{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-12-02","schedule":[{"end":"2025-12-03T01:45Z","end_local":"03:45","hours":10.92,"mean_quality":0.0,"start":"2025-12-02T14:50Z","start_local":"16:50","target":null},{"end":"2025-12-03T04:00Z","end_local":"06:00","hours":2.25,"mean_quality":0.67,"start":"2025-12-03T01:45Z","start_local":"03:45","target":"3C 273"},{"end":"2025-12-03T05:35Z","end_local":"07:35","hours":1.58,"mean_quality":0.0,"start":"2025-12-03T04:00Z","start_local":"06:00","target":null}],"targets":[{"best_window":{"end":"2025-12-03T03:55Z","end_local":"05:55","hours":1.5,"label":"good","mean_quality":0.77,"start":"2025-12-03T02:25Z","start_local":"04:25"},"dec":2.05238823,"moon_separation":143.0,"name":"3C 273","quality_hours":1.51,"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":32,"score_astronomy":38,"score_weather":85,"transit":{"airmass":1.3,"alt":50.2,"az":179.1,"t":"2025-12-03T06:00Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-12-03T01:45Z","end_local":"03:45","hours":10.92,"label":"unusable","mean_quality":0.0,"start":"2025-12-02T14:50Z","start_local":"16:50"},{"end":"2025-12-03T02:25Z","end_local":"04:25","hours":0.67,"label":"marginal","mean_quality":0.48,"start":"2025-12-03T01:45Z","start_local":"03:45"},{"end":"2025-12-03T03:55Z","end_local":"05:55","hours":1.5,"label":"good","mean_quality":0.77,"start":"2025-12-03T02:25Z","start_local":"04:25"},{"end":"2025-12-03T04:00Z","end_local":"06:00","hours":0.08,"label":"marginal","mean_quality":0.44,"start":"2025-12-03T03:55Z","start_local":"05:55"},{"end":"2025-12-03T05:35Z","end_local":"07:35","hours":1.58,"label":"unusable","mean_quality":0.0,"start":"2025-12-03T04:00Z","start_local":"06:00"}]}],"unscheduled":[],"warnings":[]}