{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.orbit","code":"thing-q4130","url":"https://ver.cy/models/thing/q4130/","name":"orbit","alternateNames":["retrograde motion","retrograde orbit","osculating orbit","halo orbit","transatmospheric orbit","EEO","planetocentric orbit","inclined orbit","Lissajous orbit","frozen orbit","interplanetary transport network","horseshoe orbit"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.QLT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"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.","purpose":"Let an agent explain orbits by physics, elements, types and applications in astronomy and spaceflight, including space debris and sustainability.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Gravity-bound path","Described by orbital elements","Periodic for bound orbits","Many practical types"],"structure":{"bundles":[{"id":"physics","name":"Physics","description":"Laws.","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.","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.","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.","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"}]}]}]}]},"agentConduct":{"may":["Compute, predict and report orbits from published orbital elements.","Track objects in orbit to warn of collision risks."],"mustNot":["Manoeuvre a spacecraft in a way that creates collision risks or debris.","Use orbital tracking to target or interfere with other operators' satellites.","Publish predictions of re-entry or collision as certain when they are uncertain."],"requiresHuman":["Manoeuvring or deorbiting a spacecraft.","Issuing public warnings of re-entry over populated areas."]},"ethics":{"considerations":["Orbits are a shared, finite resource; debris threatens all users of space.","Satellite services such as navigation and weather depend on safe orbits."],"affectedParties":["Satellite operators","People who rely on satellite services","People under re-entry paths"]},"owners":{"steward":"Nobody owns an orbit; states license operators and international bodies coordinate orbital slots.","roles":[],"masterSystems":["National registries of space objects","UN Register of Objects Launched into Outer Space"]},"relations":[{"target":"Q193139","type":"parent","note":"registry parent class"},{"target":"trajectory","type":"related","note":"category"},{"target":"conic section","type":"related","note":"geometry"},{"target":"Kepler laws","type":"related","note":"laws"},{"target":"axis of rotation","type":"related","note":"rotation context"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.orbit","Wikidata: Q4130 (https://www.wikidata.org/wiki/Q4130)"]},"properties":{"applicability":"not-applicable","items":[]},"recognition":{"applicability":"optional","items":["Ellipses around a central body","Satellite ground tracks","Suborbital flights do not complete an orbit","Not visible as a line; shown in diagrams, satellite tracks and planetary motions."]},"capabilities":{"applicability":"required","items":["explain Kepler laws and orbital elements","classify satellite orbits","find orbital data for objects","understand space debris issues"]},"hazards":{"applicability":"required","items":["Collision and debris risks","Confusing orbit types","Outdated orbital elements"]},"interfaces":{"applicability":"required","items":["UN Outer Space Treaty","ITU rules for orbital slots and spectrum","Space debris mitigation guidelines"]},"context":{"applicability":"required","items":["Astronomy, spaceflight and satellite services.","low Earth orbits","geostationary and geosynchronous orbits","polar and sun-synchronous orbits","retrograde orbits","halo and Lagrange point orbits"]}},"sources":[{"title":"Wikidata item Q4130: orbit","url":"https://www.wikidata.org/wiki/Q4130","note":"identity and sense of the item"},{"title":"Wikipedia: Orbit","url":"https://en.wikipedia.org/wiki/Orbit","note":"general description of the item"}],"openQuestions":["Should orbit types be separate entries?","How should orbital catalogues be linked?","How should debris data be linked?"],"resources":{"spec":"/models/things/publications/thing-q4130/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q4130/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T14:24:29Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:59+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}