{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-02-26","schedule":[{"end":"2026-02-27T02:35Z","end_local":"04:35","hours":10.5,"mean_quality":0.0,"start":"2026-02-26T16:05Z","start_local":"18:05","target":null},{"end":"2026-02-27T03:30Z","end_local":"05:30","hours":0.92,"mean_quality":0.37,"start":"2026-02-27T02:35Z","start_local":"04:35","target":"HD 189733"},{"end":"2026-02-27T05:00Z","end_local":"07:00","hours":1.5,"mean_quality":0.0,"start":"2026-02-27T03:30Z","start_local":"05:30","target":null}],"targets":[{"best_window":{"end":"2026-02-27T03:30Z","end_local":"05:30","hours":0.92,"label":"marginal","mean_quality":0.37,"start":"2026-02-27T02:35Z","start_local":"04:35"},"dec":22.71085365,"moon_separation":126.6,"name":"HD 189733","quality_hours":0.55,"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":11,"score_astronomy":19,"score_weather":57,"transit":{"airmass":1.06,"alt":71.1,"az":180.5,"t":"2026-02-27T07:55Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-02-27T02:25Z","end_local":"04:25","hours":10.33,"label":"unusable","mean_quality":0.0,"start":"2026-02-26T16:05Z","start_local":"18:05"},{"end":"2026-02-27T02:35Z","end_local":"04:35","hours":0.17,"label":"poor","mean_quality":0.25,"start":"2026-02-27T02:25Z","start_local":"04:25"},{"end":"2026-02-27T03:30Z","end_local":"05:30","hours":0.92,"label":"marginal","mean_quality":0.37,"start":"2026-02-27T02:35Z","start_local":"04:35"},{"end":"2026-02-27T04:35Z","end_local":"06:35","hours":1.08,"label":"poor","mean_quality":0.16,"start":"2026-02-27T03:30Z","start_local":"05:30"},{"end":"2026-02-27T05:00Z","end_local":"07:00","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2026-02-27T04:35Z","start_local":"06:35"}]}],"unscheduled":[],"warnings":[]}