{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-09-17","schedule":[{"end":"2027-09-17T17:30Z","end_local":"20:30","hours":1.08,"mean_quality":0.0,"start":"2027-09-17T16:25Z","start_local":"19:25","target":null},{"end":"2027-09-17T23:50Z","end_local":"02:50","hours":6.33,"mean_quality":0.54,"start":"2027-09-17T17:30Z","start_local":"20:30","target":"HD 189733"},{"end":"2027-09-18T04:05Z","end_local":"07:05","hours":4.25,"mean_quality":0.0,"start":"2027-09-17T23:50Z","start_local":"02:50","target":null}],"targets":[{"best_window":{"end":"2027-09-17T20:30Z","end_local":"23:30","hours":2.42,"label":"good","mean_quality":0.65,"start":"2027-09-17T18:05Z","start_local":"21:05"},"dec":22.71085365,"moon_separation":71.1,"name":"HD 189733","quality_hours":3.55,"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":178.5,"t":"2027-09-17T18:35Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-09-17T17:00Z","end_local":"20:00","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-09-17T16:25Z","start_local":"19:25"},{"end":"2027-09-17T17:30Z","end_local":"20:30","hours":0.5,"label":"poor","mean_quality":0.11,"start":"2027-09-17T17:00Z","start_local":"20:00"},{"end":"2027-09-17T18:05Z","end_local":"21:05","hours":0.58,"label":"marginal","mean_quality":0.36,"start":"2027-09-17T17:30Z","start_local":"20:30"},{"end":"2027-09-17T20:30Z","end_local":"23:30","hours":2.42,"label":"good","mean_quality":0.65,"start":"2027-09-17T18:05Z","start_local":"21:05"},{"end":"2027-09-17T23:50Z","end_local":"02:50","hours":3.33,"label":"marginal","mean_quality":0.49,"start":"2027-09-17T20:30Z","start_local":"23:30"},{"end":"2027-09-18T00:10Z","end_local":"03:10","hours":0.33,"label":"poor","mean_quality":0.26,"start":"2027-09-17T23:50Z","start_local":"02:50"},{"end":"2027-09-18T04:05Z","end_local":"07:05","hours":3.92,"label":"unusable","mean_quality":0.0,"start":"2027-09-18T00:10Z","start_local":"03:10"}]}],"unscheduled":[],"warnings":[]}