{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-06-19","schedule":[{"end":"2026-06-19T22:35Z","end_local":"01:35","hours":4.67,"mean_quality":0.0,"start":"2026-06-19T17:55Z","start_local":"20:55","target":null},{"end":"2026-06-20T01:30Z","end_local":"04:30","hours":2.92,"mean_quality":0.61,"start":"2026-06-19T22:35Z","start_local":"01:35","target":"M31"},{"end":"2026-06-20T02:50Z","end_local":"05:50","hours":1.33,"mean_quality":0.0,"start":"2026-06-20T01:30Z","start_local":"04:30","target":null}],"targets":[{"best_window":{"end":"2026-06-20T00:40Z","end_local":"03:40","hours":1.42,"label":"good","mean_quality":0.77,"start":"2026-06-19T23:15Z","start_local":"02:15"},"dec":41.26875,"moon_separation":120.0,"name":"M31","quality_hours":1.89,"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":40,"score_astronomy":42,"score_weather":96,"transit":{"airmass":1.0,"alt":89.6,"az":134.7,"t":"2026-06-20T05:10Z"},"verdict":"marginal","weather_known":true,"windows":[{"end":"2026-06-19T22:35Z","end_local":"01:35","hours":4.67,"label":"unusable","mean_quality":0.0,"start":"2026-06-19T17:55Z","start_local":"20:55"},{"end":"2026-06-19T23:15Z","end_local":"02:15","hours":0.67,"label":"marginal","mean_quality":0.48,"start":"2026-06-19T22:35Z","start_local":"01:35"},{"end":"2026-06-20T00:40Z","end_local":"03:40","hours":1.42,"label":"good","mean_quality":0.77,"start":"2026-06-19T23:15Z","start_local":"02:15"},{"end":"2026-06-20T01:30Z","end_local":"04:30","hours":0.83,"label":"marginal","mean_quality":0.44,"start":"2026-06-20T00:40Z","start_local":"03:40"},{"end":"2026-06-20T02:15Z","end_local":"05:15","hours":0.75,"label":"poor","mean_quality":0.14,"start":"2026-06-20T01:30Z","start_local":"04:30"},{"end":"2026-06-20T02:50Z","end_local":"05:50","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-06-20T02:15Z","start_local":"05:15"}]}],"unscheduled":[],"warnings":[]}