{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-03-29","schedule":[{"end":"2027-03-29T17:45Z","end_local":"20:45","hours":1.08,"mean_quality":0.0,"start":"2027-03-29T16:40Z","start_local":"19:40","target":null},{"end":"2027-03-29T19:20Z","end_local":"22:20","hours":1.58,"mean_quality":0.54,"start":"2027-03-29T17:45Z","start_local":"20:45","target":"M45"},{"end":"2027-03-30T04:10Z","end_local":"07:10","hours":8.83,"mean_quality":0.0,"start":"2027-03-29T19:20Z","start_local":"22:20","target":null}],"targets":[{"best_window":{"end":"2027-03-29T18:55Z","end_local":"21:55","hours":0.58,"label":"good","mean_quality":0.71,"start":"2027-03-29T18:20Z","start_local":"21:20"},"dec":24.11388889,"moon_separation":142.0,"name":"M45","quality_hours":0.93,"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":19,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":178.4,"t":"2027-03-29T13:40Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-03-29T17:15Z","end_local":"20:15","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-03-29T16:40Z","start_local":"19:40"},{"end":"2027-03-29T17:45Z","end_local":"20:45","hours":0.5,"label":"poor","mean_quality":0.13,"start":"2027-03-29T17:15Z","start_local":"20:15"},{"end":"2027-03-29T18:20Z","end_local":"21:20","hours":0.58,"label":"marginal","mean_quality":0.41,"start":"2027-03-29T17:45Z","start_local":"20:45"},{"end":"2027-03-29T18:55Z","end_local":"21:55","hours":0.58,"label":"good","mean_quality":0.71,"start":"2027-03-29T18:20Z","start_local":"21:20"},{"end":"2027-03-29T19:20Z","end_local":"22:20","hours":0.42,"label":"marginal","mean_quality":0.49,"start":"2027-03-29T18:55Z","start_local":"21:55"},{"end":"2027-03-30T04:10Z","end_local":"07:10","hours":8.83,"label":"unusable","mean_quality":0.0,"start":"2027-03-29T19:20Z","start_local":"22:20"}]}],"unscheduled":[],"warnings":[]}