{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2028-04-30","schedule":[{"end":"2028-04-30T22:15Z","end_local":"01:15","hours":5.0,"mean_quality":0.0,"start":"2028-04-30T17:15Z","start_local":"20:15","target":null},{"end":"2028-05-01T02:10Z","end_local":"05:10","hours":3.92,"mean_quality":0.75,"start":"2028-04-30T22:15Z","start_local":"01:15","target":"HD 189733"},{"end":"2028-05-01T03:20Z","end_local":"06:20","hours":1.17,"mean_quality":0.0,"start":"2028-05-01T02:10Z","start_local":"05:10","target":null}],"targets":[{"best_window":{"end":"2028-05-01T01:30Z","end_local":"04:30","hours":2.75,"label":"good","mean_quality":0.86,"start":"2028-04-30T22:45Z","start_local":"01:45"},"dec":22.71085365,"moon_separation":136.2,"name":"HD 189733","quality_hours":3.03,"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":73,"score_weather":null,"transit":{"airmass":1.06,"alt":71.1,"az":180.3,"t":"2028-05-01T03:45Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-04-30T22:15Z","end_local":"01:15","hours":5.0,"label":"unusable","mean_quality":0.0,"start":"2028-04-30T17:15Z","start_local":"20:15"},{"end":"2028-04-30T22:45Z","end_local":"01:45","hours":0.5,"label":"marginal","mean_quality":0.49,"start":"2028-04-30T22:15Z","start_local":"01:15"},{"end":"2028-05-01T01:30Z","end_local":"04:30","hours":2.75,"label":"good","mean_quality":0.86,"start":"2028-04-30T22:45Z","start_local":"01:45"},{"end":"2028-05-01T02:10Z","end_local":"05:10","hours":0.67,"label":"marginal","mean_quality":0.5,"start":"2028-05-01T01:30Z","start_local":"04:30"},{"end":"2028-05-01T02:50Z","end_local":"05:50","hours":0.67,"label":"poor","mean_quality":0.15,"start":"2028-05-01T02:10Z","start_local":"05:10"},{"end":"2028-05-01T03:20Z","end_local":"06:20","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-05-01T02:50Z","start_local":"05:50"}]}],"unscheduled":[],"warnings":[]}