{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:PSOEKW3FODOZJTNCFGQXMIRC5C","short_pith_number":"pith:PSOEKW3F","schema_version":"1.0","canonical_sha256":"7c9c455b6570dd94cda229a1762222e88e86045c2d37ca77be600a25a0a608af","source":{"kind":"arxiv","id":"1906.12318","version":1},"attestation_state":"computed","paper":{"title":"Coverage Area Determination for Conical Fields of View Considering an Oblate Earth","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.IM","math.AG"],"primary_cat":"physics.space-ph","authors_text":"Camilla Colombo, Marco Nugnes, Massimo Tipaldi","submitted_at":"2019-06-28T17:24:57Z","abstract_excerpt":"This paper introduces a new analytical method for the determination of the coverage area modeling the Earth as an oblate ellipsoid of rotation. Starting from the knowledge of the satellite's position vector and the direction of the navigation antenna line of sight, the surface generated by the intersection of the oblate ellipsoid and the assumed conical field of view is decomposed in many ellipses, obtained by cutting the Earth's surface with every plane containing the navigation antenna line of sight. The geometrical parameters of each ellipse can be derived analytically together with the poi"},"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":"1906.12318","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2019-06-28T17:24:57Z","cross_cats_sorted":["astro-ph.EP","astro-ph.IM","math.AG"],"title_canon_sha256":"aa860f320e80113751e2f3787d4239172d2e4ab99db1f44d3e16e94e09ac5a3c","abstract_canon_sha256":"7bdf10dce678e2d5af4c11fbd4536caa4af680fab430c9788d2d2a388aa1747f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:58.678887Z","signature_b64":"b0N8FNGD0oGSyTr/svOO+mkewMGtzyOucIUt3z9tw9G9DsN447+tRq2yKVNMO8oyZmzCuUkY9aHYCINYjg6LAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c9c455b6570dd94cda229a1762222e88e86045c2d37ca77be600a25a0a608af","last_reissued_at":"2026-05-17T23:41:58.678130Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:58.678130Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Coverage Area Determination for Conical Fields of View Considering an Oblate Earth","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.IM","math.AG"],"primary_cat":"physics.space-ph","authors_text":"Camilla Colombo, Marco Nugnes, Massimo Tipaldi","submitted_at":"2019-06-28T17:24:57Z","abstract_excerpt":"This paper introduces a new analytical method for the determination of the coverage area modeling the Earth as an oblate ellipsoid of rotation. Starting from the knowledge of the satellite's position vector and the direction of the navigation antenna line of sight, the surface generated by the intersection of the oblate ellipsoid and the assumed conical field of view is decomposed in many ellipses, obtained by cutting the Earth's surface with every plane containing the navigation antenna line of sight. The geometrical parameters of each ellipse can be derived analytically together with the poi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.12318","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":"1906.12318","created_at":"2026-05-17T23:41:58.678243+00:00"},{"alias_kind":"arxiv_version","alias_value":"1906.12318v1","created_at":"2026-05-17T23:41:58.678243+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.12318","created_at":"2026-05-17T23:41:58.678243+00:00"},{"alias_kind":"pith_short_12","alias_value":"PSOEKW3FODOZ","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"PSOEKW3FODOZJTNC","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"PSOEKW3F","created_at":"2026-05-18T12:33:24.271573+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/PSOEKW3FODOZJTNCFGQXMIRC5C","json":"https://pith.science/pith/PSOEKW3FODOZJTNCFGQXMIRC5C.json","graph_json":"https://pith.science/api/pith-number/PSOEKW3FODOZJTNCFGQXMIRC5C/graph.json","events_json":"https://pith.science/api/pith-number/PSOEKW3FODOZJTNCFGQXMIRC5C/events.json","paper":"https://pith.science/paper/PSOEKW3F"},"agent_actions":{"view_html":"https://pith.science/pith/PSOEKW3FODOZJTNCFGQXMIRC5C","download_json":"https://pith.science/pith/PSOEKW3FODOZJTNCFGQXMIRC5C.json","view_paper":"https://pith.science/paper/PSOEKW3F","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1906.12318&json=true","fetch_graph":"https://pith.science/api/pith-number/PSOEKW3FODOZJTNCFGQXMIRC5C/graph.json","fetch_events":"https://pith.science/api/pith-number/PSOEKW3FODOZJTNCFGQXMIRC5C/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PSOEKW3FODOZJTNCFGQXMIRC5C/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PSOEKW3FODOZJTNCFGQXMIRC5C/action/storage_attestation","attest_author":"https://pith.science/pith/PSOEKW3FODOZJTNCFGQXMIRC5C/action/author_attestation","sign_citation":"https://pith.science/pith/PSOEKW3FODOZJTNCFGQXMIRC5C/action/citation_signature","submit_replication":"https://pith.science/pith/PSOEKW3FODOZJTNCFGQXMIRC5C/action/replication_record"}},"created_at":"2026-05-17T23:41:58.678243+00:00","updated_at":"2026-05-17T23:41:58.678243+00:00"}