{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:CVEFYTYU4TEGGPUKQKCLBHBFDB","short_pith_number":"pith:CVEFYTYU","schema_version":"1.0","canonical_sha256":"15485c4f14e4c8633e8a8284b09c251851cd6a5fe94843790ccc7c85b3d3e4af","source":{"kind":"arxiv","id":"2211.16727","version":1},"attestation_state":"computed","paper":{"title":"JWST NIRCam Defocused Imaging: Photometric Stability Performance and How it Can Sense Mirror Tilts","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.IM","authors_text":"Alden Jurling, Alicia Canipe, Brian Brooks, Bryan Hilbert, Charles Beichman, David Ciardi, Doug Kelly, Eiichi Egami, Everett Schlawin, Jarron Leisenring, John Stansberry, J. Scott Knight, Karl Misselt, Kayli Glidic, Keith Baka, Lee D. Feinberg, Marcia Rieke, Mario Gennaro, Marshall D. Perrin, Martha Boyer, Matteo Correnti, Michael W. McElwain, N\\'estor Espinoza, Nicholas Bond, Nikolay K. Nikolov, Sarah Kendrew, Thomas Beatty, Thomas P. Greene","submitted_at":"2022-11-30T04:23:33Z","abstract_excerpt":"We use JWST NIRCam short wavelength photometry to capture a transit lightcurve of the exoplanet HAT-P-14 b to assess performance as part of instrument commissioning. The short wavelength precision is 152 ppm per 27 second integration as measured over the full time series compared to a theoretical limit of 107 ppm, after corrections to spatially correlated 1/f noise. Persistence effects from charge trapping are well fit by an exponential function with short characteristic timescales, settling on the order of 5-15 minutes. The short wavelength defocused photometry is also uniquely well suited to"},"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":"2211.16727","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-11-30T04:23:33Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"ed097bb3208ad691b48964928bcb99a352ac90186aca06920e01157f83577ce6","abstract_canon_sha256":"a3e4cedadcd09eb0041c69fbb58c70949c43c8105889c50b89d81e2b5cd876a5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:39:26.364883Z","signature_b64":"MD21m579OtkJd8wpsaCuTtSdLS8utIIaxRMdjFRwWYHc+OSwKFsQ82fEdUwzU4WUKkM+dnIHL2nCWwTyayI7CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15485c4f14e4c8633e8a8284b09c251851cd6a5fe94843790ccc7c85b3d3e4af","last_reissued_at":"2026-07-05T05:39:26.364409Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:39:26.364409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"JWST NIRCam Defocused Imaging: Photometric Stability Performance and How it Can Sense Mirror Tilts","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.IM","authors_text":"Alden Jurling, Alicia Canipe, Brian Brooks, Bryan Hilbert, Charles Beichman, David Ciardi, Doug Kelly, Eiichi Egami, Everett Schlawin, Jarron Leisenring, John Stansberry, J. Scott Knight, Karl Misselt, Kayli Glidic, Keith Baka, Lee D. Feinberg, Marcia Rieke, Mario Gennaro, Marshall D. Perrin, Martha Boyer, Matteo Correnti, Michael W. McElwain, N\\'estor Espinoza, Nicholas Bond, Nikolay K. Nikolov, Sarah Kendrew, Thomas Beatty, Thomas P. Greene","submitted_at":"2022-11-30T04:23:33Z","abstract_excerpt":"We use JWST NIRCam short wavelength photometry to capture a transit lightcurve of the exoplanet HAT-P-14 b to assess performance as part of instrument commissioning. The short wavelength precision is 152 ppm per 27 second integration as measured over the full time series compared to a theoretical limit of 107 ppm, after corrections to spatially correlated 1/f noise. Persistence effects from charge trapping are well fit by an exponential function with short characteristic timescales, settling on the order of 5-15 minutes. The short wavelength defocused photometry is also uniquely well suited to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.16727","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2211.16727/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2211.16727","created_at":"2026-07-05T05:39:26.364475+00:00"},{"alias_kind":"arxiv_version","alias_value":"2211.16727v1","created_at":"2026-07-05T05:39:26.364475+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.16727","created_at":"2026-07-05T05:39:26.364475+00:00"},{"alias_kind":"pith_short_12","alias_value":"CVEFYTYU4TEG","created_at":"2026-07-05T05:39:26.364475+00:00"},{"alias_kind":"pith_short_16","alias_value":"CVEFYTYU4TEGGPUK","created_at":"2026-07-05T05:39:26.364475+00:00"},{"alias_kind":"pith_short_8","alias_value":"CVEFYTYU","created_at":"2026-07-05T05:39:26.364475+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/CVEFYTYU4TEGGPUKQKCLBHBFDB","json":"https://pith.science/pith/CVEFYTYU4TEGGPUKQKCLBHBFDB.json","graph_json":"https://pith.science/api/pith-number/CVEFYTYU4TEGGPUKQKCLBHBFDB/graph.json","events_json":"https://pith.science/api/pith-number/CVEFYTYU4TEGGPUKQKCLBHBFDB/events.json","paper":"https://pith.science/paper/CVEFYTYU"},"agent_actions":{"view_html":"https://pith.science/pith/CVEFYTYU4TEGGPUKQKCLBHBFDB","download_json":"https://pith.science/pith/CVEFYTYU4TEGGPUKQKCLBHBFDB.json","view_paper":"https://pith.science/paper/CVEFYTYU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2211.16727&json=true","fetch_graph":"https://pith.science/api/pith-number/CVEFYTYU4TEGGPUKQKCLBHBFDB/graph.json","fetch_events":"https://pith.science/api/pith-number/CVEFYTYU4TEGGPUKQKCLBHBFDB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CVEFYTYU4TEGGPUKQKCLBHBFDB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CVEFYTYU4TEGGPUKQKCLBHBFDB/action/storage_attestation","attest_author":"https://pith.science/pith/CVEFYTYU4TEGGPUKQKCLBHBFDB/action/author_attestation","sign_citation":"https://pith.science/pith/CVEFYTYU4TEGGPUKQKCLBHBFDB/action/citation_signature","submit_replication":"https://pith.science/pith/CVEFYTYU4TEGGPUKQKCLBHBFDB/action/replication_record"}},"created_at":"2026-07-05T05:39:26.364475+00:00","updated_at":"2026-07-05T05:39:26.364475+00:00"}