{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-09-17","schedule":[{"end":"2027-09-18T00:45Z","end_local":"03:45","hours":8.33,"mean_quality":0.0,"start":"2027-09-17T16:25Z","start_local":"19:25","target":null},{"end":"2027-09-18T02:30Z","end_local":"05:30","hours":1.75,"mean_quality":0.43,"start":"2027-09-18T00:45Z","start_local":"03:45","target":"M42"},{"end":"2027-09-18T04:05Z","end_local":"07:05","hours":1.58,"mean_quality":0.0,"start":"2027-09-18T02:30Z","start_local":"05:30","target":null}],"targets":[{"best_window":{"end":"2027-09-18T02:30Z","end_local":"05:30","hours":1.75,"label":"marginal","mean_quality":0.43,"start":"2027-09-18T00:45Z","start_local":"03:45"},"dec":-5.3876,"moon_separation":71.3,"name":"M42","quality_hours":1.05,"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":13,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":179.9,"t":"2027-09-18T04:10Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-09-18T00:25Z","end_local":"03:25","hours":8.0,"label":"unusable","mean_quality":0.0,"start":"2027-09-17T16:25Z","start_local":"19:25"},{"end":"2027-09-18T00:45Z","end_local":"03:45","hours":0.33,"label":"poor","mean_quality":0.26,"start":"2027-09-18T00:25Z","start_local":"03:25"},{"end":"2027-09-18T02:30Z","end_local":"05:30","hours":1.75,"label":"marginal","mean_quality":0.43,"start":"2027-09-18T00:45Z","start_local":"03:45"},{"end":"2027-09-18T03:40Z","end_local":"06:40","hours":1.17,"label":"poor","mean_quality":0.17,"start":"2027-09-18T02:30Z","start_local":"05:30"},{"end":"2027-09-18T04:05Z","end_local":"07:05","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2027-09-18T03:40Z","start_local":"06:40"}]}],"unscheduled":[],"warnings":[]}
