{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-08-29","schedule":[{"end":"2027-08-29T18:05Z","end_local":"21:05","hours":1.17,"mean_quality":0.0,"start":"2027-08-29T16:55Z","start_local":"19:55","target":null},{"end":"2027-08-30T01:25Z","end_local":"04:25","hours":7.33,"mean_quality":0.87,"start":"2027-08-29T18:05Z","start_local":"21:05","target":"HD 189733"},{"end":"2027-08-30T03:45Z","end_local":"06:45","hours":2.33,"mean_quality":0.0,"start":"2027-08-30T01:25Z","start_local":"04:25","target":null}],"targets":[{"best_window":{"end":"2027-08-30T01:00Z","end_local":"04:00","hours":6.33,"label":"good","mean_quality":0.93,"start":"2027-08-29T18:40Z","start_local":"21:40"},"dec":22.71085365,"moon_separation":137.7,"name":"HD 189733","quality_hours":6.5,"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":178.7,"t":"2027-08-29T19:50Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-08-29T17:30Z","end_local":"20:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-08-29T16:55Z","start_local":"19:55"},{"end":"2027-08-29T18:05Z","end_local":"21:05","hours":0.58,"label":"poor","mean_quality":0.15,"start":"2027-08-29T17:30Z","start_local":"20:30"},{"end":"2027-08-29T18:40Z","end_local":"21:40","hours":0.58,"label":"marginal","mean_quality":0.5,"start":"2027-08-29T18:05Z","start_local":"21:05"},{"end":"2027-08-30T01:00Z","end_local":"04:00","hours":6.33,"label":"good","mean_quality":0.93,"start":"2027-08-29T18:40Z","start_local":"21:40"},{"end":"2027-08-30T01:25Z","end_local":"04:25","hours":0.42,"label":"marginal","mean_quality":0.49,"start":"2027-08-30T01:00Z","start_local":"04:00"},{"end":"2027-08-30T03:45Z","end_local":"06:45","hours":2.33,"label":"unusable","mean_quality":0.0,"start":"2027-08-30T01:25Z","start_local":"04:25"}]}],"unscheduled":[],"warnings":[]}