{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2028-04-10","schedule":[{"end":"2028-04-10T23:35Z","end_local":"02:35","hours":6.67,"mean_quality":0.0,"start":"2028-04-10T16:55Z","start_local":"19:55","target":null},{"end":"2028-04-11T02:45Z","end_local":"05:45","hours":3.17,"mean_quality":0.54,"start":"2028-04-10T23:35Z","start_local":"02:35","target":"HD 189733"},{"end":"2028-04-11T03:50Z","end_local":"06:50","hours":1.08,"mean_quality":0.0,"start":"2028-04-11T02:45Z","start_local":"05:45","target":null}],"targets":[{"best_window":{"end":"2028-04-11T02:10Z","end_local":"05:10","hours":1.58,"label":"good","mean_quality":0.65,"start":"2028-04-11T00:35Z","start_local":"03:35"},"dec":22.71085365,"moon_separation":90.9,"name":"HD 189733","quality_hours":1.78,"ra":300.18213726,"resolved":{"dec":22.71085365,"name":"HD 189733","ra":300.18213726,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=HD%20189733","source":"sesame","spectral_type":"K2V","type":"BY*","type_text":"BY Draconis variable \u2014 a spotted, rotating star","vmag":7.648},"score":null,"score_astronomy":31,"score_weather":null,"transit":{"airmass":1.06,"alt":71.1,"az":181.3,"t":"2028-04-11T05:05Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-10T23:35Z","end_local":"02:35","hours":6.67,"label":"unusable","mean_quality":0.0,"start":"2028-04-10T16:55Z","start_local":"19:55"},{"end":"2028-04-11T00:35Z","end_local":"03:35","hours":1.0,"label":"marginal","mean_quality":0.46,"start":"2028-04-10T23:35Z","start_local":"02:35"},{"end":"2028-04-11T02:10Z","end_local":"05:10","hours":1.58,"label":"good","mean_quality":0.65,"start":"2028-04-11T00:35Z","start_local":"03:35"},{"end":"2028-04-11T02:45Z","end_local":"05:45","hours":0.58,"label":"marginal","mean_quality":0.37,"start":"2028-04-11T02:10Z","start_local":"05:10"},{"end":"2028-04-11T03:20Z","end_local":"06:20","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2028-04-11T02:45Z","start_local":"05:45"},{"end":"2028-04-11T03:50Z","end_local":"06:50","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-04-11T03:20Z","start_local":"06:20"}]}],"unscheduled":[],"warnings":[]}