{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-01-10","schedule":[{"end":"2026-01-10T19:00Z","end_local":"21:00","hours":3.92,"mean_quality":0.0,"start":"2026-01-10T15:05Z","start_local":"17:05","target":null},{"end":"2026-01-10T21:00Z","end_local":"23:00","hours":2.0,"mean_quality":0.68,"start":"2026-01-10T19:00Z","start_local":"21:00","target":"M42"},{"end":"2026-01-10T22:00Z","end_local":"00:00","hours":1.0,"mean_quality":0.0,"start":"2026-01-10T21:00Z","start_local":"23:00","target":null},{"end":"2026-01-10T23:35Z","end_local":"01:35","hours":1.58,"mean_quality":0.35,"start":"2026-01-10T22:00Z","start_local":"00:00","target":"M42"},{"end":"2026-01-11T00:00Z","end_local":"02:00","hours":0.42,"mean_quality":0.0,"start":"2026-01-10T23:35Z","start_local":"01:35","target":null},{"end":"2026-01-11T00:10Z","end_local":"02:10","hours":0.17,"mean_quality":0.32,"start":"2026-01-11T00:00Z","start_local":"02:00","target":"M42"},{"end":"2026-01-11T05:50Z","end_local":"07:50","hours":5.67,"mean_quality":0.0,"start":"2026-01-11T00:10Z","start_local":"02:10","target":null}],"targets":[{"best_window":{"end":"2026-01-10T20:00Z","end_local":"22:00","hours":1.0,"label":"good","mean_quality":0.79,"start":"2026-01-10T19:00Z","start_local":"21:00"},"dec":-5.3876,"moon_separation":114.8,"name":"M42","quality_hours":2.37,"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":36,"score_astronomy":89,"score_weather":40,"transit":{"airmass":1.47,"alt":42.9,"az":179.6,"t":"2026-01-10T20:35Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-01-10T19:00Z","end_local":"21:00","hours":3.92,"label":"unusable","mean_quality":0.0,"start":"2026-01-10T15:05Z","start_local":"17:05"},{"end":"2026-01-10T20:00Z","end_local":"22:00","hours":1.0,"label":"good","mean_quality":0.79,"start":"2026-01-10T19:00Z","start_local":"21:00"},{"end":"2026-01-10T21:00Z","end_local":"23:00","hours":1.0,"label":"marginal","mean_quality":0.56,"start":"2026-01-10T20:00Z","start_local":"22:00"},{"end":"2026-01-10T22:00Z","end_local":"00:00","hours":1.0,"label":"poor","mean_quality":0.23,"start":"2026-01-10T21:00Z","start_local":"23:00"},{"end":"2026-01-10T23:35Z","end_local":"01:35","hours":1.58,"label":"marginal","mean_quality":0.35,"start":"2026-01-10T22:00Z","start_local":"00:00"},{"end":"2026-01-11T00:00Z","end_local":"02:00","hours":0.42,"label":"poor","mean_quality":0.27,"start":"2026-01-10T23:35Z","start_local":"01:35"},{"end":"2026-01-11T00:10Z","end_local":"02:10","hours":0.17,"label":"marginal","mean_quality":0.32,"start":"2026-01-11T00:00Z","start_local":"02:00"},{"end":"2026-01-11T00:25Z","end_local":"02:25","hours":0.25,"label":"poor","mean_quality":0.27,"start":"2026-01-11T00:10Z","start_local":"02:10"},{"end":"2026-01-11T05:50Z","end_local":"07:50","hours":5.42,"label":"unusable","mean_quality":0.0,"start":"2026-01-11T00:25Z","start_local":"02:25"}]}],"unscheduled":[],"warnings":[]}