Asteroidactive

Unknown

AI-narrated summarySnapshot 7f3a · 2026-07-30
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 Jul 30, 2026, 04:52 PM UTC·heliocentric ecliptic J2000

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

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
retrieved Jul 30, 2026, 04:52 PM UTC
e · eccentricity
0JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
retrieved Jul 30, 2026, 04:52 PM UTC
i · inclination
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
retrieved Jul 30, 2026, 04:52 PM UTC
Ω · RAAN
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
retrieved Jul 30, 2026, 04:52 PM UTC
ω · arg. of periapsis
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
retrieved Jul 30, 2026, 04:52 PM UTC
M · mean anomaly
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
retrieved Jul 30, 2026, 04:52 PM UTC
ν · true anomaly
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
retrieved Jul 30, 2026, 04:52 PM UTC
period
0 dJPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
retrieved Jul 30, 2026, 04:52 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 9 cited papers

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

  1. 1

    Unraveling the Mystery of the Peculiar and Young Hot Jupiter CoRoT-2b II: Phase Resolved Emission Spectroscopy with VLT/CRIRES+ and Gemini-S/IGRINS

    2026
    Aurora Y. Kesseli, Siddharth Gandhi, Lisa Dang, 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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 PM UTC
    arXiv:2606.17304Read
  2. 2

    Chemical Equilibrium Calculations for Bulk Silicate Earth Material at High Temperatures

    2023
    Bruce Fegley, Katharina Lodders, Nathan S. Jacobson · 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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 PM UTC
    arXiv:2305.13327Read
  3. 3

    Observation of the $α$ Carinid meteor shower 2020 unexpected outburst

    2021
    Juan Sebastian Bruzzone, Robert Weryk, Diego Janches, 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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 PM UTC
    arXiv:2102.13043Read
  4. 4

    KELT-17: a chemically peculiar Am star and a hot-Jupiter planet

    2020
    C. Saffe, P. Miquelarena, J. Alacoria, et al. · A&A 641, A145 (2020)
    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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 PM UTC
    arXiv:2007.14210Read
  5. 5

    Comparison of Pulsar Positions from Timing and Very Long Baseline Astrometry

    2017
    J. B. Wang, W. A. Coles, G. Hobbs, 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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 PM UTC
    arXiv:1704.01011Read
  6. 6

    Modeling the Orbital Sampling Effect of Extrasolar Moons

    2016
    · The Astrophysical Journal (2016) 820, 88
    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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 PM UTC
    arXiv:1603.07112Read
  7. 7

    On the detection of Exomoons: A search in Kepler data for the orbital sampling effect and the scatter peak

    2015
    Michael Hippke · 2015 ApJ 806 51
    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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 PM UTC
    arXiv:1502.05033Read
  8. 8

    Detecting extrasolar moons akin to solar system satellites with an orbital sampling effect

    2014
    René Heller · The Astrophysical Journal, 2014, Vol. 787, id 14 (15 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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 PM UTC
    arXiv:1403.5839Read
  9. 9

    The Dust Trail of Comet 67P/Churyumov-Gerasimenko between 2004 and 2006

    2010
    Jessica Agarwal, Michael Mueller, William T. Reach, 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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 PM UTC
    arXiv:1001.3775Read
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 4y39-3c95
  • JPL SBDB
    JPL SBDBPD-USG

    NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).

    https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
    retrieved Jul 30, 2026, 04:52 PM UTC
    PD-USG
    NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-30).
    https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+os&phys-par=1&full-prec=1&discovery=1
    2026-07-30 16:52:38 UTC
  • JPL CAD
    JPL CADPD-USG

    NASA/JPL CNEOS, Close-Approach Data (accessed 2026-07-30).

    https://ssd-api.jpl.nasa.gov/cad.api?des=2026&date-min=1996-07-30&date-max=2126-07-30&dist-max=0.3
    retrieved Jul 30, 2026, 04:52 PM UTC
    PD-USG
    NASA/JPL CNEOS, Close-Approach Data (accessed 2026-07-30).
    https://ssd-api.jpl.nasa.gov/cad.api?des=2026&date-min=1996-07-30&date-max=2126-07-30&dist-max=0.3
    2026-07-30 16:52:39 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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 30, 2026, 04:52 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:os&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    2026-07-30 16:52:39 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.

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