{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-05-15","schedule":[{"end":"2026-05-15T21:20Z","end_local":"00:20","hours":3.83,"mean_quality":0.0,"start":"2026-05-15T17:30Z","start_local":"20:30","target":null},{"end":"2026-05-16T01:00Z","end_local":"04:00","hours":3.67,"mean_quality":0.54,"start":"2026-05-15T21:20Z","start_local":"00:20","target":"HD 189733"},{"end":"2026-05-16T03:05Z","end_local":"06:05","hours":2.08,"mean_quality":0.0,"start":"2026-05-16T01:00Z","start_local":"04:00","target":null}],"targets":[{"best_window":{"end":"2026-05-15T23:00Z","end_local":"02:00","hours":0.83,"label":"good","mean_quality":0.64,"start":"2026-05-15T22:10Z","start_local":"01:10"},"dec":22.71085365,"moon_separation":89.5,"name":"HD 189733","quality_hours":1.98,"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":50,"score_astronomy":90,"score_weather":55,"transit":{"airmass":1.06,"alt":71.1,"az":181.7,"t":"2026-05-16T02:50Z"},"verdict":"marginal","weather_known":true,"windows":[{"end":"2026-05-15T21:20Z","end_local":"00:20","hours":3.83,"label":"unusable","mean_quality":0.0,"start":"2026-05-15T17:30Z","start_local":"20:30"},{"end":"2026-05-15T22:10Z","end_local":"01:10","hours":0.83,"label":"marginal","mean_quality":0.49,"start":"2026-05-15T21:20Z","start_local":"00:20"},{"end":"2026-05-15T23:00Z","end_local":"02:00","hours":0.83,"label":"good","mean_quality":0.64,"start":"2026-05-15T22:10Z","start_local":"01:10"},{"end":"2026-05-16T00:40Z","end_local":"03:40","hours":1.67,"label":"marginal","mean_quality":0.5,"start":"2026-05-15T23:00Z","start_local":"02:00"},{"end":"2026-05-16T01:00Z","end_local":"04:00","hours":0.33,"label":"good","mean_quality":0.61,"start":"2026-05-16T00:40Z","start_local":"03:40"},{"end":"2026-05-16T03:05Z","end_local":"06:05","hours":2.08,"label":"unusable","mean_quality":0.0,"start":"2026-05-16T01:00Z","start_local":"04:00"}]}],"unscheduled":[],"warnings":[]}