{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-04-12","schedule":[{"end":"2026-04-13T03:45Z","end_local":"06:45","hours":10.83,"mean_quality":0.0,"start":"2026-04-12T16:55Z","start_local":"19:55","target":null}],"targets":[{"best_window":null,"dec":38.78368896,"moon_separation":69.6,"name":"Vega","quality_hours":0.16,"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":4,"score_astronomy":100,"score_weather":4,"transit":{"airmass":1.0,"alt":87.1,"az":185.8,"t":"2026-04-13T03:35Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-04-12T21:10Z","end_local":"00:10","hours":4.25,"label":"unusable","mean_quality":0.0,"start":"2026-04-12T16:55Z","start_local":"19:55"},{"end":"2026-04-12T22:00Z","end_local":"01:00","hours":0.83,"label":"poor","mean_quality":0.2,"start":"2026-04-12T21:10Z","start_local":"00:10"},{"end":"2026-04-13T03:45Z","end_local":"06:45","hours":5.75,"label":"unusable","mean_quality":0.0,"start":"2026-04-12T22:00Z","start_local":"01:00"}]}],"unscheduled":[{"name":"Vega","why":"no usable window tonight"}],"warnings":[]}