{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-04-19","schedule":[{"end":"2027-04-19T23:00Z","end_local":"02:00","hours":5.92,"mean_quality":0.0,"start":"2027-04-19T17:05Z","start_local":"20:05","target":null},{"end":"2027-04-20T02:30Z","end_local":"05:30","hours":3.5,"mean_quality":0.62,"start":"2027-04-19T23:00Z","start_local":"02:00","target":"HD 189733"},{"end":"2027-04-20T03:35Z","end_local":"06:35","hours":1.08,"mean_quality":0.0,"start":"2027-04-20T02:30Z","start_local":"05:30","target":null}],"targets":[{"best_window":{"end":"2027-04-20T01:55Z","end_local":"04:55","hours":2.17,"label":"good","mean_quality":0.73,"start":"2027-04-19T23:45Z","start_local":"02:45"},"dec":22.71085365,"moon_separation":108.9,"name":"HD 189733","quality_hours":2.24,"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":46,"score_weather":null,"transit":{"airmass":1.06,"alt":71.1,"az":179.4,"t":"2027-04-20T04:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-04-19T23:00Z","end_local":"02:00","hours":5.92,"label":"unusable","mean_quality":0.0,"start":"2027-04-19T17:05Z","start_local":"20:05"},{"end":"2027-04-19T23:45Z","end_local":"02:45","hours":0.75,"label":"marginal","mean_quality":0.45,"start":"2027-04-19T23:00Z","start_local":"02:00"},{"end":"2027-04-20T01:55Z","end_local":"04:55","hours":2.17,"label":"good","mean_quality":0.73,"start":"2027-04-19T23:45Z","start_local":"02:45"},{"end":"2027-04-20T02:30Z","end_local":"05:30","hours":0.58,"label":"marginal","mean_quality":0.42,"start":"2027-04-20T01:55Z","start_local":"04:55"},{"end":"2027-04-20T03:05Z","end_local":"06:05","hours":0.58,"label":"poor","mean_quality":0.14,"start":"2027-04-20T02:30Z","start_local":"05:30"},{"end":"2027-04-20T03:35Z","end_local":"06:35","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-04-20T03:05Z","start_local":"06:05"}]}],"unscheduled":[],"warnings":[]}
