{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2026-12-28","schedule":[{"end":"2026-12-28T17:45Z","end_local":"19:45","hours":2.83,"mean_quality":0.0,"start":"2026-12-28T14:55Z","start_local":"16:55","target":null},{"end":"2026-12-29T01:20Z","end_local":"03:20","hours":7.58,"mean_quality":0.68,"start":"2026-12-28T17:45Z","start_local":"19:45","target":"M42"},{"end":"2026-12-29T05:50Z","end_local":"07:50","hours":4.5,"mean_quality":0.0,"start":"2026-12-29T01:20Z","start_local":"03:20","target":null}],"targets":[{"best_window":{"end":"2026-12-29T00:15Z","end_local":"02:15","hours":6.0,"label":"good","mean_quality":0.74,"start":"2026-12-28T18:15Z","start_local":"20:15"},"dec":-5.3876,"moon_separation":81.3,"name":"M42","quality_hours":5.16,"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":null,"score_astronomy":87,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":180.6,"t":"2026-12-28T21:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-28T17:45Z","end_local":"19:45","hours":2.83,"label":"unusable","mean_quality":0.0,"start":"2026-12-28T14:55Z","start_local":"16:55"},{"end":"2026-12-28T18:15Z","end_local":"20:15","hours":0.5,"label":"marginal","mean_quality":0.51,"start":"2026-12-28T17:45Z","start_local":"19:45"},{"end":"2026-12-29T00:15Z","end_local":"02:15","hours":6.0,"label":"good","mean_quality":0.74,"start":"2026-12-28T18:15Z","start_local":"20:15"},{"end":"2026-12-29T01:20Z","end_local":"03:20","hours":1.08,"label":"marginal","mean_quality":0.45,"start":"2026-12-29T00:15Z","start_local":"02:15"},{"end":"2026-12-29T05:50Z","end_local":"07:50","hours":4.5,"label":"unusable","mean_quality":0.0,"start":"2026-12-29T01:20Z","start_local":"03:20"}]}],"unscheduled":[],"warnings":[]}