{ "model": { "rank": 2139, "code": "thing-q4130", "model_id": "vr.tr.orbit", "name": "orbit", "purpose": "Let an agent explain orbits by physics, elements, types and applications in astronomy and spaceflight, including space debris and sustainability.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QLT", "industry": "", "version": "", "url": "/models/thing/q4130/", "tier": 2, "score": 114, "payload": { "layer": "wikidata", "aliases": [ "retrograde motion", "retrograde orbit", "osculating orbit", "halo orbit", "transatmospheric orbit", "EEO", "planetocentric orbit", "inclined orbit", "Lissajous orbit", "frozen orbit", "interplanetary transport network", "horseshoe orbit", "supersynchronous orbit", "planetary orbit", "lunar orbit", "circular orbit", "elliptic orbit", "distant retrograde orbit", "box orbit", "nodal period", "near-equatorial orbit", "highly elliptical orbit", "gate orbit", "galactocentric orbit", "astrocentric orbit", "non-inclined orbit", "Rosetta", "subsynchronous orbit", "parking orbit", "synchronous orbit", "near-rectilinear halo orbit", "cytherocentric orbit", "recurrent orbit", "mid-inclination orbit", "inclined elliptic orbit", "innermost stable circular orbit", "transfer orbit", "hadeosynchronous orbit", "cytherosynchronous orbit", "cronosynchronous orbit" ], "aliasCount": 53, "merged": 53, "knownIn": 114, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q4130", "url": "https://www.wikidata.org/wiki/Q4130", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T14:24:29Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q4130", "registryId": "vr.tr.orbit", "name": "orbit", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q4130/", "model": { "registry_id": "vr.tr.orbit", "name": "orbit", "purpose": "Let an agent explain orbits by physics, elements, types and applications in astronomy and spaceflight, including space debris and sustainability.", "definition": "The curved path of an object around a star, planet or other body under gravity, usually approximated by an ellipse as described by Kepler laws, and characterised by orbital elements; types include low Earth, geostationary, polar, sun-synchronous, retrograde and halo orbits around Lagrange points.", "what_it_is_for": "Astronomy, spaceflight and satellite services.", "affordances": [ "explain Kepler laws and orbital elements", "classify satellite orbits", "find orbital data for objects", "understand space debris issues" ], "distinguishing_features": [ "Gravity-bound path", "Described by orbital elements", "Periodic for bound orbits", "Many practical types" ], "appearance": "Not visible as a line; shown in diagrams, satellite tracks and planetary motions.", "visual_identification": [ "Ellipses around a central body", "Satellite ground tracks", "Suborbital flights do not complete an orbit" ], "physical_properties": [], "families_and_kinds": [ "low Earth orbits", "geostationary and geosynchronous orbits", "polar and sun-synchronous orbits", "retrograde orbits", "halo and Lagrange point orbits" ], "related_models": [ { "relation": "is a kind of", "target": "trajectory", "why": "category" }, { "relation": "is shaped as", "target": "conic section", "why": "geometry" }, { "relation": "is described by", "target": "Kepler laws", "why": "laws" }, { "relation": "is related to", "target": "axis of rotation", "why": "rotation context" } ], "identifiers": [], "standards_and_regulation": [ "UN Outer Space Treaty", "ITU rules for orbital slots and spectrum", "Space debris mitigation guidelines" ], "failure_modes_and_hazards": [ "Collision and debris risks", "Confusing orbit types", "Outdated orbital elements" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "physics", "name": "Physics", "description": "Laws.", "rationale": "Gravity shapes orbits.", "layers": [ { "id": "kepler", "name": "Kepler", "description": "Kepler laws.", "findings": [ { "id": "kepler-finding", "name": "Kepler", "description": "Kepler laws.", "questions": [ { "text": "How do Kepler laws describe this orbit?", "kind": "definition" }, { "text": "What is the period given the semi-major axis?", "kind": "measurement" } ] } ] }, { "id": "elements", "name": "Elements", "description": "Orbital elements.", "findings": [ { "id": "elements-finding", "name": "Elements", "description": "Orbital elements.", "questions": [ { "text": "What are the orbital elements of this object, according to catalogues?", "kind": "provenance" }, { "text": "How often are they updated?", "kind": "provenance" } ] } ] } ] }, { "id": "types", "name": "Types", "description": "Satellite orbits.", "rationale": "Types serve purposes.", "layers": [ { "id": "classify", "name": "Classify", "description": "Orbit type.", "findings": [ { "id": "classify-finding", "name": "Classify", "description": "Orbit type.", "questions": [ { "text": "Is this a low Earth, geostationary, polar or other orbit?", "kind": "definition" }, { "text": "Why was it chosen for this mission?", "kind": "provenance" } ] } ] }, { "id": "special", "name": "Special", "description": "Halo and retrograde.", "findings": [ { "id": "special-finding", "name": "Special", "description": "Special orbits.", "questions": [ { "text": "What are halo orbits around Lagrange points and retrograde orbits?", "kind": "definition" }, { "text": "Which missions use them?", "kind": "provenance" } ] } ] } ] }, { "id": "sustainability", "name": "Sustainability", "description": "Debris.", "rationale": "Space must stay usable.", "layers": [ { "id": "debris", "name": "Debris", "description": "Space debris.", "findings": [ { "id": "debris-finding", "name": "Debris", "description": "Space debris.", "questions": [ { "text": "How much debris is in this orbital region, according to space agencies?", "kind": "provenance" }, { "text": "Which mitigation rules apply?", "kind": "provenance" } ] } ] }, { "id": "reentry", "name": "Reentry", "description": "Reentries.", "findings": [ { "id": "reentry-finding", "name": "Reentry", "description": "Reentries.", "questions": [ { "text": "Is an object predicted to re-enter, and what do agencies say about the risk?", "kind": "provenance" }, { "text": "How should risk be communicated calmly?", "kind": "action" } ] } ] } ] }, { "id": "observing", "name": "Observing", "description": "Watching satellites.", "rationale": "Satellites can be seen.", "layers": [ { "id": "passes", "name": "Passes", "description": "Satellite passes.", "findings": [ { "id": "passes-finding", "name": "Passes", "description": "Satellite passes.", "questions": [ { "text": "When will the space station or a satellite pass overhead here?", "kind": "provenance" }, { "text": "Which tools predict passes?", "kind": "provenance" } ] } ] }, { "id": "senses", "name": "Senses", "description": "Disambiguation.", "findings": [ { "id": "senses-finding", "name": "Senses", "description": "Other senses.", "questions": [ { "text": "Is the eye socket (orbit) or a sphere of influence meant?", "kind": "boundary" }, { "text": "Which entry fits?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should orbit types be separate entries?", "How should orbital catalogues be linked?", "How should debris data be linked?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a orbit, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain orbits by physics, elements, types and applications in astronomy and spaceflight, including space debris and sustainability.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: retrograde motion, retrograde orbit, osculating orbit, halo orbit, transatmospheric orbit, EEO, planetocentric orbit, inclined orbit, Lissajous orbit, frozen orbit, interplanetary transport network, horseshoe orbit.", "53 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 114 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a orbit, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "retrograde motion", "retrograde orbit", "osculating orbit", "halo orbit", "transatmospheric orbit", "EEO", "planetocentric orbit", "inclined orbit", "Lissajous orbit", "frozen orbit", "interplanetary transport network", "horseshoe orbit" ] } ], "standing": "Described in 114 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 53 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one orbit from another, and a orbit from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a orbit, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a orbit, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a orbit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a orbit, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a orbit, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a orbit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a orbit sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a orbit, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a orbit, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a orbit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a orbit from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a orbit, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a orbit, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a orbit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a orbit passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a orbit between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a orbit, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a orbit, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a orbit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a orbit, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a orbit is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a orbit, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a orbit, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a orbit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What orbit is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of orbit are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is orbit operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of orbit and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of orbit?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as orbit?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a orbit came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a orbit and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a orbit, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a orbit, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a orbit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a orbit is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a orbit, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a orbit, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a orbit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }