{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2031-12-24","schedule":[{"end":"2031-12-24T18:50Z","end_local":"20:50","hours":3.92,"mean_quality":0.0,"start":"2031-12-24T14:55Z","start_local":"16:55","target":null},{"end":"2031-12-25T01:25Z","end_local":"03:25","hours":6.58,"mean_quality":0.4,"start":"2031-12-24T18:50Z","start_local":"20:50","target":"M42"},{"end":"2031-12-25T05:50Z","end_local":"07:50","hours":4.42,"mean_quality":0.0,"start":"2031-12-25T01:25Z","start_local":"03:25","target":null}],"targets":[{"best_window":{"end":"2031-12-25T01:25Z","end_local":"03:25","hours":6.58,"label":"marginal","mean_quality":0.4,"start":"2031-12-24T18:50Z","start_local":"20:50"},"dec":-5.3876,"moon_separation":42.4,"name":"M42","quality_hours":2.85,"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":33,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":180.0,"t":"2031-12-24T21:45Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2031-12-24T18:00Z","end_local":"20:00","hours":3.08,"label":"unusable","mean_quality":0.0,"start":"2031-12-24T14:55Z","start_local":"16:55"},{"end":"2031-12-24T18:50Z","end_local":"20:50","hours":0.83,"label":"poor","mean_quality":0.23,"start":"2031-12-24T18:00Z","start_local":"20:00"},{"end":"2031-12-25T01:25Z","end_local":"03:25","hours":6.58,"label":"marginal","mean_quality":0.4,"start":"2031-12-24T18:50Z","start_local":"20:50"},{"end":"2031-12-25T01:35Z","end_local":"03:35","hours":0.17,"label":"poor","mean_quality":0.28,"start":"2031-12-25T01:25Z","start_local":"03:25"},{"end":"2031-12-25T05:50Z","end_local":"07:50","hours":4.25,"label":"unusable","mean_quality":0.0,"start":"2031-12-25T01:35Z","start_local":"03:35"}]}],"unscheduled":[],"warnings":[]}