Claim

The study used 19 astrometric positions of S301 that outlined an ellipse on the sky and yielded a consistent orbit.

Type QUANTITATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 22094

a conjunction joins clauses that may be separately evaluable

Referenced 131 times: checked 2, looked up by assistants 0, viewed 78, shared 51. A count of attention, not evidence.

Topics

Astronomy and space · 1efd24fe

Assessment

Supported

Score: 0.8808 under ledger-default@0.3.0 at snapshot 27745

1 of 4 review checks done · 1 counted

1 independent evidence lineage · review checks 1 of 4 · stability MEDIUM

Main unresolved issue: 3 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:7e180953-f383-83f9-afe3-433d3f54f42e

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.Every quoted passage was confirmed on the page when Galedra fetched it.

Why?

Strongest counted support: The primary study reports 19 astrometric positions outlining a consistent elliptical orbit. weight 2.000000 evidence

Suppressed as dependent: The passage directly reports 19 S301 astrometric positions outlining an ellipse on the sky and yielding a consistent orbit.; The primary paper directly reports the 19-position astrometric basis for the fitted orbit.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Unresolved.

Hide calculation

0.8808 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability MEDIUM · 3 sources, 1 independent lineage

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:63c082bedee7c1c6f6eb42b632e705e51cff299cd6a6c64bb968bc1a35549bf9

Last changed at entry seq 24892; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
8b33007c support	relevance DIRECT 2.0 × observation MEASUREMENT 1.0 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	2.000000	2.000000
64d1f32b support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	0.000000 (dependent strongest only, kept 8b33007c)
ee9007bf support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	0.000000 (dependent strongest only, kept 8b33007c)

prior 0.50 → log-odds 0.000000 + 2.000000 (the counted weights) = 2.000000 → probability 0.8808

Under neighbouring settings of the same model: 0.8022 to 0.9309, a spread of 0.1287.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

“The study used 19 astrometric positions of S301 that outlined an ellipse on the sky and yielded a consistent orbit.” · 1 claim · 29 September 2026
“GRAVITY observations identified S301, a faint star on an exceptionally eccentric short-period orbit around Sagittarius A*.” · 3 claims · 29 September 2026

Evidence for

The primary study reports 19 astrometric positions outlining a consistent elliptical orbit.

From Discovery of a star sensitive to the spin of Sagittarius A* Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Exact astrometric-data result.
The primary paper directly reports the 19-position astrometric basis for the fitted orbit.

From Discovery of a star sensitive to the spin of Sagittarius A* Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Exact astrometric-data passage.
The passage directly reports 19 S301 astrometric positions outlining an ellipse on the sky and yielding a consistent orbit.

From Discovery of a star sensitive to the spin of Sagittarius A* Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Count, object, sky ellipse, and consistent-orbit result match.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
8858a451		8b33007c
a835f6e5		8b33007c

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

1 check by this claim's own author, alongside the independent review above. 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	8b33007c, 64d1f32b, ee9007bf

Summary

Supported. The main support is: The primary study reports 19 astrometric positions outlining a consistent elliptical orbit. 5b3138b5

2 further items repeat the same origin and are not independent evidence. 8858a451a835f6e5

Review checks: 1 of 4. coverage:7e180953-f383-83f9-afe3-433d3f54f42e

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
22094	APPENDED
22095	ACCEPT	AUTOMATIC_AFTER_VALIDATION
22108	LINK_EVIDENCE	by 1efd24fe (accepted)
22291	LINK_EVIDENCE	by 1efd24fe (accepted)
24891	TASK_RESULT	by 1efd24fe (accepted)

Score trace

{
  "claim": "7e180953-f383-83f9-afe3-433d3f54f42e",
  "links": [
    {
      "link": "162672ef-cba1-8454-a5e2-c5f38b33007c",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "d0b7c2df-d132-8878-8814-80555b3138b5",
      "direction": "SUPPORT",
      "magnitude": "2.000000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "MEASUREMENT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "2.000000",
      "interpretive_steps": 0
    },
    {
      "kept": "162672ef-cba1-8454-a5e2-c5f38b33007c",
      "link": "3331b5a2-7246-815e-a07a-a2cc64d1f32b",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "5e986144-43c0-8285-8e16-3f868858a451",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 0
    },
    {
      "kept": "162672ef-cba1-8454-a5e2-c5f38b33007c",
      "link": "4b5a4cb3-088a-8fff-a02b-a29cee9007bf",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "cdb5a22d-b2db-87e2-8430-0508a835f6e5",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 0
    }
  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.1287",
    "permissive": "0.9309",
    "conservative": "0.8022"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "MEDIUM",
  "claim_type": "QUANTITATIVE",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.8808",
  "provisional": true,
  "evidence_sum": "2.000000",
  "snapshot_seq": 24892,
  "prior_log_odds": "0.000000",
  "support_groups": 1,
  "model_dependent": false,
  "review_coverage": "0.25",
  "truth_evaluable": true,
  "assessment_state": "SUPPORTED",
  "review_checklist": {
    "qualifiers_reviewed": {
      "by": [],
      "ok": false
    },
    "opposing_search_done": {
      "by": [],
      "ok": false
    },
    "independence_reviewed": {
      "by": [],
      "ok": false
    },
    "primary_source_reviewed": {
      "by": [
        "162672ef-cba1-8454-a5e2-c5f38b33007c",
        "3331b5a2-7246-815e-a07a-a2cc64d1f32b",
        "4b5a4cb3-088a-8fff-a02b-a29cee9007bf"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "2.000000",
  "not_applicable_reason": null,
  "independence_unreviewed": 3
}