{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-01-05","schedule":[{"end":"2026-01-06T05:50Z","end_local":"07:50","hours":14.83,"mean_quality":0.0,"start":"2026-01-05T15:00Z","start_local":"17:00","target":null}],"targets":[{"best_window":null,"dec":2.05238823,"moon_separation":46.5,"name":"3C 273","quality_hours":0.17,"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":2,"score_astronomy":20,"score_weather":9,"transit":{"airmass":1.3,"alt":50.2,"az":180.6,"t":"2026-01-06T03:50Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-01-05T23:35Z","end_local":"01:35","hours":8.58,"label":"unusable","mean_quality":0.0,"start":"2026-01-05T15:00Z","start_local":"17:00"},{"end":"2026-01-06T01:00Z","end_local":"03:00","hours":1.42,"label":"poor","mean_quality":0.12,"start":"2026-01-05T23:35Z","start_local":"01:35"},{"end":"2026-01-06T05:50Z","end_local":"07:50","hours":4.83,"label":"unusable","mean_quality":0.0,"start":"2026-01-06T01:00Z","start_local":"03:00"}]}],"unscheduled":[{"name":"3C 273","why":"Overcast (\u226580 % cloud) for 11.7 of 13.7 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}