{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-03-16","schedule":[{"end":"2026-03-17T04:30Z","end_local":"06:30","hours":12.08,"mean_quality":0.0,"start":"2026-03-16T16:25Z","start_local":"18:25","target":null}],"targets":[{"best_window":null,"dec":-5.3876,"moon_separation":110.0,"name":"M42","quality_hours":0.04,"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":1,"score_astronomy":38,"score_weather":2,"transit":{"airmass":1.47,"alt":42.9,"az":179.8,"t":"2026-03-16T16:20Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-03-16T20:00Z","end_local":"22:00","hours":3.58,"label":"unusable","mean_quality":0.0,"start":"2026-03-16T16:25Z","start_local":"18:25"},{"end":"2026-03-16T20:10Z","end_local":"22:10","hours":0.17,"label":"poor","mean_quality":0.23,"start":"2026-03-16T20:00Z","start_local":"22:00"},{"end":"2026-03-17T04:30Z","end_local":"06:30","hours":8.33,"label":"unusable","mean_quality":0.0,"start":"2026-03-16T20:10Z","start_local":"22:10"}]}],"unscheduled":[{"name":"M42","why":"no usable window tonight"}],"warnings":[]}