{"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":"2025-09-30T23:15Z","end_local":"02:15","hours":2.25,"mean_quality":0.64,"start":"2025-09-30T21:00Z","start_local":"00:00","target":"HD 189733"},{"end":"2025-10-01T04:20Z","end_local":"07:20","hours":5.08,"mean_quality":0.0,"start":"2025-09-30T23:15Z","start_local":"02:15","target":null}],"targets":[{"best_window":{"end":"2025-09-30T22:30Z","end_local":"01:30","hours":1.5,"label":"good","mean_quality":0.72,"start":"2025-09-30T21:00Z","start_local":"00:00"},"dec":22.71085365,"moon_separation":50.2,"name":"HD 189733","quality_hours":1.43,"ra":300.18213726,"resolved":{"dec":22.71085365,"name":"HD 189733","ra":300.18213726,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=HD%20189733","source":"sesame","spectral_type":"K2V","type":"BY*","type_text":"BY Draconis variable \u2014 a spotted, rotating star","vmag":7.648},"score":29,"score_astronomy":89,"score_weather":32,"transit":{"airmass":1.06,"alt":71.1,"az":180.7,"t":"2025-09-30T17:45Z"},"verdict":"poor","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":"2025-09-30T22:30Z","end_local":"01:30","hours":1.5,"label":"good","mean_quality":0.72,"start":"2025-09-30T21:00Z","start_local":"00:00"},{"end":"2025-09-30T23:15Z","end_local":"02:15","hours":0.75,"label":"marginal","mean_quality":0.48,"start":"2025-09-30T22:30Z","start_local":"01:30"},{"end":"2025-10-01T04:20Z","end_local":"07:20","hours":5.08,"label":"unusable","mean_quality":0.0,"start":"2025-09-30T23:15Z","start_local":"02:15"}]}],"unscheduled":[],"warnings":[]}