{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-04-04","schedule":[{"end":"2027-04-04T17:55Z","end_local":"20:55","hours":1.17,"mean_quality":0.0,"start":"2027-04-04T16:45Z","start_local":"19:45","target":null},{"end":"2027-04-04T18:55Z","end_local":"21:55","hours":1.0,"mean_quality":0.42,"start":"2027-04-04T17:55Z","start_local":"20:55","target":"M45"},{"end":"2027-04-05T04:00Z","end_local":"07:00","hours":9.08,"mean_quality":0.0,"start":"2027-04-04T18:55Z","start_local":"21:55","target":null}],"targets":[{"best_window":{"end":"2027-04-04T18:55Z","end_local":"21:55","hours":1.0,"label":"marginal","mean_quality":0.42,"start":"2027-04-04T17:55Z","start_local":"20:55"},"dec":24.11388889,"moon_separation":69.4,"name":"M45","quality_hours":0.49,"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":7,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":181.1,"t":"2027-04-04T13:20Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-04-04T17:20Z","end_local":"20:20","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-04-04T16:45Z","start_local":"19:45"},{"end":"2027-04-04T17:55Z","end_local":"20:55","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2027-04-04T17:20Z","start_local":"20:20"},{"end":"2027-04-04T18:55Z","end_local":"21:55","hours":1.0,"label":"marginal","mean_quality":0.42,"start":"2027-04-04T17:55Z","start_local":"20:55"},{"end":"2027-04-05T04:00Z","end_local":"07:00","hours":9.08,"label":"unusable","mean_quality":0.0,"start":"2027-04-04T18:55Z","start_local":"21:55"}]}],"unscheduled":[],"warnings":[]}