{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-08-22","schedule":[{"end":"2027-08-22T22:55Z","end_local":"01:55","hours":5.75,"mean_quality":0.0,"start":"2027-08-22T17:10Z","start_local":"20:10","target":null},{"end":"2027-08-23T02:00Z","end_local":"05:00","hours":3.08,"mean_quality":0.41,"start":"2027-08-22T22:55Z","start_local":"01:55","target":"M45"},{"end":"2027-08-23T03:40Z","end_local":"06:40","hours":1.67,"mean_quality":0.0,"start":"2027-08-23T02:00Z","start_local":"05:00","target":null}],"targets":[{"best_window":{"end":"2027-08-23T02:00Z","end_local":"05:00","hours":3.08,"label":"marginal","mean_quality":0.41,"start":"2027-08-22T22:55Z","start_local":"01:55"},"dec":24.11388889,"moon_separation":26.6,"name":"M45","quality_hours":1.54,"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":17,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":180.6,"t":"2027-08-23T04:05Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-08-22T22:30Z","end_local":"01:30","hours":5.33,"label":"unusable","mean_quality":0.0,"start":"2027-08-22T17:10Z","start_local":"20:10"},{"end":"2027-08-22T22:55Z","end_local":"01:55","hours":0.42,"label":"poor","mean_quality":0.26,"start":"2027-08-22T22:30Z","start_local":"01:30"},{"end":"2027-08-23T02:00Z","end_local":"05:00","hours":3.08,"label":"marginal","mean_quality":0.41,"start":"2027-08-22T22:55Z","start_local":"01:55"},{"end":"2027-08-23T03:10Z","end_local":"06:10","hours":1.17,"label":"poor","mean_quality":0.15,"start":"2027-08-23T02:00Z","start_local":"05:00"},{"end":"2027-08-23T03:40Z","end_local":"06:40","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-08-23T03:10Z","start_local":"06:10"}]}],"unscheduled":[],"warnings":[]}