{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2028-03-17","schedule":[{"end":"2028-03-17T17:35Z","end_local":"19:35","hours":1.08,"mean_quality":0.0,"start":"2028-03-17T16:30Z","start_local":"18:30","target":null},{"end":"2028-03-17T20:05Z","end_local":"22:05","hours":2.5,"mean_quality":0.67,"start":"2028-03-17T17:35Z","start_local":"19:35","target":"M45"},{"end":"2028-03-18T04:30Z","end_local":"06:30","hours":8.42,"mean_quality":0.0,"start":"2028-03-17T20:05Z","start_local":"22:05","target":null}],"targets":[{"best_window":{"end":"2028-03-17T19:35Z","end_local":"21:35","hours":1.5,"label":"good","mean_quality":0.8,"start":"2028-03-17T18:05Z","start_local":"20:05"},"dec":24.11388889,"moon_separation":152.4,"name":"M45","quality_hours":1.77,"ra":56.60083333,"resolved":{"common_name":"Seven Sisters","dec":24.11388889,"name":"Cl Melotte 22","ra":56.60083333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"},"score":null,"score_astronomy":39,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":178.9,"t":"2028-03-17T14:25Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-03-17T17:00Z","end_local":"19:00","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-03-17T16:30Z","start_local":"18:30"},{"end":"2028-03-17T17:35Z","end_local":"19:35","hours":0.58,"label":"poor","mean_quality":0.14,"start":"2028-03-17T17:00Z","start_local":"19:00"},{"end":"2028-03-17T18:05Z","end_local":"20:05","hours":0.5,"label":"marginal","mean_quality":0.45,"start":"2028-03-17T17:35Z","start_local":"19:35"},{"end":"2028-03-17T19:35Z","end_local":"21:35","hours":1.5,"label":"good","mean_quality":0.8,"start":"2028-03-17T18:05Z","start_local":"20:05"},{"end":"2028-03-17T20:05Z","end_local":"22:05","hours":0.5,"label":"marginal","mean_quality":0.51,"start":"2028-03-17T19:35Z","start_local":"21:35"},{"end":"2028-03-18T04:30Z","end_local":"06:30","hours":8.42,"label":"unusable","mean_quality":0.0,"start":"2028-03-17T20:05Z","start_local":"22:05"}]}],"unscheduled":[],"warnings":[]}