Community Challenges in the Era of Petabyte-Scale Sky Surveys

Kelley, Michael S. P.; Hsieh, Henry H.; Chandler, Colin Orion; Eggl, Siegfried; Holt, Timothy R.; Jones, Lynne; Jurić, Mario; Lister, Timothy A.; Moeyens, Joachim; Oldroyd, William J.; Ragozzine, Darin; Trilling, David E.

doi:10.3847/25c2cfeb.fb466c8b

Cited by 2 publications

(1 citation statement)

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“…The survey strategy to acquire 1000 images per night with its 3.2 gigapixel camera is expected to produce on the order of 100 Tb of data per night. The challenges of working with this scale of data are extraordinary (e.g., Kelley et al 2021 Default HARVEST vetting. Our automated vetting, such as the delta magnitude limits (Section 2.5), filters out ∼70% of thumbnails.…”

Section: Considering the Legacy Survey Of Space And Timementioning

confidence: 99%

The Active Asteroids Citizen Science Program: Overview and First Results

Chandler,

Trujillo,

Oldroyd

et al. 2024

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We present the Citizen Science program Active Asteroids and describe discoveries stemming from our ongoing project. Our NASA Partner program is hosted on the Zooniverse online platform and launched on 2021 August 31, with the goal of engaging the community in the search for active asteroids—asteroids with comet-like tails or comae. We also set out to identify other unusual active solar system objects, such as active Centaurs, active quasi-Hilda asteroids (QHAs), and Jupiter-family comets (JFCs). Active objects are rare in large part because they are difficult to identify, so we ask volunteers to assist us in searching for active bodies in our collection of millions of images of known minor planets. We produced these cutout images with our project pipeline that makes use of publicly available Dark Energy Camera data. Since the project launch, roughly 8300 volunteers have scrutinized some 430,000 images to great effect, which we describe in this work. In total, we have identified previously unknown activity on 15 asteroids, plus one Centaur, that were thought to be asteroidal (i.e., inactive). Of the asteroids, we classify four as active QHAs, seven as JFCs, and four as active asteroids, consisting of one main-belt comet (MBC) and three MBC candidates. We also include our findings concerning known active objects that our program facilitated, an unanticipated avenue of scientific discovery. These include discovering activity occurring during an orbital epoch for which objects were not known to be active, and the reclassification of objects based on our dynamical analyses.

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Section: Considering the Legacy Survey Of Space And Timementioning

confidence: 99%