{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-10-23","schedule":[{"end":"2025-10-24T04:45Z","end_local":"07:45","hours":13.33,"mean_quality":0.0,"start":"2025-10-23T15:25Z","start_local":"18:25","target":null}],"targets":[{"best_window":null,"dec":-5.3876,"moon_separation":138.2,"name":"M42","quality_hours":0.09,"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":2,"score_astronomy":89,"score_weather":2,"transit":{"airmass":1.47,"alt":42.9,"az":179.4,"t":"2025-10-24T01:45Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-10-24T03:00Z","end_local":"06:00","hours":11.58,"label":"unusable","mean_quality":0.0,"start":"2025-10-23T15:25Z","start_local":"18:25"},{"end":"2025-10-24T04:20Z","end_local":"07:20","hours":1.33,"label":"poor","mean_quality":0.06,"start":"2025-10-24T03:00Z","start_local":"06:00"},{"end":"2025-10-24T04:45Z","end_local":"07:45","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2025-10-24T04:20Z","start_local":"07:20"}]}],"unscheduled":[{"name":"M42","why":"no usable window tonight"}],"warnings":[]}
