{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-05-20","schedule":[{"end":"2026-05-21T00:50Z","end_local":"03:50","hours":7.25,"mean_quality":0.0,"start":"2026-05-20T17:35Z","start_local":"20:35","target":null},{"end":"2026-05-21T01:00Z","end_local":"04:00","hours":0.17,"mean_quality":0.32,"start":"2026-05-21T00:50Z","start_local":"03:50","target":"M31"},{"end":"2026-05-21T03:00Z","end_local":"06:00","hours":2.0,"mean_quality":0.0,"start":"2026-05-21T01:00Z","start_local":"04:00","target":null}],"targets":[{"best_window":{"end":"2026-05-21T01:00Z","end_local":"04:00","hours":0.17,"label":"marginal","mean_quality":0.32,"start":"2026-05-21T00:50Z","start_local":"03:50"},"dec":41.26875,"moon_separation":87.9,"name":"M31","quality_hours":0.36,"ra":10.68470833,"resolved":{"common_name":"Andromeda Galaxy","dec":41.26875,"morphology":"SA(s)b","name":"M 31","ra":10.68470833,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M31","source":"sesame","type":"AGN","type_text":"galaxy with an active nucleus","vmag":3.44},"score":5,"score_astronomy":8,"score_weather":66,"transit":{"airmass":1.0,"alt":89.7,"az":200.3,"t":"2026-05-21T07:10Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2026-05-21T00:35Z","end_local":"03:35","hours":7.0,"label":"unusable","mean_quality":0.0,"start":"2026-05-20T17:35Z","start_local":"20:35"},{"end":"2026-05-21T00:50Z","end_local":"03:50","hours":0.25,"label":"poor","mean_quality":0.27,"start":"2026-05-21T00:35Z","start_local":"03:35"},{"end":"2026-05-21T01:00Z","end_local":"04:00","hours":0.17,"label":"marginal","mean_quality":0.32,"start":"2026-05-21T00:50Z","start_local":"03:50"},{"end":"2026-05-21T02:25Z","end_local":"05:25","hours":1.42,"label":"poor","mean_quality":0.17,"start":"2026-05-21T01:00Z","start_local":"04:00"},{"end":"2026-05-21T03:00Z","end_local":"06:00","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-05-21T02:25Z","start_local":"05:25"}]}],"unscheduled":[],"warnings":[]}
