{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-03-17","schedule":[{"end":"2026-03-18T04:30Z","end_local":"06:30","hours":12.08,"mean_quality":0.0,"start":"2026-03-17T16:25Z","start_local":"18:25","target":null}],"targets":[{"best_window":null,"dec":38.78368896,"moon_separation":75.0,"name":"Vega","quality_hours":0.0,"ra":279.23473479,"resolved":{"common_name":"Vega","dec":38.78368896,"name":"* alf Lyr","ra":279.23473479,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=Vega","source":"sesame","spectral_type":"A0V","type":"dS*","type_text":"delta Scuti variable","vmag":0.03},"score":0,"score_astronomy":95,"score_weather":0,"transit":{"airmass":1.0,"alt":87.1,"az":177.2,"t":"2026-03-18T05:15Z"},"verdict":"unusable","weather_known":true,"windows":[{"end":"2026-03-18T04:30Z","end_local":"06:30","hours":12.08,"label":"unusable","mean_quality":0.0,"start":"2026-03-17T16:25Z","start_local":"18:25"}]}],"unscheduled":[{"name":"Vega","why":"Overcast (\u226580 % cloud) for 11.1 of 11.1 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}