{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2028-09-15","schedule":[{"end":"2028-09-15T17:35Z","end_local":"20:35","hours":1.17,"mean_quality":0.0,"start":"2028-09-15T16:25Z","start_local":"19:25","target":null},{"end":"2028-09-16T00:15Z","end_local":"03:15","hours":6.67,"mean_quality":0.87,"start":"2028-09-15T17:35Z","start_local":"20:35","target":"HD 189733"},{"end":"2028-09-16T04:05Z","end_local":"07:05","hours":3.83,"mean_quality":0.0,"start":"2028-09-16T00:15Z","start_local":"03:15","target":null}],"targets":[{"best_window":{"end":"2028-09-15T23:50Z","end_local":"02:50","hours":5.75,"label":"good","mean_quality":0.93,"start":"2028-09-15T18:05Z","start_local":"21:05"},"dec":22.71085365,"moon_separation":139.5,"name":"HD 189733","quality_hours":5.88,"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":100,"score_weather":null,"transit":{"airmass":1.06,"alt":71.1,"az":178.6,"t":"2028-09-15T18:40Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-09-15T17:00Z","end_local":"20:00","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2028-09-15T16:25Z","start_local":"19:25"},{"end":"2028-09-15T17:35Z","end_local":"20:35","hours":0.58,"label":"poor","mean_quality":0.15,"start":"2028-09-15T17:00Z","start_local":"20:00"},{"end":"2028-09-15T18:05Z","end_local":"21:05","hours":0.5,"label":"marginal","mean_quality":0.5,"start":"2028-09-15T17:35Z","start_local":"20:35"},{"end":"2028-09-15T23:50Z","end_local":"02:50","hours":5.75,"label":"good","mean_quality":0.93,"start":"2028-09-15T18:05Z","start_local":"21:05"},{"end":"2028-09-16T00:15Z","end_local":"03:15","hours":0.42,"label":"marginal","mean_quality":0.49,"start":"2028-09-15T23:50Z","start_local":"02:50"},{"end":"2028-09-16T04:05Z","end_local":"07:05","hours":3.83,"label":"unusable","mean_quality":0.0,"start":"2028-09-16T00:15Z","start_local":"03:15"}]}],"unscheduled":[],"warnings":[]}