{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-02-17","schedule":[{"end":"2027-02-17T17:30Z","end_local":"19:30","hours":1.58,"mean_quality":0.0,"start":"2027-02-17T15:55Z","start_local":"17:55","target":null},{"end":"2027-02-17T20:55Z","end_local":"22:55","hours":3.42,"mean_quality":0.33,"start":"2027-02-17T17:30Z","start_local":"19:30","target":"M42"},{"end":"2027-02-18T05:15Z","end_local":"07:15","hours":8.33,"mean_quality":0.0,"start":"2027-02-17T20:55Z","start_local":"22:55","target":null}],"targets":[{"best_window":{"end":"2027-02-17T20:55Z","end_local":"22:55","hours":3.42,"label":"marginal","mean_quality":0.33,"start":"2027-02-17T17:30Z","start_local":"19:30"},"dec":-5.3876,"moon_separation":39.1,"name":"M42","quality_hours":1.5,"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":180.8,"t":"2027-02-17T18:10Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-02-17T16:25Z","end_local":"18:25","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-02-17T15:55Z","start_local":"17:55"},{"end":"2027-02-17T17:30Z","end_local":"19:30","hours":1.08,"label":"poor","mean_quality":0.11,"start":"2027-02-17T16:25Z","start_local":"18:25"},{"end":"2027-02-17T20:55Z","end_local":"22:55","hours":3.42,"label":"marginal","mean_quality":0.33,"start":"2027-02-17T17:30Z","start_local":"19:30"},{"end":"2027-02-17T22:00Z","end_local":"00:00","hours":1.08,"label":"poor","mean_quality":0.23,"start":"2027-02-17T20:55Z","start_local":"22:55"},{"end":"2027-02-18T05:15Z","end_local":"07:15","hours":7.25,"label":"unusable","mean_quality":0.0,"start":"2027-02-17T22:00Z","start_local":"00:00"}]}],"unscheduled":[],"warnings":[]}