{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-07-27","schedule":[{"end":"2025-07-28T00:10Z","end_local":"03:10","hours":6.5,"mean_quality":0.0,"start":"2025-07-27T17:40Z","start_local":"20:40","target":null},{"end":"2025-07-28T02:05Z","end_local":"05:05","hours":1.92,"mean_quality":0.51,"start":"2025-07-28T00:10Z","start_local":"03:10","target":"M45"},{"end":"2025-07-28T03:15Z","end_local":"06:15","hours":1.17,"mean_quality":0.0,"start":"2025-07-28T02:05Z","start_local":"05:05","target":null}],"targets":[{"best_window":{"end":"2025-07-28T01:20Z","end_local":"04:20","hours":0.42,"label":"good","mean_quality":0.75,"start":"2025-07-28T00:55Z","start_local":"03:55"},"dec":24.11388889,"moon_separation":103.9,"name":"M45","quality_hours":1.05,"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":21,"score_astronomy":23,"score_weather":92,"transit":{"airmass":1.05,"alt":72.5,"az":180.5,"t":"2025-07-28T05:45Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-07-28T00:10Z","end_local":"03:10","hours":6.5,"label":"unusable","mean_quality":0.0,"start":"2025-07-27T17:40Z","start_local":"20:40"},{"end":"2025-07-28T00:55Z","end_local":"03:55","hours":0.75,"label":"marginal","mean_quality":0.47,"start":"2025-07-28T00:10Z","start_local":"03:10"},{"end":"2025-07-28T01:20Z","end_local":"04:20","hours":0.42,"label":"good","mean_quality":0.75,"start":"2025-07-28T00:55Z","start_local":"03:55"},{"end":"2025-07-28T02:05Z","end_local":"05:05","hours":0.75,"label":"marginal","mean_quality":0.41,"start":"2025-07-28T01:20Z","start_local":"04:20"},{"end":"2025-07-28T02:40Z","end_local":"05:40","hours":0.58,"label":"poor","mean_quality":0.13,"start":"2025-07-28T02:05Z","start_local":"05:05"},{"end":"2025-07-28T03:15Z","end_local":"06:15","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2025-07-28T02:40Z","start_local":"05:40"}]}],"unscheduled":[],"warnings":[]}