{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-08-19","schedule":[{"end":"2027-08-19T18:25Z","end_local":"21:25","hours":1.17,"mean_quality":0.0,"start":"2027-08-19T17:15Z","start_local":"20:15","target":null},{"end":"2027-08-20T01:40Z","end_local":"04:40","hours":7.25,"mean_quality":0.5,"start":"2027-08-19T18:25Z","start_local":"21:25","target":"HD 189733"},{"end":"2027-08-20T03:35Z","end_local":"06:35","hours":1.92,"mean_quality":0.0,"start":"2027-08-20T01:40Z","start_local":"04:40","target":null}],"targets":[{"best_window":{"end":"2027-08-19T20:15Z","end_local":"23:15","hours":1.25,"label":"good","mean_quality":0.63,"start":"2027-08-19T19:00Z","start_local":"22:00"},"dec":22.71085365,"moon_separation":56.7,"name":"HD 189733","quality_hours":3.77,"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":62,"score_weather":null,"transit":{"airmass":1.06,"alt":71.1,"az":179.2,"t":"2027-08-19T20:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-08-19T17:50Z","end_local":"20:50","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-08-19T17:15Z","start_local":"20:15"},{"end":"2027-08-19T18:25Z","end_local":"21:25","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2027-08-19T17:50Z","start_local":"20:50"},{"end":"2027-08-19T19:00Z","end_local":"22:00","hours":0.58,"label":"marginal","mean_quality":0.34,"start":"2027-08-19T18:25Z","start_local":"21:25"},{"end":"2027-08-19T20:15Z","end_local":"23:15","hours":1.25,"label":"good","mean_quality":0.63,"start":"2027-08-19T19:00Z","start_local":"22:00"},{"end":"2027-08-20T01:40Z","end_local":"04:40","hours":5.42,"label":"marginal","mean_quality":0.48,"start":"2027-08-19T20:15Z","start_local":"23:15"},{"end":"2027-08-20T02:05Z","end_local":"05:05","hours":0.42,"label":"poor","mean_quality":0.21,"start":"2027-08-20T01:40Z","start_local":"04:40"},{"end":"2027-08-20T03:35Z","end_local":"06:35","hours":1.5,"label":"unusable","mean_quality":0.0,"start":"2027-08-20T02:05Z","start_local":"05:05"}]}],"unscheduled":[],"warnings":[]}