{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-08-11","schedule":[{"end":"2025-08-11T23:30Z","end_local":"02:30","hours":6.08,"mean_quality":0.0,"start":"2025-08-11T17:25Z","start_local":"20:25","target":null},{"end":"2025-08-12T01:40Z","end_local":"04:40","hours":2.17,"mean_quality":0.47,"start":"2025-08-11T23:30Z","start_local":"02:30","target":"M45"},{"end":"2025-08-12T03:30Z","end_local":"06:30","hours":1.83,"mean_quality":0.0,"start":"2025-08-12T01:40Z","start_local":"04:40","target":null}],"targets":[{"best_window":{"end":"2025-08-12T01:40Z","end_local":"04:40","hours":2.17,"label":"marginal","mean_quality":0.47,"start":"2025-08-11T23:30Z","start_local":"02:30"},"dec":24.11388889,"moon_separation":66.9,"name":"M45","quality_hours":1.34,"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":18,"score_weather":100,"transit":{"airmass":1.05,"alt":72.5,"az":179.7,"t":"2025-08-12T04:45Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-08-11T23:10Z","end_local":"02:10","hours":5.75,"label":"unusable","mean_quality":0.0,"start":"2025-08-11T17:25Z","start_local":"20:25"},{"end":"2025-08-11T23:30Z","end_local":"02:30","hours":0.33,"label":"poor","mean_quality":0.27,"start":"2025-08-11T23:10Z","start_local":"02:10"},{"end":"2025-08-12T01:40Z","end_local":"04:40","hours":2.17,"label":"marginal","mean_quality":0.47,"start":"2025-08-11T23:30Z","start_local":"02:30"},{"end":"2025-08-12T03:00Z","end_local":"06:00","hours":1.33,"label":"poor","mean_quality":0.18,"start":"2025-08-12T01:40Z","start_local":"04:40"},{"end":"2025-08-12T03:30Z","end_local":"06:30","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2025-08-12T03:00Z","start_local":"06:00"}]}],"unscheduled":[],"warnings":[]}