{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-08-24","schedule":[{"end":"2025-08-25T01:55Z","end_local":"04:55","hours":8.83,"mean_quality":0.0,"start":"2025-08-24T17:05Z","start_local":"20:05","target":null},{"end":"2025-08-25T02:00Z","end_local":"05:00","hours":0.08,"mean_quality":0.36,"start":"2025-08-25T01:55Z","start_local":"04:55","target":"M42"},{"end":"2025-08-25T03:40Z","end_local":"06:40","hours":1.67,"mean_quality":0.0,"start":"2025-08-25T02:00Z","start_local":"05:00","target":null}],"targets":[{"best_window":{"end":"2025-08-25T02:00Z","end_local":"05:00","hours":0.08,"label":"marginal","mean_quality":0.36,"start":"2025-08-25T01:55Z","start_local":"04:55"},"dec":-5.3876,"moon_separation":88.8,"name":"M42","quality_hours":0.21,"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":3,"score_weather":76,"transit":{"airmass":1.47,"alt":42.9,"az":180.8,"t":"2025-08-25T05:45Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-08-25T01:55Z","end_local":"04:55","hours":8.83,"label":"unusable","mean_quality":0.0,"start":"2025-08-24T17:05Z","start_local":"20:05"},{"end":"2025-08-25T02:00Z","end_local":"05:00","hours":0.08,"label":"marginal","mean_quality":0.36,"start":"2025-08-25T01:55Z","start_local":"04:55"},{"end":"2025-08-25T03:15Z","end_local":"06:15","hours":1.25,"label":"poor","mean_quality":0.15,"start":"2025-08-25T02:00Z","start_local":"05:00"},{"end":"2025-08-25T03:40Z","end_local":"06:40","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2025-08-25T03:15Z","start_local":"06:15"}]}],"unscheduled":[],"warnings":[]}