{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-03-09","schedule":[{"end":"2026-03-09T17:25Z","end_local":"19:25","hours":1.08,"mean_quality":0.0,"start":"2026-03-09T16:20Z","start_local":"18:20","target":null},{"end":"2026-03-09T18:00Z","end_local":"20:00","hours":0.58,"mean_quality":0.37,"start":"2026-03-09T17:25Z","start_local":"19:25","target":"M45"},{"end":"2026-03-09T19:00Z","end_local":"21:00","hours":1.0,"mean_quality":0.0,"start":"2026-03-09T18:00Z","start_local":"20:00","target":null},{"end":"2026-03-09T20:40Z","end_local":"22:40","hours":1.67,"mean_quality":0.48,"start":"2026-03-09T19:00Z","start_local":"21:00","target":"M45"},{"end":"2026-03-10T04:45Z","end_local":"06:45","hours":8.08,"mean_quality":0.0,"start":"2026-03-09T20:40Z","start_local":"22:40","target":null}],"targets":[{"best_window":{"end":"2026-03-09T18:00Z","end_local":"20:00","hours":0.08,"label":"good","mean_quality":0.64,"start":"2026-03-09T17:55Z","start_local":"19:55"},"dec":24.11388889,"moon_separation":176.2,"name":"M45","quality_hours":1.21,"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":28,"score_astronomy":57,"score_weather":49,"transit":{"airmass":1.05,"alt":72.5,"az":180.2,"t":"2026-03-09T15:00Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-03-09T16:50Z","end_local":"18:50","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2026-03-09T16:20Z","start_local":"18:20"},{"end":"2026-03-09T17:25Z","end_local":"19:25","hours":0.58,"label":"poor","mean_quality":0.11,"start":"2026-03-09T16:50Z","start_local":"18:50"},{"end":"2026-03-09T17:55Z","end_local":"19:55","hours":0.5,"label":"marginal","mean_quality":0.33,"start":"2026-03-09T17:25Z","start_local":"19:25"},{"end":"2026-03-09T18:00Z","end_local":"20:00","hours":0.08,"label":"good","mean_quality":0.64,"start":"2026-03-09T17:55Z","start_local":"19:55"},{"end":"2026-03-09T19:00Z","end_local":"21:00","hours":1.0,"label":"poor","mean_quality":0.13,"start":"2026-03-09T18:00Z","start_local":"20:00"},{"end":"2026-03-09T20:40Z","end_local":"22:40","hours":1.67,"label":"marginal","mean_quality":0.48,"start":"2026-03-09T19:00Z","start_local":"21:00"},{"end":"2026-03-10T04:45Z","end_local":"06:45","hours":8.08,"label":"unusable","mean_quality":0.0,"start":"2026-03-09T20:40Z","start_local":"22:40"}]}],"unscheduled":[],"warnings":[]}
