{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-02-11","schedule":[{"end":"2027-02-11T16:55Z","end_local":"18:55","hours":1.17,"mean_quality":0.0,"start":"2027-02-11T15:45Z","start_local":"17:45","target":null},{"end":"2027-02-11T22:20Z","end_local":"00:20","hours":5.42,"mean_quality":0.72,"start":"2027-02-11T16:55Z","start_local":"18:55","target":"M42"},{"end":"2027-02-12T05:25Z","end_local":"07:25","hours":7.08,"mean_quality":0.0,"start":"2027-02-11T22:20Z","start_local":"00:20","target":null}],"targets":[{"best_window":{"end":"2027-02-11T21:50Z","end_local":"23:50","hours":4.42,"label":"good","mean_quality":0.78,"start":"2027-02-11T17:25Z","start_local":"19:25"},"dec":-5.3876,"moon_separation":66.3,"name":"M42","quality_hours":3.96,"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":81,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":179.6,"t":"2027-02-11T18:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-02-11T16:20Z","end_local":"18:20","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-02-11T15:45Z","start_local":"17:45"},{"end":"2027-02-11T16:55Z","end_local":"18:55","hours":0.58,"label":"poor","mean_quality":0.11,"start":"2027-02-11T16:20Z","start_local":"18:20"},{"end":"2027-02-11T17:25Z","end_local":"19:25","hours":0.5,"label":"marginal","mean_quality":0.38,"start":"2027-02-11T16:55Z","start_local":"18:55"},{"end":"2027-02-11T21:50Z","end_local":"23:50","hours":4.42,"label":"good","mean_quality":0.78,"start":"2027-02-11T17:25Z","start_local":"19:25"},{"end":"2027-02-11T22:20Z","end_local":"00:20","hours":0.5,"label":"marginal","mean_quality":0.51,"start":"2027-02-11T21:50Z","start_local":"23:50"},{"end":"2027-02-12T05:25Z","end_local":"07:25","hours":7.08,"label":"unusable","mean_quality":0.0,"start":"2027-02-11T22:20Z","start_local":"00:20"}]}],"unscheduled":[],"warnings":[]}
