{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-04-15","schedule":[{"end":"2027-04-16T03:45Z","end_local":"06:45","hours":10.75,"mean_quality":0.0,"start":"2027-04-15T17:00Z","start_local":"20:00","target":null}],"targets":[{"best_window":null,"dec":-5.3876,"moon_separation":62.7,"name":"M42","quality_hours":0.05,"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":0,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":180.5,"t":"2027-04-15T14:25Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-04-15T17:35Z","end_local":"20:35","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-04-15T17:00Z","start_local":"20:00"},{"end":"2027-04-15T18:15Z","end_local":"21:15","hours":0.67,"label":"poor","mean_quality":0.07,"start":"2027-04-15T17:35Z","start_local":"20:35"},{"end":"2027-04-16T03:45Z","end_local":"06:45","hours":9.5,"label":"unusable","mean_quality":0.0,"start":"2027-04-15T18:15Z","start_local":"21:15"}]}],"unscheduled":[{"name":"M42","why":"no usable window tonight"}],"warnings":[]}
