{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-09-12","schedule":[{"end":"2025-09-12T18:00Z","end_local":"21:00","hours":1.42,"mean_quality":0.0,"start":"2025-09-12T16:35Z","start_local":"19:35","target":null},{"end":"2025-09-12T19:00Z","end_local":"22:00","hours":1.0,"mean_quality":0.69,"start":"2025-09-12T18:00Z","start_local":"21:00","target":"M31"},{"end":"2025-09-13T01:00Z","end_local":"04:00","hours":6.0,"mean_quality":0.0,"start":"2025-09-12T19:00Z","start_local":"22:00","target":null},{"end":"2025-09-13T02:25Z","end_local":"05:25","hours":1.42,"mean_quality":0.5,"start":"2025-09-13T01:00Z","start_local":"04:00","target":"M31"},{"end":"2025-09-13T04:00Z","end_local":"07:00","hours":1.58,"mean_quality":0.0,"start":"2025-09-13T02:25Z","start_local":"05:25","target":null}],"targets":[{"best_window":{"end":"2025-09-12T19:00Z","end_local":"22:00","hours":0.75,"label":"good","mean_quality":0.8,"start":"2025-09-12T18:15Z","start_local":"21:15"},"dec":41.26875,"moon_separation":41.4,"name":"M31","quality_hours":1.72,"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":26,"score_astronomy":86,"score_weather":31,"transit":{"airmass":1.0,"alt":89.6,"az":139.2,"t":"2025-09-12T23:35Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-09-12T17:05Z","end_local":"20:05","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2025-09-12T16:35Z","start_local":"19:35"},{"end":"2025-09-12T18:00Z","end_local":"21:00","hours":0.92,"label":"poor","mean_quality":0.14,"start":"2025-09-12T17:05Z","start_local":"20:05"},{"end":"2025-09-12T18:15Z","end_local":"21:15","hours":0.25,"label":"marginal","mean_quality":0.38,"start":"2025-09-12T18:00Z","start_local":"21:00"},{"end":"2025-09-12T19:00Z","end_local":"22:00","hours":0.75,"label":"good","mean_quality":0.8,"start":"2025-09-12T18:15Z","start_local":"21:15"},{"end":"2025-09-13T01:00Z","end_local":"04:00","hours":6.0,"label":"unusable","mean_quality":0.0,"start":"2025-09-12T19:00Z","start_local":"22:00"},{"end":"2025-09-13T02:25Z","end_local":"05:25","hours":1.42,"label":"marginal","mean_quality":0.5,"start":"2025-09-13T01:00Z","start_local":"04:00"},{"end":"2025-09-13T03:35Z","end_local":"06:35","hours":1.17,"label":"poor","mean_quality":0.16,"start":"2025-09-13T02:25Z","start_local":"05:25"},{"end":"2025-09-13T04:00Z","end_local":"07:00","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2025-09-13T03:35Z","start_local":"06:35"}]}],"unscheduled":[],"warnings":[]}
