{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-04-04","schedule":[{"end":"2025-04-04T18:40Z","end_local":"21:40","hours":1.92,"mean_quality":0.0,"start":"2025-04-04T16:45Z","start_local":"19:45","target":null},{"end":"2025-04-04T19:00Z","end_local":"22:00","hours":0.33,"mean_quality":0.31,"start":"2025-04-04T18:40Z","start_local":"21:40","target":"3C 273"},{"end":"2025-04-05T04:00Z","end_local":"07:00","hours":9.0,"mean_quality":0.0,"start":"2025-04-04T19:00Z","start_local":"22:00","target":null}],"targets":[{"best_window":{"end":"2025-04-04T19:00Z","end_local":"22:00","hours":0.33,"label":"marginal","mean_quality":0.31,"start":"2025-04-04T18:40Z","start_local":"21:40"},"dec":2.05238823,"moon_separation":82.1,"name":"3C 273","quality_hours":0.23,"ra":187.27791594,"resolved":{"dec":2.05238823,"morphology":"E3","name":"3C 273","ra":187.27791594,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=3C%20273","source":"sesame","type":"BLL","type_text":"BL Lac object \u2014 a blazar","vmag":14.83},"score":3,"score_astronomy":86,"score_weather":4,"transit":{"airmass":1.3,"alt":50.2,"az":180.9,"t":"2025-04-04T22:00Z"},"verdict":"poor","weather_known":true,"windows":[{"end":"2025-04-04T17:40Z","end_local":"20:40","hours":0.92,"label":"unusable","mean_quality":0.0,"start":"2025-04-04T16:45Z","start_local":"19:45"},{"end":"2025-04-04T18:40Z","end_local":"21:40","hours":1.0,"label":"poor","mean_quality":0.13,"start":"2025-04-04T17:40Z","start_local":"20:40"},{"end":"2025-04-04T19:00Z","end_local":"22:00","hours":0.33,"label":"marginal","mean_quality":0.31,"start":"2025-04-04T18:40Z","start_local":"21:40"},{"end":"2025-04-05T04:00Z","end_local":"07:00","hours":9.0,"label":"unusable","mean_quality":0.0,"start":"2025-04-04T19:00Z","start_local":"22:00"}]}],"unscheduled":[],"warnings":[]}