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The timing analysis of 6.7 yr of GBI radio data and of 6 yr of Fermi-LAT GeV gamma-ray data both have found two close periodicities P1(GBI) = 26.49 \\pm 0.07 d, P2(GBI)=26.92 \\pm 0.07 d and P1(gamma)=26.48 \\pm 0.08 d, P2(gamma) = 26.99 \\pm 0.08 d. Aims: The system LSI+61303 is the object of several continuous monitoring programs at low and high energies. The frequency difference between f1 and f2 of only 0.0006 d(-1) requires long-term monitoring because the frequency resolution in timing analysis is related to the inverse of"},"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":"1502.00934","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-03T17:20:13Z","cross_cats_sorted":[],"title_canon_sha256":"df739203f216b7361754f7ff0bc37411cf19e0b46e26c0314695ae20ed6b32ca","abstract_canon_sha256":"7164af51d29a04f54a27ca7d8a96396364fdaeee9386dfde2c5f280eaf28088d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:48.674871Z","signature_b64":"B1tRrs/iCQ5afQ2Twwo+CuzhHVTVNG3f469TUYBxvX73dXAkJv5ydr3zna+lO1Bo3fEmCyCX+jkNmEzzrMtWCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a60a8bab1ada7821acc31d859fbb71ec5e7615c17d16dfbe3e4aca28c95ac18a","last_reissued_at":"2026-05-18T02:25:48.674248Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:48.674248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Long-term OVRO monitoring of LSI+61303: confirmation of the two close periodicities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"F. 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