{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-09-30","schedule":[{"end":"2025-09-30T21:00Z","end_local":"00:00","hours":5.0,"mean_quality":0.0,"start":"2025-09-30T16:00Z","start_local":"19:00","target":null},{"end":"2025-10-01T03:20Z","end_local":"06:20","hours":6.33,"mean_quality":0.85,"start":"2025-09-30T21:00Z","start_local":"00:00","target":"M45"},{"end":"2025-10-01T04:20Z","end_local":"07:20","hours":1.0,"mean_quality":0.0,"start":"2025-10-01T03:20Z","start_local":"06:20","target":null}],"targets":[{"best_window":{"end":"2025-10-01T02:50Z","end_local":"05:50","hours":5.83,"label":"good","mean_quality":0.88,"start":"2025-09-30T21:00Z","start_local":"00:00"},"dec":24.11388889,"moon_separation":131.3,"name":"M45","quality_hours":5.44,"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":83,"score_astronomy":100,"score_weather":83,"transit":{"airmass":1.05,"alt":72.5,"az":180.9,"t":"2025-10-01T01:30Z"},"verdict":"good","weather_known":true,"windows":[{"end":"2025-09-30T21:00Z","end_local":"00:00","hours":5.0,"label":"unusable","mean_quality":0.0,"start":"2025-09-30T16:00Z","start_local":"19:00"},{"end":"2025-10-01T02:50Z","end_local":"05:50","hours":5.83,"label":"good","mean_quality":0.88,"start":"2025-09-30T21:00Z","start_local":"00:00"},{"end":"2025-10-01T03:20Z","end_local":"06:20","hours":0.5,"label":"marginal","mean_quality":0.48,"start":"2025-10-01T02:50Z","start_local":"05:50"},{"end":"2025-10-01T03:55Z","end_local":"06:55","hours":0.58,"label":"poor","mean_quality":0.15,"start":"2025-10-01T03:20Z","start_local":"06:20"},{"end":"2025-10-01T04:20Z","end_local":"07:20","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2025-10-01T03:55Z","start_local":"06:55"}]}],"unscheduled":[],"warnings":[]}