Toward Efficient Detection of Small Near-Earth Asteroids Using the Zwicky Transient Facility (ZTF)

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Fältnamn	Indikatorer	Metadata
000		03402naa a2200637 4500
001		oai:DiVA.org:su-170070
003		SwePub
008		190703s2019 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1700702 URI
024	7	a https://doi.org/10.1088/1538-3873/ab1b182 DOI
040		a (SwePub)su
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Ye, Quanzhi4 aut
245	1 0	a Toward Efficient Detection of Small Near-Earth Asteroids Using the Zwicky Transient Facility (ZTF)
264		c 2019-05-24
264	1	b IOP Publishing,c 2019
338		a print2 rdacarrier
520		a We describe ZStreak, a semi-real-time pipeline specialized in detecting small, fast-moving, near-Earth asteroids (NEAs), which is currently operating on the data from the newly commissioned Zwicky Transient Facility (ZTF) survey. Based on a prototype originally developed by Waszczak et al. (2017) for the Palomar Transient Factory (PTF), the predecessor of ZTF, ZStreak features an improved machine-learning model that can cope with the 10x data rate increment between PTF and ZTF. Since its first discovery on 2018 February 5 (2018 CL), ZTF/ZStreak has discovered 45 confirmed new NEAs over a total of 232 observable nights until 2018 December 31. Most of the discoveries are small NEAs, with diameters less than similar to 100. m. By analyzing the discovery circumstances, we find that objects having the first to last detection time interval under 2. hr are at risk of being lost. We will further improve real-time follow-up capabilities, and work on suppressing false positives using deep learning.
650	7	a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe
650	7	a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng
653		a surveys
653		a minor planets
653		a asteroids: general
700	1	a Masci, Frank J.4 aut
700	1	a Lin, Hsing Wen4 aut
700	1	a Bolin, Bryce4 aut
700	1	a Chang, Chan-Kao4 aut
700	1	a Duev, Dmitry A.4 aut
700	1	a Helou, George4 aut
700	1	a Ip, Wing-Huen4 aut
700	1	a Kaplan, David L.u Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),University of Wisconsin-Milwaukee, USA4 aut
700	1	a Kramer, Emily4 aut
700	1	a Mahabal, Ashish4 aut
700	1	a Ngeow, Chow-Choong4 aut
700	1	a Nielsen, Avery J.4 aut
700	1	a Prince, Thomas A.4 aut
700	1	a Tan, Hanjie4 aut
700	1	a Yeh, Ting-Shuo4 aut
700	1	a Bellm, Eric C.4 aut
700	1	a Dekany, Richard4 aut
700	1	a Giomi, Matteo4 aut
700	1	a Graham, Matthew J.4 aut
700	1	a Kulkarni, Shrinivas R.4 aut
700	1	a Kupfer, Thomas4 aut
700	1	a Laher, Russ R.4 aut
700	1	a Rusholme, Ben4 aut
700	1	a Shupe, David L.4 aut
700	1	a Ward, Charlotte4 aut
710	2	a Stockholms universitetb Institutionen för astronomi4 org
773	0	t Publications of the Astronomical Society of the Pacificd : IOP Publishingg 131:1001q 131:1001x 0004-6280x 1538-3873
856	4	u https://iopscience.iop.org/article/10.1088/1538-3873/ab1b18/pdf
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-170070
856	4 8	u https://doi.org/10.1088/1538-3873/ab1b18

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