Asteroidactive

Unknown

AI-narrated summarySnapshot 7f3a · 2026-09-20
Unknown is a 0-m Sq-type near-Earth asteroid discovered 19 June 2004 by R. A. Tucker, D. J. Tholen and F. Bernardi at Kitt Peak. Its 13 April 2029 Earth flyby will pass within 38 012 km of the geocenter — closer than geosynchronous orbit and visible to the naked eye from EMEA . Goldstone observations in 2021 cleared all impact possibilities through 2100.
Open questionsTumbling spin pole orientationInternal porosity2029 tidal deformation predictions
Physical parameters

What we know about the body

Orbit · Heliocentric J2000

Keplerian elements at epoch

Epoch Sep 20, 2026, 07:39 PM UTC·heliocentric ecliptic J2000

a · semi-major axis
0 AUJPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
retrieved Sep 20, 2026, 07:39 PM UTC
e · eccentricity
0JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
retrieved Sep 20, 2026, 07:39 PM UTC
i · inclination
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
retrieved Sep 20, 2026, 07:39 PM UTC
Ω · RAAN
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
retrieved Sep 20, 2026, 07:39 PM UTC
ω · arg. of periapsis
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
retrieved Sep 20, 2026, 07:39 PM UTC
M · mean anomaly
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
retrieved Sep 20, 2026, 07:39 PM UTC
ν · true anomaly
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
retrieved Sep 20, 2026, 07:39 PM UTC
period
0 dJPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
retrieved Sep 20, 2026, 07:39 PM UTC
Earth
Unknown relative to Earth orbit2D · projected to ecliptic
Ephemeris · JPL Horizons

Observation planning

Unknown — apparent RA/Dec/Mag/Range from chosen observer site, or Cartesian state vectors.

No ephemeris rows. Adjust the window or step, then re-run.
Close approaches

Past and predicted passes

Within ~0.3 AU of Earth · sourced live from JPL CAD (1.5 March 2023)

Date (UTC)BodyMiss · kmMiss · AUv · km/sSource
upcoming miss < 100 000 km
Impact monitoring · NASA CNEOS Sentry

Not on the Sentry risk list

Cum. IP
—
Palermo
—
Torino max
—
ReadingNot on the published Sentry risk list. Sentry only catalogues objects with non-zero impact probability over a 100-year window. Brand-new short-arc NEOs may still be on the Scout watch list.
Literature

Top 10 cited papers

Cross-referenced ADS + arXiv. Full citation metadata exports below.

  1. 1

    Spatially Scanned STIS Spectra of the Exoplanet Host Star 55 Cnc

    2026
    · arXiv preprint
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2608.25184Read
  2. 2

    Diffractive Sail H-Reversal Trajectory: Theoretical Feasibility, Design Strategies, and Applications

    2026
    Jinkai Zhang, Shuyue Fu, Di Wu, et al. · arXiv preprint
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2608.04596Read
  3. 3

    CHEOPS observations of V1298 Tau: updated planetary densities and implications on the early evolution of the young system

    2026
    Hinna Shivkumar, Sérgio Gomes, Jean-Michel Désert, et al. · arXiv preprint
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2607.01559Read
  4. 4

    ALMA 873 $μ$m Polarization Observations of the PDS~70 Disk

    2026
    Hauyu Baobab Liu, Kiyoaki Doi, Simon Casassus, et al. · A&A 708, A95 (2026)
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2602.05247Read
  5. 5

    TOI-7166 b: A Habitable Zone mini-Neptune planet around a nearby low-mass star

    2025
    Khalid Barkaoui, Francisco J. Pozuelos, Benjamin V. Rackham, et al. · Monthly Notices of the Royal Astronomical Society, 2025, Volume 544, Issue 2, pp. 2637-2652, 16 pp
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2512.06841Read
  6. 6

    Polarimetric and spectropolarimetric observations with FoReRo2: Instrument overview and standard star monitoring

    2025
    Yanko Nikolov, Galin Borisov, Stefano Bagnulo, et al. · A&A 708, A30 (2026)
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2512.05670Read
  7. 7

    TOI-1846b: A super-Earth in the radius valley orbiting a nearby M dwarf

    2025
    Abderahmane Soubkiou, Khalid Barkaoui, Zouhair Benkhaldoun, et al. · arXiv preprint
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2506.18550Read
  8. 8

    TOI-6508b: A massive transiting brown dwarf orbiting a low-mass star

    2025
    K. Barkaoui, D. Sebastian, S. Zúñiga-Fernández, et al. · arXiv preprint
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2502.19940Read
  9. 9

    Short-Period Small Planets with High Mutual Inclinations are more Common around Metal-Rich Stars

    2025
    Xinyan Hua, Sharon Xuesong Wang, Dongsheng An, et al. · arXiv preprint
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2502.00442Read
  10. 10

    Quiescent Solar Wind Regions in the Near-Sun Environment: Properties and Radial Evolution

    2024
    Benjamin Short, David M. Malaspina, Alexandros Chasapis, et al. · arXiv preprint
    arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv:2406.00174Read
Provenance

Where every value came from

Every cell above is hyperlinked to its primary source. Re-run this card 30 days from now and you’ll get the same numbers — or a diff if the upstream changed.

snapshot 0f78-1cf4
  • JPL SBDB
    JPL SBDBPD-USG

    NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).

    https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
    retrieved Sep 20, 2026, 07:39 PM UTC
    PD-USG
    NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-20).
    https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+rs&phys-par=1&full-prec=1&discovery=1
    2026-09-20 19:39:58 UTC
  • JPL CAD
    JPL CADPD-USG

    NASA/JPL CNEOS, Close-Approach Data (accessed 2026-09-20).

    https://ssd-api.jpl.nasa.gov/cad.api?des=2026&date-min=1996-09-20&date-max=2126-09-20&dist-max=0.3
    retrieved Sep 20, 2026, 07:39 PM UTC
    PD-USG
    NASA/JPL CNEOS, Close-Approach Data (accessed 2026-09-20).
    https://ssd-api.jpl.nasa.gov/cad.api?des=2026&date-min=1996-09-20&date-max=2126-09-20&dist-max=0.3
    2026-09-20 19:39:57 UTC
  • arXiv
    arXivarXiv-API-ToU

    Thank you to arXiv for use of its open access interoperability.

    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 20, 2026, 07:39 PM UTC
    arXiv-API-ToU
    Thank you to arXiv for use of its open access interoperability.
    https://export.arxiv.org/api/query?search_query=cat:astro-ph.EP+AND+all:rs&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    2026-09-20 19:39:58 UTC
What MCPOrbital will not do

Explicit non-promises

Saying no to these protects the brand, the safety posture, and your budget. MCPOrbital operates in research, simulation, decision-support, and sandbox modes only.

  • Send a burn command to a real asset
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  • Replace STK / GMAT for flight-grade analysis
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  • Write your dissertation chapter
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  • Peer-review a paper
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