{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-05-20","schedule":[{"end":"2027-05-20T21:05Z","end_local":"00:05","hours":3.5,"mean_quality":0.0,"start":"2027-05-20T17:35Z","start_local":"20:35","target":null},{"end":"2027-05-21T01:45Z","end_local":"04:45","hours":4.67,"mean_quality":0.54,"start":"2027-05-20T21:05Z","start_local":"00:05","target":"HD 189733"},{"end":"2027-05-21T03:00Z","end_local":"06:00","hours":1.25,"mean_quality":0.0,"start":"2027-05-21T01:45Z","start_local":"04:45","target":null}],"targets":[{"best_window":{"end":"2027-05-21T01:00Z","end_local":"04:00","hours":1.83,"label":"good","mean_quality":0.65,"start":"2027-05-20T23:10Z","start_local":"02:10"},"dec":22.71085365,"moon_separation":74.1,"name":"HD 189733","quality_hours":2.61,"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":45,"score_weather":null,"transit":{"airmass":1.06,"alt":71.1,"az":180.8,"t":"2027-05-21T02:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-05-20T21:00Z","end_local":"00:00","hours":3.42,"label":"unusable","mean_quality":0.0,"start":"2027-05-20T17:35Z","start_local":"20:35"},{"end":"2027-05-20T21:05Z","end_local":"00:05","hours":0.08,"label":"poor","mean_quality":0.28,"start":"2027-05-20T21:00Z","start_local":"00:00"},{"end":"2027-05-20T23:10Z","end_local":"02:10","hours":2.08,"label":"marginal","mean_quality":0.51,"start":"2027-05-20T21:05Z","start_local":"00:05"},{"end":"2027-05-21T01:00Z","end_local":"04:00","hours":1.83,"label":"good","mean_quality":0.65,"start":"2027-05-20T23:10Z","start_local":"02:10"},{"end":"2027-05-21T01:45Z","end_local":"04:45","hours":0.75,"label":"marginal","mean_quality":0.35,"start":"2027-05-21T01:00Z","start_local":"04:00"},{"end":"2027-05-21T02:25Z","end_local":"05:25","hours":0.67,"label":"poor","mean_quality":0.11,"start":"2027-05-21T01:45Z","start_local":"04:45"},{"end":"2027-05-21T03:00Z","end_local":"06:00","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-05-21T02:25Z","start_local":"05:25"}]}],"unscheduled":[],"warnings":[]}