International Asteroid Warning Network Timing Campaign: 2019 XS
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Título: | International Asteroid Warning Network Timing Campaign: 2019 XS |
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Autor/es: | Farnocchia, Davide | Reddy, Vishnu | Bauer, James M. | Warner, Elizabeth M. | Micheli, Marco | Payne, Matthew J. | Farnham, Tony | Kelley, Michael S. | Balam, David D. | Barkov, Anatoly P. | Berteşteanu, Daniel | Birlan, Mirel | Bolin, Bryce T. | Brucker, Melissa J. | Buzzi, Luca | Chambers, Kenneth C. | Demetz, Lukas | Djupvik, Anlaug A. | Elenin, Leonid | Fini, Paolo | Flynn, Randy | Galli, Gianni | Gao, Xing | Gȩdek, Marcin | Granvik, Mikael | Hasubick, Werner | Ivanov, Alexander L. | Ivanov, Viktor A. | Ivanova, Natalya V. | Jaques, Cristóvão | Kasikov, Anni | Kim, Myung-Jin | Lane, David | Lee, Hee-Jae | Li, Bin | Li, Fan | Lister, Tim | Lysenko, Vadim E. | Magnier, Eugene A. | Mahomed, Nawaz | McCormick, Jennie | Moon, Darrel | Nastasi, Alessandro | Nedelcu, Dan A. | Neue, Guenther | Petrescu, Elisabeta | Popescu, Marcel | Prosperi, Enrico | Reszelewski, Rafał | Roh, Dong-Goo | Romanov, Filipp D. | Santana-Ros, Toni | Schmalz, Anastasia | Schmalz, Sergei | Scotti, James V. | Seaman, Robert | Sioulas, Nick | Sonka, Adrian B. | Tholen, David J. | Trelia, Madalina M. | Wainscoat, Richard | Wang, Xin | Wells, Guy | Weryk, Robert | Yakovenko, Nikolai A. | Ye, Quanzhi | Yim, Hong-Suh | Zhai, Chengxing | Zhang, Chen | Zhao, Haibin | Zhu, Tinglei | Żołnowski, Michał |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías |
Palabras clave: | Asteroids | Near-Earth objects | Optical telescopes | Astrometry |
Fecha de publicación: | 13-jul-2022 |
Editor: | IOP Publishing | American Astronomical Society |
Cita bibliográfica: | The Planetary Science Journal. 2022, 3:156. https://doi.org/10.3847/PSJ/ac7224 |
Resumen: | As part of the International Asteroid Warning Network's observational exercises, we conducted a campaign to observe near-Earth asteroid 2019 XS around its close approach to Earth on 2021 November 9. The goal of the campaign was to characterize errors in the observation times reported to the Minor Planet Center, which become an increasingly important consideration as astrometric accuracy improves and more fast-moving asteroids are observed. As part of the exercise, a total of 957 astrometric observations of 2019 XS during the encounter were reported and subsequently were analyzed to obtain the corresponding residuals. While the timing errors are typically smaller than 1 s, the reported times appear to be negatively biased, i.e., they are generally earlier than they should be. We also compared the observer-provided position uncertainty with the cross-track residuals, which are independent of timing errors. A large fraction of the estimated uncertainties appear to be optimistic, especially when <0farcs2. We compiled individual reports for each observer to help identify and remove the root cause of any possible timing error and improve the uncertainty quantification process. We suggest possible sources of timing errors and describe a simple procedure to derive reliable, conservative position uncertainties. |
Patrocinador/es: | Part of this work was supported by a grant of the Romanian National Authority for Scientific Research—UEFISCDI, project No. PN-III-P1-1.1-TE-2019-1504. Part of this work was supported by a grant of the Ministry of National Education and Scientific Research, PNIII-P2-1214/25.10.2021. Part of this work was supported by NASA YORPD grant 80NSSC21K0657. Part of this work was funded by the NEO-MAPP project (H2020-EU-2-1-6/870377). This work was partially funded by the Spanish MICIN/AEI/10.13039/501100011033 and by "ERDF A way of making Europe" by the European Union through grant RTI2018-095076-B-C21, and the Institute of Cosmos Sciences University of Barcelona (ICCUB, Unidad de Excelencia 'María de Maeztu') through grant CEX2019-000918-M. Part of this work was supported by the Space debris and NEO research project (KJSP2020020204, KJSP2020020102, and KJSP2020020101) and the Minor Planet Foundation. Pan-STARRS is a project of the Institute for Astronomy of the University of Hawaii and is supported by the NASA SSO Near-Earth Observation Program under grant 80NSSC21K1572 and by the state of Hawaii. ZTF is supported by the National Science Foundation under grant No. AST-1440341. JSPS KAKENHI (JP18H05439) and JST PRESTO (JPMJPR1775). Part of this work was supported by NASA grant 80NSSC21K0807. |
URI: | http://hdl.handle.net/10045/125567 |
ISSN: | 2632-3338 |
DOI: | 10.3847/PSJ/ac7224 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3847/PSJ/ac7224 |
Aparece en las colecciones: | Investigaciones financiadas por la UE Personal Investigador sin Adscripción a Grupo |
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