{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2031-02-04","schedule":[{"end":"2031-02-04T17:15Z","end_local":"19:15","hours":1.67,"mean_quality":0.0,"start":"2031-02-04T15:35Z","start_local":"17:35","target":null},{"end":"2031-02-04T18:30Z","end_local":"20:30","hours":1.25,"mean_quality":0.31,"start":"2031-02-04T17:15Z","start_local":"19:15","target":"M42"},{"end":"2031-02-05T05:30Z","end_local":"07:30","hours":11.0,"mean_quality":0.0,"start":"2031-02-04T18:30Z","start_local":"20:30","target":null}],"targets":[{"best_window":{"end":"2031-02-04T18:30Z","end_local":"20:30","hours":1.25,"label":"marginal","mean_quality":0.31,"start":"2031-02-04T17:15Z","start_local":"19:15"},"dec":-5.3876,"moon_separation":34.0,"name":"M42","quality_hours":1.6,"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":13,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":180.4,"t":"2031-02-04T19:00Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2031-02-04T16:10Z","end_local":"18:10","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2031-02-04T15:35Z","start_local":"17:35"},{"end":"2031-02-04T17:15Z","end_local":"19:15","hours":1.08,"label":"poor","mean_quality":0.11,"start":"2031-02-04T16:10Z","start_local":"18:10"},{"end":"2031-02-04T18:30Z","end_local":"20:30","hours":1.25,"label":"marginal","mean_quality":0.31,"start":"2031-02-04T17:15Z","start_local":"19:15"},{"end":"2031-02-04T22:50Z","end_local":"00:50","hours":4.33,"label":"poor","mean_quality":0.25,"start":"2031-02-04T18:30Z","start_local":"20:30"},{"end":"2031-02-05T05:30Z","end_local":"07:30","hours":6.67,"label":"unusable","mean_quality":0.0,"start":"2031-02-04T22:50Z","start_local":"00:50"}]}],"unscheduled":[],"warnings":[]}