{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2028-06-03","schedule":[{"end":"2028-06-03T20:00Z","end_local":"23:00","hours":2.17,"mean_quality":0.0,"start":"2028-06-03T17:50Z","start_local":"20:50","target":null},{"end":"2028-06-04T01:35Z","end_local":"04:35","hours":5.58,"mean_quality":0.7,"start":"2028-06-03T20:00Z","start_local":"23:00","target":"HD 189733"},{"end":"2028-06-04T02:50Z","end_local":"05:50","hours":1.25,"mean_quality":0.0,"start":"2028-06-04T01:35Z","start_local":"04:35","target":null}],"targets":[{"best_window":{"end":"2028-06-04T00:45Z","end_local":"03:45","hours":3.92,"label":"good","mean_quality":0.79,"start":"2028-06-03T20:50Z","start_local":"23:50"},"dec":22.71085365,"moon_separation":98.8,"name":"HD 189733","quality_hours":3.99,"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":179.3,"t":"2028-06-04T01:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-06-03T20:00Z","end_local":"23:00","hours":2.17,"label":"unusable","mean_quality":0.0,"start":"2028-06-03T17:50Z","start_local":"20:50"},{"end":"2028-06-03T20:50Z","end_local":"23:50","hours":0.83,"label":"marginal","mean_quality":0.45,"start":"2028-06-03T20:00Z","start_local":"23:00"},{"end":"2028-06-04T00:45Z","end_local":"03:45","hours":3.92,"label":"good","mean_quality":0.79,"start":"2028-06-03T20:50Z","start_local":"23:50"},{"end":"2028-06-04T01:35Z","end_local":"04:35","hours":0.83,"label":"marginal","mean_quality":0.5,"start":"2028-06-04T00:45Z","start_local":"03:45"},{"end":"2028-06-04T02:15Z","end_local":"05:15","hours":0.67,"label":"poor","mean_quality":0.15,"start":"2028-06-04T01:35Z","start_local":"04:35"},{"end":"2028-06-04T02:50Z","end_local":"05:50","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2028-06-04T02:15Z","start_local":"05:15"}]}],"unscheduled":[],"warnings":[]}