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, 11:37 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=2019+tu&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 11:37 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=2019+tu&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 11:37 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=2019+tu&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 11:37 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=2019+tu&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 11:37 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=2019+tu&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 11:37 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=2019+tu&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 11:37 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=2019+tu&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 11:37 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=2019+tu&phys-par=1&full-prec=1&discovery=1
retrieved Sep 29, 2026, 11:37 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

    Activity in White Dwarf Debris Disks II: WISE Mission Traces a Decade of Disk Evolution and Persistence

    2026
    Hiba Tu Noor, Jay Farihi, Scott J. Kenyon · 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2609.34868Read
  2. 2

    TEMPUS: Relativistic coordinate time scales for any solar-system body from arbitrary ephemerides

    2026
    Yan Seyffert, Agnès Fienga · 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2609.08979Read
  3. 3

    Elveslocation: A new approach for studying thunderstorm atmosphere

    2026
    S. A. Sharakin, R. E. Saraev · 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2609.13210Read
  4. 4

    Dust and Gas Transport in Substructured Nonideal MHD Wind-Launching Disks with Embedded Planets

    2026
    Chun-Yen Hsu, Zhi-Yun Li, Xiao Hu, et al. · Mon Not R Astron Soc (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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2607.20158Read
  5. 5

    A Search for Variability of Ultracool Dwarfs with the Zwicky Transient Facility

    2026
    Haomiao Huang, Shu Wang, Xiaodian Chen, 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2605.02216Read
  6. 6

    SPHEREx Ultracool Dwarf spectrophotometric Atlas (SUDA): Atmospheric and Fundamental Parameters of Ultracool Dwarfs

    2026
    Zhijun Tu, Shu Wang, Haomiao Huang, 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2604.26771Read
  7. 7

    A New Method of Measuring Magnetic Field Strength in Highly Structured Protostellar Envelopes

    2026
    Yisheng Tu, Xiaoyuan Yang, Zhi-Yun Li · 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2603.20515Read
  8. 8

    Accretion Rate Changes Detected in a Polluted White Dwarf

    2026
    Jay Farihi, Hiba Tu Noor, Carl Melis, 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2601.16253Read
  9. 9

    Open-Source High-Fidelity Orbit Estimation for Planetary Science and Space Situational Awareness Using the Tudat Software

    2025
    Luigi Gisolfi, Dominic Dirkx, Sam Fayolle, 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2510.23179Read
  10. 10

    Activity in White Dwarf Debris Disks I: Spitzer Legacy Reveals Variability Incompatible with the Canonical Model

    2025
    Hiba Tu Noor, Jay Farihi, Scott J. Kenyon, 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 AM UTC
    arXiv:2508.13119Read
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 r28w-f120
  • 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=2019+tu&phys-par=1&full-prec=1&discovery=1
    retrieved Sep 29, 2026, 11:37 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=2019+tu&phys-par=1&full-prec=1&discovery=1
    2026-09-29 11:37:50 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=2019&date-min=1996-09-29&date-max=2126-09-29&dist-max=0.3
    retrieved Sep 29, 2026, 11:37 AM UTC
    PD-USG
    NASA/JPL CNEOS, Close-Approach Data (accessed 2026-09-29).
    https://ssd-api.jpl.nasa.gov/cad.api?des=2019&date-min=1996-09-29&date-max=2126-09-29&dist-max=0.3
    2026-09-29 11:37:50 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    retrieved Sep 29, 2026, 11:37 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:tu&start=0&max_results=10&sortBy=submittedDate&sortOrder=descending
    2026-09-29 11:37:50 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
    We accelerate research; we don’t replace authorship. Briefs are drafts, not submissions.
  • Peer-review a paper
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