{"discovery":{"qdrant_configured":true,"strategy":"lexical"},"facets":{"access":{"free":1},"modality":{"gnss":1,"orbital":1},"provider":{"uscg":1},"tier":{"product":1}},"query":{"access":null,"all_weather":null,"bbox":null,"datetime":null,"limit":null,"max_gsd":null,"modality":"gnss","night":null,"offset":null,"provider":null,"q":null,"sort":null,"tasking":null,"tier":null},"results":[{"access":"free","access_methods":[{"kind":"https","notes":"Catalog entry reviewed 2026-09-29; start denotes catalog inclusion, not archive inception. Bounding box is nominal scope, not survey coverage. Follow source inventories, terms and formats. Discovery only; no live footprint adapter is supplied for this collection.","url":"https://www.navcen.uscg.gov/gps-nanus-almanacs-opsadvisories-sof"}],"all_weather":false,"bbox":[-180.0,-90.0,180.0,90.0],"category":"places","end":null,"formats":["SEM","YUMA"],"gsd_m":null,"id":"uscg-gps-almanacs","instruments":["Published navigation almanacs"],"keywords":["space","electromagnetic","navigation"],"latency_hours":null,"level":"L4","license":"us-public-domain","modalities":["gnss","orbital"],"night":false,"platforms":["GPS constellation"],"pricing":null,"provider":"uscg","provider_name":"US Coast Guard Navigation Center","revisit_hours":null,"score":1.0,"start":"2026-09-29","summary":"Published GPS almanacs and satellite health information for PNT context. Almanacs are approximate orbit parameters, not precision ephemerides.","tasking":false,"tier":"product","title":"GPS Almanacs and Operational Advisories"}],"returned":1,"total":1}