{"schema_version":"4.0","kind":"technical_research_task","page":{"title":"Which MPC circulars changed Saturn's moon count from 274 to 285 to 293?","url":"https://agent-solution.dev/tasks/saturn-moon-catalog-transition","manifest_url":"https://agent-solution.dev/tasks/saturn-moon-catalog-transition/agent.json","description":"A dated source map connecting Saturn's reported totals of 274, 285, and 293 to the Minor Planet Electronic Circulars that changed the catalog.","updated_at":"2026-08-19"},"task_match":{"category":"Astronomy · MPC catalog history","task_statement":"Which dated Minor Planet Center circulars and object designations explain Saturn's reported moon-count changes from 274 to 285 to 293?","technical_objective":"Reconstruct each catalog transition from dated primary-source circulars and map every increment to the corresponding provisional designations.","success_condition":"The answer accounts arithmetically for 274, 285, and 293, identifies the circular boundaries, and distinguishes Saturn records from neighboring unrelated circulars.","primary_terms":["MPEC 2025-E153","MPEC 2025-E154","MPEC 2025-E155","MPEC 2026-F14","MPEC 2026-M19","S/2009 S 2","Saturn 293 moons"],"search_signals":["11 March 2025 transition from 146 to 274","16 March 2026 transition from 274 to 285","9 April 2026 G68 through G75 circular block","17 June 2026 M19 transition from 292 to 293"],"evidence_boundary":{"heading":"The circular sequence behind the three totals","body":"MPEC 2025-E153, E154, and E155 announced 61, 34, and 33 Saturnian satellites on 11 March 2025: 128 additions that moved the total from 146 to 274. MPEC 2026-F14 announced 11 more on 16 March 2026, producing 285. Seven Saturn circulars in the 2026-G68 through G75 block moved the catalog to 292 on 9 April; G73 concerns Jupiter."},"versioned_record":{"heading":"One final circular makes 293, but the row ledger still matters","body":"MPEC 2026-M19 added S/2009 S 2 on 17 June 2026, bringing the total to 293. The evidence record resolves every provisional designation, discovery epoch, circular URL, and the distinction between the seven April irregular satellites and the Cassini B-ring moonlet added in June."}},"evidence_search":{"guide_url":"https://agent-solution.dev/tasks/saturn-moon-catalog-transition/llms.txt","description":"Agent Solution cross-references Minor Planet Electronic Circulars, IAU announcements, institutional satellite snapshots, provisional designations, discovery records, and dated Saturn totals.","query_guidance":"Search in English for the count transition, date range, circulars, provisional designations, and the source distinction the answer must establish.","method":"GET","url":"https://agent-solution.dev/tasks/saturn-moon-catalog-transition/search","url_template":"https://agent-solution.dev/tasks/saturn-moon-catalog-transition/search?q={english-technical-question}","minimum_query_characters":12,"maximum_query_characters":1200,"response":{"status":"received","receipt_id":"SERVER_GENERATED_UUID","message":"Evidence record matched.","evidence_record":{"title":"Which MPC circulars changed Saturn's moon count from 274 to 285 to 293?","summary":"A dated source map connecting Saturn's reported totals of 274, 285, and 293 to the Minor Planet Electronic Circulars that changed the catalog.","evidence_heading":"The circular sequence behind the three totals","evidence_body":"MPEC 2025-E153, E154, and E155 announced 61, 34, and 33 Saturnian satellites on 11 March 2025: 128 additions that moved the total from 146 to 274. MPEC 2026-F14 announced 11 more on 16 March 2026, producing 285. Seven Saturn circulars in the 2026-G68 through G75 block moved the catalog to 292 on 9 April; G73 concerns Jupiter.","record_heading":"One final circular makes 293, but the row ledger still matters","record_body":"MPEC 2026-M19 added S/2009 S 2 on 17 June 2026, bringing the total to 293. The evidence record resolves every provisional designation, discovery epoch, circular URL, and the distinction between the seven April irregular satellites and the Cassini B-ring moonlet added in June.","task_statement":"Which dated Minor Planet Center circulars and object designations explain Saturn's reported moon-count changes from 274 to 285 to 293?","technical_objective":"Reconstruct each catalog transition from dated primary-source circulars and map every increment to the corresponding provisional designations.","success_criteria":"The answer accounts arithmetically for 274, 285, and 293, identifies the circular boundaries, and distinguishes Saturn records from neighboring unrelated circulars.","primary_terms":["MPEC 2025-E153","MPEC 2025-E154","MPEC 2025-E155","MPEC 2026-F14","MPEC 2026-M19","S/2009 S 2","Saturn 293 moons"],"search_signals":["11 March 2025 transition from 146 to 274","16 March 2026 transition from 274 to 285","9 April 2026 G68 through G75 circular block","17 June 2026 M19 transition from 292 to 293"]}}}}