{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2025-09-20","schedule":[{"end":"2025-09-20T18:00Z","end_local":"21:00","hours":1.67,"mean_quality":0.0,"start":"2025-09-20T16:20Z","start_local":"19:20","target":null},{"end":"2025-09-20T20:00Z","end_local":"23:00","hours":2.0,"mean_quality":0.65,"start":"2025-09-20T18:00Z","start_local":"21:00","target":"M33"},{"end":"2025-09-20T22:00Z","end_local":"01:00","hours":2.0,"mean_quality":0.0,"start":"2025-09-20T20:00Z","start_local":"23:00","target":null},{"end":"2025-09-21T03:10Z","end_local":"06:10","hours":5.17,"mean_quality":0.9,"start":"2025-09-20T22:00Z","start_local":"01:00","target":"M33"},{"end":"2025-09-21T04:10Z","end_local":"07:10","hours":1.0,"mean_quality":0.0,"start":"2025-09-21T03:10Z","start_local":"06:10","target":null}],"targets":[{"best_window":{"end":"2025-09-21T02:35Z","end_local":"05:35","hours":4.58,"label":"good","mean_quality":0.95,"start":"2025-09-20T22:00Z","start_local":"01:00"},"dec":30.66017511,"moon_separation":131.5,"name":"M33","quality_hours":6.27,"ra":23.46206906,"resolved":{"common_name":"Triangulum Pinwheel","dec":30.66017511,"morphology":"SA(s)cd","name":"M 33","ra":23.46206906,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M33","source":"sesame","type":"GiG","type_text":"galaxy in a group","vmag":5.72},"score":76,"score_astronomy":100,"score_weather":76,"transit":{"airmass":1.02,"alt":79.1,"az":179.0,"t":"2025-09-20T23:55Z"},"verdict":"good","weather_known":true,"windows":[{"end":"2025-09-20T18:00Z","end_local":"21:00","hours":1.67,"label":"unusable","mean_quality":0.0,"start":"2025-09-20T16:20Z","start_local":"19:20"},{"end":"2025-09-20T18:30Z","end_local":"21:30","hours":0.5,"label":"marginal","mean_quality":0.49,"start":"2025-09-20T18:00Z","start_local":"21:00"},{"end":"2025-09-20T20:00Z","end_local":"23:00","hours":1.5,"label":"good","mean_quality":0.7,"start":"2025-09-20T18:30Z","start_local":"21:30"},{"end":"2025-09-20T21:00Z","end_local":"00:00","hours":1.0,"label":"unusable","mean_quality":0.0,"start":"2025-09-20T20:00Z","start_local":"23:00"},{"end":"2025-09-20T22:00Z","end_local":"01:00","hours":1.0,"label":"poor","mean_quality":0.27,"start":"2025-09-20T21:00Z","start_local":"00:00"},{"end":"2025-09-21T02:35Z","end_local":"05:35","hours":4.58,"label":"good","mean_quality":0.95,"start":"2025-09-20T22:00Z","start_local":"01:00"},{"end":"2025-09-21T03:10Z","end_local":"06:10","hours":0.58,"label":"marginal","mean_quality":0.48,"start":"2025-09-21T02:35Z","start_local":"05:35"},{"end":"2025-09-21T03:40Z","end_local":"06:40","hours":0.5,"label":"poor","mean_quality":0.13,"start":"2025-09-21T03:10Z","start_local":"06:10"},{"end":"2025-09-21T04:10Z","end_local":"07:10","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2025-09-21T03:40Z","start_local":"06:40"}]}],"unscheduled":[],"warnings":[]}