{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-01-09","schedule":[{"end":"2026-01-09T16:15Z","end_local":"18:15","hours":1.17,"mean_quality":0.0,"start":"2026-01-09T15:05Z","start_local":"17:05","target":null},{"end":"2026-01-09T17:00Z","end_local":"19:00","hours":0.75,"mean_quality":0.49,"start":"2026-01-09T16:15Z","start_local":"18:15","target":"M45"},{"end":"2026-01-09T18:00Z","end_local":"20:00","hours":1.0,"mean_quality":0.0,"start":"2026-01-09T17:00Z","start_local":"19:00","target":null},{"end":"2026-01-09T22:00Z","end_local":"00:00","hours":4.0,"mean_quality":0.66,"start":"2026-01-09T18:00Z","start_local":"20:00","target":"M45"},{"end":"2026-01-10T05:50Z","end_local":"07:50","hours":7.83,"mean_quality":0.0,"start":"2026-01-09T22:00Z","start_local":"00:00","target":null}],"targets":[{"best_window":{"end":"2026-01-09T21:05Z","end_local":"23:05","hours":2.08,"label":"good","mean_quality":0.73,"start":"2026-01-09T19:00Z","start_local":"21:00"},"dec":24.11388889,"moon_separation":131.9,"name":"M45","quality_hours":3.24,"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":44,"score_astronomy":100,"score_weather":44,"transit":{"airmass":1.05,"alt":72.5,"az":178.7,"t":"2026-01-09T18:50Z"},"verdict":"marginal","weather_known":true,"windows":[{"end":"2026-01-09T15:40Z","end_local":"17:40","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-01-09T15:05Z","start_local":"17:05"},{"end":"2026-01-09T16:15Z","end_local":"18:15","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2026-01-09T15:40Z","start_local":"17:40"},{"end":"2026-01-09T16:50Z","end_local":"18:50","hours":0.58,"label":"marginal","mean_quality":0.4,"start":"2026-01-09T16:15Z","start_local":"18:15"},{"end":"2026-01-09T17:00Z","end_local":"19:00","hours":0.17,"label":"good","mean_quality":0.82,"start":"2026-01-09T16:50Z","start_local":"18:50"},{"end":"2026-01-09T18:00Z","end_local":"20:00","hours":1.0,"label":"unusable","mean_quality":0.0,"start":"2026-01-09T17:00Z","start_local":"19:00"},{"end":"2026-01-09T19:00Z","end_local":"21:00","hours":1.0,"label":"marginal","mean_quality":0.59,"start":"2026-01-09T18:00Z","start_local":"20:00"},{"end":"2026-01-09T21:05Z","end_local":"23:05","hours":2.08,"label":"good","mean_quality":0.73,"start":"2026-01-09T19:00Z","start_local":"21:00"},{"end":"2026-01-09T22:00Z","end_local":"00:00","hours":0.92,"label":"marginal","mean_quality":0.58,"start":"2026-01-09T21:05Z","start_local":"23:05"},{"end":"2026-01-09T23:00Z","end_local":"01:00","hours":1.0,"label":"unusable","mean_quality":0.0,"start":"2026-01-09T22:00Z","start_local":"00:00"},{"end":"2026-01-10T00:00Z","end_local":"02:00","hours":1.0,"label":"poor","mean_quality":0.16,"start":"2026-01-09T23:00Z","start_local":"01:00"},{"end":"2026-01-10T05:50Z","end_local":"07:50","hours":5.83,"label":"unusable","mean_quality":0.0,"start":"2026-01-10T00:00Z","start_local":"02:00"}]}],"unscheduled":[],"warnings":[]}