{
  "abstract": "In the search for technosignatures, it can be useful to narrow down the cosmic haystack by prioritizing time-coordinate “Schelling points” at which a beacon may be more likely to be transmitted. One such Schelling point is the antisolar point (ASP), the place and moment at which Earth would lie directly between a hypothetical transmitter in the Earth's transit zone (i.e., ecliptic) and the Sun. In this work, we describe a campaign to survey the ASP for radio technosignatures using the Allen Telescope Array, report the results of 3 initial nights of data from a pilot study in summer 2023, and discuss the future of the campaign. In the pilot study, we find no sky-localized narrowband 1–2.4 GHz technosignatures within an R.A. range of approximately 20.266–21.312 hr during the ASP, setting an upper limit flux density threshold of 115–936 Jy.",
  "abstract_shown": true,
  "affiliations": [
    "SETI Institute",
    "Berkeley SETI Research Center",
    "University of New Mexico",
    "The University of Manchester",
    "University of Oxford",
    "University of Washington",
    "University of California",
    "Stanford University",
    "Department of Astronomy",
    "University of Malta"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 16,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Sofia Z. Sheikh",
      "orcid": "0000-0001-7057-4999"
    },
    {
      "affs": [
        2
      ],
      "name": "Eleanor Hort"
    },
    {
      "affs": [
        3
      ],
      "name": "Bárbara Cabrales",
      "orcid": "0009-0009-1019-3890"
    },
    {
      "affs": [
        0,
        4
      ],
      "name": "Isabel Gerrard",
      "orcid": "0009-0003-9610-5068"
    },
    {
      "affs": [
        0
      ],
      "name": "Wael Farah",
      "orcid": "0000-0002-0161-7243"
    },
    {
      "affs": [
        5
      ],
      "name": "Nick Tusay",
      "orcid": "0000-0001-9686-5890"
    },
    {
      "affs": [
        4,
        6
      ],
      "name": "David R. DeBoer",
      "orcid": "0000-0003-3197-2294"
    },
    {
      "affs": [
        7
      ],
      "name": "Saul Balcarcel-Salazar",
      "orcid": "0009-0005-1104-3502"
    },
    {
      "affs": [
        0
      ],
      "name": "Joe S. Bright",
      "orcid": "0000-0002-7735-5796"
    },
    {
      "affs": [
        0
      ],
      "name": "Luigi F. Cruz",
      "orcid": "0000-0001-5576-2254"
    },
    {
      "affs": [
        1,
        8
      ],
      "name": "Ben Jacobson-Bell",
      "orcid": "0009-0009-6231-9280"
    },
    {
      "affs": [
        0
      ],
      "name": "Mark Masters"
    },
    {
      "affs": [
        0
      ],
      "name": "Alexander W. Pollak",
      "orcid": "0000-0002-3430-7671"
    },
    {
      "affs": [
        0
      ],
      "name": "Seth Shostak"
    },
    {
      "affs": [
        0
      ],
      "name": "Carol Shumaker"
    },
    {
      "affs": [
        0,
        1,
        3,
        4,
        9
      ],
      "name": "Andrew Siemion",
      "orcid": "0000-0003-2828-7720"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/42d9gtkm4hb55.bib",
  "cited_by": 0,
  "doi": "10.3847/1538-3881/aeaa59",
  "fulltext_url": null,
  "id": "42d9gtkm4hb55",
  "issns": [
    "0004-6256",
    "1538-3881"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.3847/1538-3881/aeaa59",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [],
  "openalex": null,
  "pdf_url": "https://iopscience.iop.org/article/10.3847/1538-3881/aeaa59/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-03",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/42d9gtkm4hb55.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:33Z",
      "native_id": "10.3847/1538-3881/aeaa59",
      "source": "crossref",
      "url": "https://iopscience.iop.org/article/10.3847/1538-3881/aeaa59"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "journal-openalex:3103|Stellar, planetary, and galactic studies",
      "subfield": "stellar"
    }
  ],
  "title": "A Large-scale Technosignature Survey of the Antisolar Point with the Allen Telescope Array: Survey Design and Pilot Results",
  "title_text": "A Large-scale Technosignature Survey of the Antisolar Point with the Allen Telescope Array: Survey Design and Pilot Results",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T00:20:44Z",
  "url": "https://research.draconitic.com/paper/42d9gtkm4hb55",
  "venue": "The Astronomical Journal",
  "versions": []
}