{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-10-10","schedule":[{"end":"2025-10-11T04:30Z","end_local":"07:30","hours":12.75,"mean_quality":0.0,"start":"2025-10-10T15:45Z","start_local":"18:45","target":null}],"targets":[{"best_window":null,"dec":-5.3876,"moon_separation":35.9,"name":"M42","quality_hours":0.14,"ra":83.8201,"resolved":{"common_name":"Great Orion Nebula","dec":-5.3876,"name":"M 42","ra":83.8201,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M42","source":"sesame","type":"HII","type_text":"HII region \u2014 a star-forming nebula"},"score":1,"score_astronomy":13,"score_weather":10,"transit":{"airmass":1.47,"alt":42.9,"az":180.7,"t":"2025-10-11T02:40Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-10-10T22:55Z","end_local":"01:55","hours":7.17,"label":"unusable","mean_quality":0.0,"start":"2025-10-10T15:45Z","start_local":"18:45"},{"end":"2025-10-11T00:00Z","end_local":"03:00","hours":1.08,"label":"poor","mean_quality":0.13,"start":"2025-10-10T22:55Z","start_local":"01:55"},{"end":"2025-10-11T04:30Z","end_local":"07:30","hours":4.5,"label":"unusable","mean_quality":0.0,"start":"2025-10-11T00:00Z","start_local":"03:00"}]}],"unscheduled":[{"name":"M42","why":"no usable window tonight"}],"warnings":[]}