{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-02-23","schedule":[{"end":"2026-02-24T03:00Z","end_local":"05:00","hours":11.0,"mean_quality":0.0,"start":"2026-02-23T16:00Z","start_local":"18:00","target":null},{"end":"2026-02-24T03:35Z","end_local":"05:35","hours":0.58,"mean_quality":0.38,"start":"2026-02-24T03:00Z","start_local":"05:00","target":"3C 273"},{"end":"2026-02-24T05:05Z","end_local":"07:05","hours":1.5,"mean_quality":0.0,"start":"2026-02-24T03:35Z","start_local":"05:35","target":null}],"targets":[{"best_window":{"end":"2026-02-24T03:35Z","end_local":"05:35","hours":0.58,"label":"marginal","mean_quality":0.38,"start":"2026-02-24T03:00Z","start_local":"05:00"},"dec":2.05238823,"moon_separation":127.3,"name":"3C 273","quality_hours":0.3,"ra":187.27791594,"resolved":{"dec":2.05238823,"morphology":"E3","name":"3C 273","ra":187.27791594,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=3C%20273","source":"sesame","type":"BLL","type_text":"BL Lac object \u2014 a blazar","vmag":14.83},"score":4,"score_astronomy":93,"score_weather":5,"transit":{"airmass":1.3,"alt":50.2,"az":179.7,"t":"2026-02-24T00:35Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-02-24T03:00Z","end_local":"05:00","hours":11.0,"label":"unusable","mean_quality":0.0,"start":"2026-02-23T16:00Z","start_local":"18:00"},{"end":"2026-02-24T03:35Z","end_local":"05:35","hours":0.58,"label":"marginal","mean_quality":0.38,"start":"2026-02-24T03:00Z","start_local":"05:00"},{"end":"2026-02-24T04:00Z","end_local":"06:00","hours":0.42,"label":"poor","mean_quality":0.18,"start":"2026-02-24T03:35Z","start_local":"05:35"},{"end":"2026-02-24T05:05Z","end_local":"07:05","hours":1.08,"label":"unusable","mean_quality":0.0,"start":"2026-02-24T04:00Z","start_local":"06:00"}]}],"unscheduled":[],"warnings":[]}
