Pith Number

pith:V75VURYJ

pith:2026:V75VURYJ73ITNCD6NRAD3D3ACW

not attested not anchored not stored refs resolved

Shape and spin axis determination of the Tianwen-2 target asteroid (469219) Kamo'oalewa from lightcurve inversion

Josef Hanu\v{s}, Marco Delbo, Roberto Bonamico

Lightcurve inversion yields convex shape model and spin pole at ecliptic (126, -16) degrees for asteroid Kamo'oalewa with 0.465-hour period

arxiv:2604.26734 v1 · 2026-04-29 · astro-ph.EP

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\usepackage{pith}
\pithnumber{V75VURYJ73ITNCD6NRAD3D3ACW}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

We derived a convex shape model and estimated the spin pole orientation. In the preferred solution, the pole is located at ecliptic coordinates λ, β = (126,-16) degrees, with a sidereal rotation period of P~0.465 h.

C2weakest assumption

The lightcurve inversion algorithm assumes a convex shape and that the available photometric data from multiple apparitions are sufficient to uniquely constrain the spin axis and period without significant aliasing or albedo effects.

C3one line summary

Convex shape model and spin pole at ecliptic (126, -16) degrees with 0.465-hour sidereal period derived for asteroid Kamo'oalewa from lightcurve inversion.

References

25 extracted · 25 resolved · 0 Pith anchors

[1] Binzel, R. P., Rivkin, A. S., Stuart, J., et al. 2004, Icarus, 170, 259 2004

[2] F., V okrouhlický, D., Rubincam, D 2006

[3] Chambers, K. C., Magnier, E. A., Metcalfe, N., et al. 2019, The Pan-STARRS1 Surveys 2019

[4] Cheng, A. F., Agrusa, H. F., Barbee, B. W., et al. 2023, Nature, 616, 457 2023

[5] E., Ziffer, J., Nesvorny, D., et al 2010

Cited by

1 paper in Pith

JWST Characterization of Earth Quasi-Satellite (469219) Kamo`oalewa

Receipt and verification

First computed	2026-06-24T14:15:58.992463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

affb5a4709fed136887e6c403d8f6015b8cfe838b12744d1ba8215150ca888df

Aliases

arxiv: 2604.26734 · arxiv_version: 2604.26734v1 · doi: 10.48550/arxiv.2604.26734 · pith_short_12: V75VURYJ73IT · pith_short_16: V75VURYJ73ITNCD6 · pith_short_8: V75VURYJ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/V75VURYJ73ITNCD6NRAD3D3ACW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: affb5a4709fed136887e6c403d8f6015b8cfe838b12744d1ba8215150ca888df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38aa6e3bc2b69d4ddd04b5bd0d5625bfc7f90586731a53d77e921068a6d5acb4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-04-29T14:34:50Z",
    "title_canon_sha256": "38c26b2859b369897c82242cf35b630fb06001ef7fd4b922b271494700b6a344"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.26734",
    "kind": "arxiv",
    "version": 1
  }
}