{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-08-28","schedule":[{"end":"2026-08-29T02:00Z","end_local":"05:00","hours":9.0,"mean_quality":0.0,"start":"2026-08-28T17:00Z","start_local":"20:00","target":null},{"end":"2026-08-29T02:05Z","end_local":"05:05","hours":0.08,"mean_quality":0.37,"start":"2026-08-29T02:00Z","start_local":"05:00","target":"M42"},{"end":"2026-08-29T03:45Z","end_local":"06:45","hours":1.67,"mean_quality":0.0,"start":"2026-08-29T02:05Z","start_local":"05:05","target":null}],"targets":[{"best_window":{"end":"2026-08-29T02:05Z","end_local":"05:05","hours":0.08,"label":"marginal","mean_quality":0.37,"start":"2026-08-29T02:00Z","start_local":"05:00"},"dec":-5.3876,"moon_separation":98.0,"name":"M42","quality_hours":0.29,"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":3,"score_astronomy":3,"score_weather":85,"transit":{"airmass":1.47,"alt":42.9,"az":180.7,"t":"2026-08-29T05:30Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-08-29T01:45Z","end_local":"04:45","hours":8.75,"label":"unusable","mean_quality":0.0,"start":"2026-08-28T17:00Z","start_local":"20:00"},{"end":"2026-08-29T02:00Z","end_local":"05:00","hours":0.25,"label":"poor","mean_quality":0.25,"start":"2026-08-29T01:45Z","start_local":"04:45"},{"end":"2026-08-29T02:05Z","end_local":"05:05","hours":0.08,"label":"marginal","mean_quality":0.37,"start":"2026-08-29T02:00Z","start_local":"05:00"},{"end":"2026-08-29T03:15Z","end_local":"06:15","hours":1.17,"label":"poor","mean_quality":0.17,"start":"2026-08-29T02:05Z","start_local":"05:05"},{"end":"2026-08-29T03:45Z","end_local":"06:45","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2026-08-29T03:15Z","start_local":"06:15"}]}],"unscheduled":[],"warnings":[]}
