{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:ZBEUVATSKAL4AKFMC4PGLZYUDG","short_pith_number":"pith:ZBEUVATS","schema_version":"1.0","canonical_sha256":"c8494a82725017c028ac171e65e7141991d90543809f9032c473877dcf8f3983","source":{"kind":"arxiv","id":"1409.6388","version":1},"attestation_state":"computed","paper":{"title":"Reconnaissance of the HR 8799 Exosolar System II: Astrometry and Orbital Motion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Sivaramakrishnan, A. Veicht, C. Baranec, C. Beichman, C. Zhai, D. Brenner, D. Hale, D. King, E. Cady, E. Rice, E. R. Ligon, F. Vescelus, G. Vasisht, I. R. Parry, J. E. Roberts, J. Hoffmann, J. K. Wallace, J. R. Crepp, J. R. Graham, L. C. Roberts Jr., L. Hillenbrand, L. Pueyo, M. Shao, N. Zimmerman, R. Burruss, R. Dekany, R. Nilsson, R. Oppenheimer, R. Soummer, S. Hinkley, S. Luszcz-Cook, T. Lockhart, T. Truong","submitted_at":"2014-09-23T02:19:02Z","abstract_excerpt":"We present an analysis of the orbital motion of the four sub-stellar objects orbiting HR8799. Our study relies on the published astrometric history of this system augmented with an epoch obtained with the Project 1640 coronagraph + Integral Field Spectrograph (IFS) installed at the Palomar Hale telescope. We first focus on the intricacies associated with astrometric estimation using the combination of an Extreme Adaptive Optics system (PALM-3000), a coronagraph and an IFS. We introduce two new algorithms. The first one retrieves the stellar focal plane position when the star is occulted by a c"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1409.6388","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-23T02:19:02Z","cross_cats_sorted":[],"title_canon_sha256":"29cb9351066b6945e1b162a4b7876ef3cccd0711cce51241351efd2822175f2c","abstract_canon_sha256":"1a1a8d7e3412f95932aff9b7aed089159a521246353f6a34cbe19de0d68fc2d8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:58.881628Z","signature_b64":"gagVjrfgbpi9xIzwTPRNA3fjC+MqV6GKWLeMRdGffsB0MsXNV7QXfy6RcXn/iOtu3T462RMinb2ftUmADDENCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c8494a82725017c028ac171e65e7141991d90543809f9032c473877dcf8f3983","last_reissued_at":"2026-05-18T01:41:58.881137Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:58.881137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Reconnaissance of the HR 8799 Exosolar System II: Astrometry and Orbital Motion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Sivaramakrishnan, A. Veicht, C. Baranec, C. Beichman, C. Zhai, D. Brenner, D. Hale, D. King, E. Cady, E. Rice, E. R. Ligon, F. Vescelus, G. Vasisht, I. R. Parry, J. E. Roberts, J. Hoffmann, J. K. Wallace, J. R. Crepp, J. R. Graham, L. C. Roberts Jr., L. Hillenbrand, L. Pueyo, M. Shao, N. Zimmerman, R. Burruss, R. Dekany, R. Nilsson, R. Oppenheimer, R. Soummer, S. Hinkley, S. Luszcz-Cook, T. Lockhart, T. Truong","submitted_at":"2014-09-23T02:19:02Z","abstract_excerpt":"We present an analysis of the orbital motion of the four sub-stellar objects orbiting HR8799. Our study relies on the published astrometric history of this system augmented with an epoch obtained with the Project 1640 coronagraph + Integral Field Spectrograph (IFS) installed at the Palomar Hale telescope. We first focus on the intricacies associated with astrometric estimation using the combination of an Extreme Adaptive Optics system (PALM-3000), a coronagraph and an IFS. We introduce two new algorithms. The first one retrieves the stellar focal plane position when the star is occulted by a c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6388","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1409.6388","created_at":"2026-05-18T01:41:58.881208+00:00"},{"alias_kind":"arxiv_version","alias_value":"1409.6388v1","created_at":"2026-05-18T01:41:58.881208+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6388","created_at":"2026-05-18T01:41:58.881208+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZBEUVATSKAL4","created_at":"2026-05-18T12:28:59.999130+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZBEUVATSKAL4AKFM","created_at":"2026-05-18T12:28:59.999130+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZBEUVATS","created_at":"2026-05-18T12:28:59.999130+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ZBEUVATSKAL4AKFMC4PGLZYUDG","json":"https://pith.science/pith/ZBEUVATSKAL4AKFMC4PGLZYUDG.json","graph_json":"https://pith.science/api/pith-number/ZBEUVATSKAL4AKFMC4PGLZYUDG/graph.json","events_json":"https://pith.science/api/pith-number/ZBEUVATSKAL4AKFMC4PGLZYUDG/events.json","paper":"https://pith.science/paper/ZBEUVATS"},"agent_actions":{"view_html":"https://pith.science/pith/ZBEUVATSKAL4AKFMC4PGLZYUDG","download_json":"https://pith.science/pith/ZBEUVATSKAL4AKFMC4PGLZYUDG.json","view_paper":"https://pith.science/paper/ZBEUVATS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1409.6388&json=true","fetch_graph":"https://pith.science/api/pith-number/ZBEUVATSKAL4AKFMC4PGLZYUDG/graph.json","fetch_events":"https://pith.science/api/pith-number/ZBEUVATSKAL4AKFMC4PGLZYUDG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZBEUVATSKAL4AKFMC4PGLZYUDG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZBEUVATSKAL4AKFMC4PGLZYUDG/action/storage_attestation","attest_author":"https://pith.science/pith/ZBEUVATSKAL4AKFMC4PGLZYUDG/action/author_attestation","sign_citation":"https://pith.science/pith/ZBEUVATSKAL4AKFMC4PGLZYUDG/action/citation_signature","submit_replication":"https://pith.science/pith/ZBEUVATSKAL4AKFMC4PGLZYUDG/action/replication_record"}},"created_at":"2026-05-18T01:41:58.881208+00:00","updated_at":"2026-05-18T01:41:58.881208+00:00"}