{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-02-03","schedule":[{"end":"2026-02-03T16:45Z","end_local":"18:45","hours":1.17,"mean_quality":0.0,"start":"2026-02-03T15:35Z","start_local":"17:35","target":null},{"end":"2026-02-03T17:00Z","end_local":"19:00","hours":0.25,"mean_quality":0.37,"start":"2026-02-03T16:45Z","start_local":"18:45","target":"M45"},{"end":"2026-02-04T05:35Z","end_local":"07:35","hours":12.58,"mean_quality":0.0,"start":"2026-02-03T17:00Z","start_local":"19:00","target":null}],"targets":[{"best_window":{"end":"2026-02-03T17:00Z","end_local":"19:00","hours":0.25,"label":"marginal","mean_quality":0.37,"start":"2026-02-03T16:45Z","start_local":"18:45"},"dec":24.11388889,"moon_separation":101.1,"name":"M45","quality_hours":0.31,"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":7,"score_astronomy":100,"score_weather":7,"transit":{"airmass":1.05,"alt":72.5,"az":181.2,"t":"2026-02-03T17:15Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-02-03T16:10Z","end_local":"18:10","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-02-03T15:35Z","start_local":"17:35"},{"end":"2026-02-03T16:45Z","end_local":"18:45","hours":0.58,"label":"poor","mean_quality":0.11,"start":"2026-02-03T16:10Z","start_local":"18:10"},{"end":"2026-02-03T17:00Z","end_local":"19:00","hours":0.25,"label":"marginal","mean_quality":0.37,"start":"2026-02-03T16:45Z","start_local":"18:45"},{"end":"2026-02-03T18:00Z","end_local":"20:00","hours":1.0,"label":"poor","mean_quality":0.16,"start":"2026-02-03T17:00Z","start_local":"19:00"},{"end":"2026-02-04T05:35Z","end_local":"07:35","hours":11.58,"label":"unusable","mean_quality":0.0,"start":"2026-02-03T18:00Z","start_local":"20:00"}]}],"unscheduled":[],"warnings":[]}