{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-10-20","schedule":[{"end":"2027-10-20T22:35Z","end_local":"01:35","hours":7.08,"mean_quality":0.0,"start":"2027-10-20T15:30Z","start_local":"18:30","target":null},{"end":"2027-10-21T03:10Z","end_local":"06:10","hours":4.58,"mean_quality":0.41,"start":"2027-10-20T22:35Z","start_local":"01:35","target":"M42"},{"end":"2027-10-21T04:40Z","end_local":"07:40","hours":1.5,"mean_quality":0.0,"start":"2027-10-21T03:10Z","start_local":"06:10","target":null}],"targets":[{"best_window":{"end":"2027-10-21T03:10Z","end_local":"06:10","hours":4.58,"label":"marginal","mean_quality":0.41,"start":"2027-10-20T22:35Z","start_local":"01:35"},"dec":-5.3876,"moon_separation":33.2,"name":"M42","quality_hours":2.12,"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":23,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":179.8,"t":"2027-10-21T02:00Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-10-20T22:15Z","end_local":"01:15","hours":6.75,"label":"unusable","mean_quality":0.0,"start":"2027-10-20T15:30Z","start_local":"18:30"},{"end":"2027-10-20T22:35Z","end_local":"01:35","hours":0.33,"label":"poor","mean_quality":0.27,"start":"2027-10-20T22:15Z","start_local":"01:15"},{"end":"2027-10-21T03:10Z","end_local":"06:10","hours":4.58,"label":"marginal","mean_quality":0.41,"start":"2027-10-20T22:35Z","start_local":"01:35"},{"end":"2027-10-21T04:15Z","end_local":"07:15","hours":1.08,"label":"poor","mean_quality":0.13,"start":"2027-10-21T03:10Z","start_local":"06:10"},{"end":"2027-10-21T04:40Z","end_local":"07:40","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2027-10-21T04:15Z","start_local":"07:15"}]}],"unscheduled":[],"warnings":[]}