{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-01-09","schedule":[{"end":"2026-01-09T16:55Z","end_local":"18:55","hours":1.83,"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":0.08,"mean_quality":0.34,"start":"2026-01-09T16:55Z","start_local":"18:55","target":"M42"},{"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":0.58,"start":"2026-01-09T18:00Z","start_local":"20:00","target":"M42"},{"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":"2026-01-09T21:00Z","end_local":"23:00","hours":2.0,"label":"good","mean_quality":0.64,"start":"2026-01-09T19:00Z","start_local":"21:00"},"dec":-5.3876,"moon_separation":104.9,"name":"M42","quality_hours":2.49,"ra":83.8201,"resolved":{"common_name":"Great Orion Nebula","dec":-5.3876,"name":"M 42","ra":83.8201,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M42","source":"sesame","type":"HII","type_text":"HII region \u2014 a star-forming nebula"},"score":38,"score_astronomy":89,"score_weather":43,"transit":{"airmass":1.47,"alt":42.9,"az":180.0,"t":"2026-01-09T20:40Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-01-09T16:55Z","end_local":"18:55","hours":1.83,"label":"unusable","mean_quality":0.0,"start":"2026-01-09T15:05Z","start_local":"17:05"},{"end":"2026-01-09T17:00Z","end_local":"19:00","hours":0.08,"label":"marginal","mean_quality":0.34,"start":"2026-01-09T16:55Z","start_local":"18:55"},{"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":0.49,"start":"2026-01-09T18:00Z","start_local":"20:00"},{"end":"2026-01-09T21:00Z","end_local":"23:00","hours":2.0,"label":"good","mean_quality":0.64,"start":"2026-01-09T19:00Z","start_local":"21:00"},{"end":"2026-01-09T22:00Z","end_local":"00:00","hours":1.0,"label":"marginal","mean_quality":0.54,"start":"2026-01-09T21:00Z","start_local":"23:00"},{"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":0.15,"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":[]}