{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-07-21","schedule":[{"end":"2026-07-22T01:00Z","end_local":"04:00","hours":7.25,"mean_quality":0.0,"start":"2026-07-21T17:45Z","start_local":"20:45","target":null},{"end":"2026-07-22T01:10Z","end_local":"04:10","hours":0.17,"mean_quality":0.52,"start":"2026-07-22T01:00Z","start_local":"04:00","target":"M45"},{"end":"2026-07-22T01:20Z","end_local":"04:20","hours":0.17,"mean_quality":0.0,"start":"2026-07-22T01:10Z","start_local":"04:10","target":null},{"end":"2026-07-22T01:55Z","end_local":"04:55","hours":0.58,"mean_quality":0.34,"start":"2026-07-22T01:20Z","start_local":"04:20","target":"M45"},{"end":"2026-07-22T03:10Z","end_local":"06:10","hours":1.25,"mean_quality":0.0,"start":"2026-07-22T01:55Z","start_local":"04:55","target":null}],"targets":[{"best_window":{"end":"2026-07-22T01:55Z","end_local":"04:55","hours":0.58,"label":"marginal","mean_quality":0.34,"start":"2026-07-22T01:20Z","start_local":"04:20"},"dec":24.11388889,"moon_separation":154.8,"name":"M45","quality_hours":0.42,"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":11,"score_weather":61,"transit":{"airmass":1.05,"alt":72.5,"az":180.8,"t":"2026-07-22T06:10Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-07-22T01:00Z","end_local":"04:00","hours":7.25,"label":"unusable","mean_quality":0.0,"start":"2026-07-21T17:45Z","start_local":"20:45"},{"end":"2026-07-22T01:10Z","end_local":"04:10","hours":0.17,"label":"marginal","mean_quality":0.52,"start":"2026-07-22T01:00Z","start_local":"04:00"},{"end":"2026-07-22T01:20Z","end_local":"04:20","hours":0.17,"label":"poor","mean_quality":0.29,"start":"2026-07-22T01:10Z","start_local":"04:10"},{"end":"2026-07-22T01:55Z","end_local":"04:55","hours":0.58,"label":"marginal","mean_quality":0.34,"start":"2026-07-22T01:20Z","start_local":"04:20"},{"end":"2026-07-22T02:35Z","end_local":"05:35","hours":0.67,"label":"poor","mean_quality":0.13,"start":"2026-07-22T01:55Z","start_local":"04:55"},{"end":"2026-07-22T03:10Z","end_local":"06:10","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-07-22T02:35Z","start_local":"05:35"}]}],"unscheduled":[],"warnings":[]}