{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2028-08-27","schedule":[{"end":"2028-08-28T01:45Z","end_local":"04:45","hours":8.75,"mean_quality":0.0,"start":"2028-08-27T17:00Z","start_local":"20:00","target":null},{"end":"2028-08-28T02:05Z","end_local":"05:05","hours":0.33,"mean_quality":0.47,"start":"2028-08-28T01:45Z","start_local":"04:45","target":"M42"},{"end":"2028-08-28T02:15Z","end_local":"05:15","hours":0.17,"mean_quality":0.0,"start":"2028-08-28T02:05Z","start_local":"05:05","target":null},{"end":"2028-08-28T02:40Z","end_local":"05:40","hours":0.42,"mean_quality":0.34,"start":"2028-08-28T02:15Z","start_local":"05:15","target":"M42"},{"end":"2028-08-28T03:45Z","end_local":"06:45","hours":1.08,"mean_quality":0.0,"start":"2028-08-28T02:40Z","start_local":"05:40","target":null}],"targets":[{"best_window":{"end":"2028-08-28T02:05Z","end_local":"05:05","hours":0.33,"label":"marginal","mean_quality":0.47,"start":"2028-08-28T01:45Z","start_local":"04:45"},"dec":-5.3876,"moon_separation":147.5,"name":"M42","quality_hours":0.41,"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":5,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":180.0,"t":"2028-08-28T05:30Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2028-08-28T01:45Z","end_local":"04:45","hours":8.75,"label":"unusable","mean_quality":0.0,"start":"2028-08-27T17:00Z","start_local":"20:00"},{"end":"2028-08-28T02:05Z","end_local":"05:05","hours":0.33,"label":"marginal","mean_quality":0.47,"start":"2028-08-28T01:45Z","start_local":"04:45"},{"end":"2028-08-28T02:15Z","end_local":"05:15","hours":0.17,"label":"poor","mean_quality":0.28,"start":"2028-08-28T02:05Z","start_local":"05:05"},{"end":"2028-08-28T02:40Z","end_local":"05:40","hours":0.42,"label":"marginal","mean_quality":0.34,"start":"2028-08-28T02:15Z","start_local":"05:15"},{"end":"2028-08-28T03:15Z","end_local":"06:15","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2028-08-28T02:40Z","start_local":"05:40"},{"end":"2028-08-28T03:45Z","end_local":"06:45","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-08-28T03:15Z","start_local":"06:15"}]}],"unscheduled":[],"warnings":[]}