Asteroidactive

Unknown

AI-narrated summarySnapshot 7f3a · 2026-07-14
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 14, 2026, 09:41 AM UTC·heliocentric ecliptic J2000

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

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
retrieved Jul 14, 2026, 09:41 AM UTC
e · eccentricity
0JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
retrieved Jul 14, 2026, 09:41 AM UTC
i · inclination
JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
retrieved Jul 14, 2026, 09:41 AM UTC
Ω · RAAN
JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
retrieved Jul 14, 2026, 09:41 AM UTC
ω · arg. of periapsis
JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
retrieved Jul 14, 2026, 09:41 AM UTC
M · mean anomaly
JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
retrieved Jul 14, 2026, 09:41 AM UTC
ν · true anomaly
JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
retrieved Jul 14, 2026, 09:41 AM UTC
period
0 dJPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
retrieved Jul 14, 2026, 09:41 AM 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

    High Resolution ALMA Data of the Fomalhaut Debris Disk Confirms Apsidal Width Variation

    2025
    · The Astrophysical Journal Letters, Volume 990, Number 2, Published 2025 September 4
    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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:2509.02825Read
  2. 2

    The Search for Disk Perturbing Planets Around the Asymmetrical Debris Disk System HD 111520 Using REBOUND

    2024
    Katie A. Crotts, Brenda C. Matthews · 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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:2410.03932Read
  3. 3

    A Measurement of the Cosmic Optical Background and Diffuse Galactic Light Scaling from the R < 50 AU New Horizons-LORRI Data

    2022
    Teresa Symons, Michael Zemcov, Asantha Cooray, 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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:2212.07449Read
  4. 4

    Measurements of the Zodiacal Light Absolute Intensity through Fraunhofer Absorption Line Spectroscopy with CIBER

    2021
    Phillip Korngut, Min Gyu Kim, Toshiaki Arai, 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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:2104.07104Read
  5. 5

    The Sariçiçek howardite fall in Turkey: Source crater of HED meteorites on Vesta and impact risk of Vestoids

    2021
    Ozan Unsalan, Peter Jenniskens, Qing-Zhu Yin, et al. · Unsalan, Ozan, Peter Jenniskens,et al. "The Sariçiçek howardite fall in Turkey: Source crater of HED meteorites on Vesta and impact risk of Vestoids." Meteoritics & Planetary Science 54, no. 5 (2019): 953-1008
    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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:2102.03733Read
  6. 6

    Diurnal temperature variation as the source of the preferential direction of fractures on asteroids: theoretical model for the case of Bennu

    2021
    D. Uribe, M. Delbo, P. -O. Bouchard, 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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:2102.01939Read
  7. 7

    The asymmetric inner disk of the Herbig Ae star HD 163296 in the eyes of VLTI/MATISSE: evidence for a vortex?

    2020
    J. Varga, M. Hogerheijde, R. van Boekel, et al. · A&A 647, A56 (2021)
    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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:2012.05697Read
  8. 8

    Multi-epoch Direct Imaging and Time-Variable Scattered Light Morphology of the HD 163296 Protoplanetary Disk

    2018
    Evan A. Rich, John P. Wisniewski, Thayne Currie, et al. · ApJ 2019
    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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:1811.07785Read
  9. 9

    The protoplanetary system HD 100546 in H$α$ polarized light from SPHERE/ZIMPOL. A bar-like structure across the disk gap?

    2017
    I. Mendigutía, R. D. Oudmaijer, A. Garufi, et al. · A&A 608, A104 (2017)
    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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:1711.00023Read
  10. 10

    Variable dynamics in the inner disk of HD 135344B revealed with multi-epoch scattered light imaging

    2017
    Tomas Stolker, Mike Sitko, Bernard Lazareff, 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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM UTC
    arXiv:1710.02532Read
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 ol2t-90b5
  • JPL SBDB
    JPL SBDBPD-USG

    NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).

    https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
    retrieved Jul 14, 2026, 09:41 AM UTC
    PD-USG
    NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-07-14).
    https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2026+nw&phys-par=1&full-prec=1&discovery=1
    2026-07-14 09:41:17 UTC
  • JPL CAD
    JPL CADPD-USG

    NASA/JPL CNEOS, Close-Approach Data (accessed 2026-07-14).

    https://ssd-api.jpl.nasa.gov/cad.api?des=2026&date-min=1996-07-14&date-max=2126-07-14&dist-max=0.3
    retrieved Jul 14, 2026, 09:41 AM UTC
    PD-USG
    NASA/JPL CNEOS, Close-Approach Data (accessed 2026-07-14).
    https://ssd-api.jpl.nasa.gov/cad.api?des=2026&date-min=1996-07-14&date-max=2126-07-14&dist-max=0.3
    2026-07-14 09:41:17 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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Jul 14, 2026, 09:41 AM 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:nw&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    2026-07-14 09:41:17 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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