Asteroidactive

Unknown

AI-narrated summarySnapshot 7f3a · 2026-09-29
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 29, 2026, 02:27 AM UTC·heliocentric ecliptic J2000

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

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 02:27 AM UTC
e · eccentricity
0JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 02:27 AM UTC
i · inclination
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 02:27 AM UTC
Ω · RAAN
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 02:27 AM UTC
ω · arg. of periapsis
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 02:27 AM UTC
M · mean anomaly
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 02:27 AM UTC
ν · true anomaly
0°JPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 02:27 AM UTC
period
0 dJPL SBDB
JPL SBDBPD-USG

NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).

https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 02:27 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

    External photoevaporation in the center of Tr14

    2026
    Katia Gkimisi, Da Eun Kang, Dominika Itrich, 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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2609.28648Read
  2. 2

    Probing Exoplanetary Rings with Asterodensity Profiling: A PhotoRing Analysis of Kepler-51

    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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2609.25234Read
  3. 3

    Period-Inverted Blast-Radius Normalization for a Non-Ablating Hypersonic Reentry Source Using OSIRIS-REx Capsule Infrasound

    2026
    Elizabeth A. Silber · Silber, E. A. (2026) Pure and Applied Geophysics
    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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2609.19141Read
  4. 4

    Stellar tidal systematics in apsidal-motion searches for circumbinary planets: CH Ind and SW CMa

    2026
    Qunfeng Jiang · 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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2608.13269Read
  5. 5

    A Systematic Trend in the Observed vs. Predicted Radii of Transiting Brown Dwarfs

    2026
    Thomas G. Beatty · 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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2607.27352Read
  6. 6

    Transit timing and starspot-induced transit depth variations in the $\sim$17 Myr old HIP 67522 system

    2026
    H. Chakraborty, M. Lendl, A. Nigioni, 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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2606.18045Read
  7. 7

    Accessible does not mean exploitable: HiPERCAM reveals the ultra-fast rotation of 2022 OB$_5$

    2026
    Miguel R. Alarcon, Javier Licandro, Miquel Serra-Ricart, et al. · Icarus 117153 (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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2605.04784Read
  8. 8

    Precise determination of circumstellar disk lifetimes: Disk evolution in a single star-forming region

    2025
    Fabian A. Polnitzky, Sebastian Ratzenböck, Josefa E. Großschedl, et al. · A&A 707, A216 (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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2512.06873Read
  9. 9

    Constraining properties of dust formed in Wolf-Rayet binary WR 112 using mid-infrared and millimeter observations

    2025
    Donglin Wu, Yinuo Han, Peredur M. Williams, et al. · 2026, ApJ, 999, 32
    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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2511.19572Read
  10. 10

    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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 AM UTC
    arXiv:2509.02825Read
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 376a-0112
  • JPL SBDB
    JPL SBDBPD-USG

    NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).

    https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
    retrieved Sep 29, 2026, 02:27 AM UTC
    PD-USG
    NASA/JPL Solar System Dynamics, Small-Body Database (accessed 2026-09-29).
    https://ssd-api.jpl.nasa.gov/sbdb.api?sstr=2020+ob&phys-par=1&full-prec=1&discovery=1
    2026-09-29 02:27:24 UTC
  • JPL CAD
    JPL CADPD-USG

    NASA/JPL CNEOS, Close-Approach Data (accessed 2026-09-29).

    https://ssd-api.jpl.nasa.gov/cad.api?des=2020&date-min=1996-09-29&date-max=2126-09-29&dist-max=0.3
    retrieved Sep 29, 2026, 02:27 AM UTC
    PD-USG
    NASA/JPL CNEOS, Close-Approach Data (accessed 2026-09-29).
    https://ssd-api.jpl.nasa.gov/cad.api?des=2020&date-min=1996-09-29&date-max=2126-09-29&dist-max=0.3
    2026-09-29 02:27:24 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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 02:27 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:ob&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    2026-09-29 02:27:24 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
    Live commanding is outside the safety policy. Route through your licensed ops chain.
  • Replace STK / GMAT for flight-grade analysis
    Sandbox sims are first-pass trade studies. High-fidelity stays in licensed tools.
  • Write your dissertation chapter
    We accelerate research; we don’t replace authorship. Briefs are drafts, not submissions.
  • Peer-review a paper
    We cross-check claims against current data. Peer review is human.