{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2046-09-20","schedule":[{"end":"2046-09-20T20:50Z","end_local":"23:50","hours":4.5,"mean_quality":0.0,"start":"2046-09-20T16:20Z","start_local":"19:20","target":null},{"end":"2046-09-21T02:35Z","end_local":"05:35","hours":5.75,"mean_quality":0.43,"start":"2046-09-20T20:50Z","start_local":"23:50","target":"M45"},{"end":"2046-09-21T04:10Z","end_local":"07:10","hours":1.58,"mean_quality":0.0,"start":"2046-09-21T02:35Z","start_local":"05:35","target":null}],"targets":[{"best_window":{"end":"2046-09-21T02:35Z","end_local":"05:35","hours":5.75,"label":"marginal","mean_quality":0.43,"start":"2046-09-20T20:50Z","start_local":"23:50"},"dec":24.11388889,"moon_separation":0.6,"name":"M45","quality_hours":2.72,"ra":56.60083333,"resolved":{"common_name":"Seven Sisters","dec":24.11388889,"name":"Cl Melotte 22","ra":56.60083333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"},"score":null,"score_astronomy":31,"score_weather":null,"transit":{"airmass":1.05,"alt":72.6,"az":180.2,"t":"2046-09-21T02:10Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2046-09-20T20:35Z","end_local":"23:35","hours":4.25,"label":"unusable","mean_quality":0.0,"start":"2046-09-20T16:20Z","start_local":"19:20"},{"end":"2046-09-20T20:50Z","end_local":"23:50","hours":0.25,"label":"poor","mean_quality":0.27,"start":"2046-09-20T20:35Z","start_local":"23:35"},{"end":"2046-09-21T02:35Z","end_local":"05:35","hours":5.75,"label":"marginal","mean_quality":0.43,"start":"2046-09-20T20:50Z","start_local":"23:50"},{"end":"2046-09-21T03:40Z","end_local":"06:40","hours":1.08,"label":"poor","mean_quality":0.15,"start":"2046-09-21T02:35Z","start_local":"05:35"},{"end":"2046-09-21T04:10Z","end_local":"07:10","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2046-09-21T03:40Z","start_local":"06:40"}]}],"unscheduled":[],"warnings":[]}