{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-04-05","schedule":[{"end":"2025-04-05T18:30Z","end_local":"21:30","hours":1.67,"mean_quality":0.0,"start":"2025-04-05T16:50Z","start_local":"19:50","target":null},{"end":"2025-04-05T18:40Z","end_local":"21:40","hours":0.17,"mean_quality":0.33,"start":"2025-04-05T18:30Z","start_local":"21:30","target":"M45"},{"end":"2025-04-06T04:00Z","end_local":"07:00","hours":9.33,"mean_quality":0.0,"start":"2025-04-05T18:40Z","start_local":"21:40","target":null}],"targets":[{"best_window":{"end":"2025-04-05T18:40Z","end_local":"21:40","hours":0.17,"label":"marginal","mean_quality":0.33,"start":"2025-04-05T18:30Z","start_local":"21:30"},"dec":24.11388889,"moon_separation":56.7,"name":"M45","quality_hours":0.25,"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":2,"score_astronomy":2,"score_weather":91,"transit":{"airmass":1.05,"alt":72.5,"az":181.8,"t":"2025-04-05T13:15Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-04-05T17:20Z","end_local":"20:20","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2025-04-05T16:50Z","start_local":"19:50"},{"end":"2025-04-05T18:30Z","end_local":"21:30","hours":1.17,"label":"poor","mean_quality":0.13,"start":"2025-04-05T17:20Z","start_local":"20:20"},{"end":"2025-04-05T18:40Z","end_local":"21:40","hours":0.17,"label":"marginal","mean_quality":0.33,"start":"2025-04-05T18:30Z","start_local":"21:30"},{"end":"2025-04-05T18:50Z","end_local":"21:50","hours":0.17,"label":"poor","mean_quality":0.29,"start":"2025-04-05T18:40Z","start_local":"21:40"},{"end":"2025-04-06T04:00Z","end_local":"07:00","hours":9.17,"label":"unusable","mean_quality":0.0,"start":"2025-04-05T18:50Z","start_local":"21:50"}]}],"unscheduled":[],"warnings":[]}
