using both data sets found indications that the asteroid was binary with a primary period of 2.41 h and an orbital period for the satellite of about 14.3 h. In mid-August, analysis of radar observations at Goldstone (Naidu et al., 2015) confirmed that the asteroid is a binary.
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