{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-10-10","schedule":[{"end":"2025-10-10T19:35Z","end_local":"22:35","hours":3.83,"mean_quality":0.0,"start":"2025-10-10T15:45Z","start_local":"18:45","target":null},{"end":"2025-10-10T23:00Z","end_local":"02:00","hours":3.42,"mean_quality":0.4,"start":"2025-10-10T19:35Z","start_local":"22:35","target":"M45"},{"end":"2025-10-11T04:30Z","end_local":"07:30","hours":5.5,"mean_quality":0.0,"start":"2025-10-10T23:00Z","start_local":"02:00","target":null}],"targets":[{"best_window":{"end":"2025-10-10T23:00Z","end_local":"02:00","hours":3.42,"label":"marginal","mean_quality":0.4,"start":"2025-10-10T19:35Z","start_local":"22:35"},"dec":24.11388889,"moon_separation":10.7,"name":"M45","quality_hours":1.65,"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":18,"score_astronomy":35,"score_weather":52,"transit":{"airmass":1.05,"alt":72.5,"az":180.4,"t":"2025-10-11T00:50Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-10-10T19:15Z","end_local":"22:15","hours":3.5,"label":"unusable","mean_quality":0.0,"start":"2025-10-10T15:45Z","start_local":"18:45"},{"end":"2025-10-10T19:35Z","end_local":"22:35","hours":0.33,"label":"poor","mean_quality":0.26,"start":"2025-10-10T19:15Z","start_local":"22:15"},{"end":"2025-10-10T23:00Z","end_local":"02:00","hours":3.42,"label":"marginal","mean_quality":0.4,"start":"2025-10-10T19:35Z","start_local":"22:35"},{"end":"2025-10-11T00:00Z","end_local":"03:00","hours":1.0,"label":"poor","mean_quality":0.19,"start":"2025-10-10T23:00Z","start_local":"02:00"},{"end":"2025-10-11T04:30Z","end_local":"07:30","hours":4.5,"label":"unusable","mean_quality":0.0,"start":"2025-10-11T00:00Z","start_local":"03:00"}]}],"unscheduled":[],"warnings":[]}