{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-10-28","schedule":[{"end":"2025-10-28T18:05Z","end_local":"20:05","hours":2.75,"mean_quality":0.0,"start":"2025-10-28T15:20Z","start_local":"17:20","target":null},{"end":"2025-10-29T03:50Z","end_local":"05:50","hours":9.75,"mean_quality":0.88,"start":"2025-10-28T18:05Z","start_local":"20:05","target":"M45"},{"end":"2025-10-29T04:50Z","end_local":"06:50","hours":1.0,"mean_quality":0.0,"start":"2025-10-29T03:50Z","start_local":"05:50","target":null}],"targets":[{"best_window":{"end":"2025-10-29T03:20Z","end_local":"05:20","hours":8.58,"label":"good","mean_quality":0.94,"start":"2025-10-28T18:45Z","start_local":"20:45"},"dec":24.11388889,"moon_separation":122.9,"name":"M45","quality_hours":8.69,"ra":56.60083333,"resolved":{"common_name":"Seven Sisters","dec":24.11388889,"name":"Cl Melotte 22","ra":56.60083333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"},"score":99,"score_astronomy":100,"score_weather":99,"transit":{"airmass":1.05,"alt":72.5,"az":181.0,"t":"2025-10-28T23:40Z"},"verdict":"good","weather_known":true,"windows":[{"end":"2025-10-28T18:05Z","end_local":"20:05","hours":2.75,"label":"unusable","mean_quality":0.0,"start":"2025-10-28T15:20Z","start_local":"17:20"},{"end":"2025-10-28T18:45Z","end_local":"20:45","hours":0.67,"label":"marginal","mean_quality":0.47,"start":"2025-10-28T18:05Z","start_local":"20:05"},{"end":"2025-10-29T03:20Z","end_local":"05:20","hours":8.58,"label":"good","mean_quality":0.94,"start":"2025-10-28T18:45Z","start_local":"20:45"},{"end":"2025-10-29T03:50Z","end_local":"05:50","hours":0.5,"label":"marginal","mean_quality":0.43,"start":"2025-10-29T03:20Z","start_local":"05:20"},{"end":"2025-10-29T04:25Z","end_local":"06:25","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2025-10-29T03:50Z","start_local":"05:50"},{"end":"2025-10-29T04:50Z","end_local":"06:50","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2025-10-29T04:25Z","start_local":"06:25"}]}],"unscheduled":[],"warnings":[]}