{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-04-27","schedule":[{"end":"2026-04-27T22:05Z","end_local":"01:05","hours":4.92,"mean_quality":0.0,"start":"2026-04-27T17:10Z","start_local":"20:10","target":null},{"end":"2026-04-28T01:40Z","end_local":"04:40","hours":3.58,"mean_quality":0.49,"start":"2026-04-27T22:05Z","start_local":"01:05","target":"V1057 Cyg"},{"end":"2026-04-28T03:25Z","end_local":"06:25","hours":1.75,"mean_quality":0.0,"start":"2026-04-28T01:40Z","start_local":"04:40","target":null}],"targets":[{"best_window":{"end":"2026-04-28T00:00Z","end_local":"03:00","hours":0.58,"label":"good","mean_quality":0.62,"start":"2026-04-27T23:25Z","start_local":"02:25"},"dec":44.25788576,"moon_separation":122.8,"name":"V1057 Cyg","quality_hours":1.9,"ra":314.72388973,"resolved":{"dec":44.25788576,"name":"EM* LkHA 190","ra":314.72388973,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=V1057%20Cyg","source":"sesame","spectral_type":"F7/G3I/IIe","type":"Or*","type_text":"Orion-type variable \u2014 a young, erupting star","vmag":12.33},"score":46,"score_astronomy":72,"score_weather":64,"transit":{"airmass":1.0,"alt":87.3,"az":4.4,"t":"2026-04-28T04:55Z"},"verdict":"marginal","weather_known":true,"windows":[{"end":"2026-04-27T22:05Z","end_local":"01:05","hours":4.92,"label":"unusable","mean_quality":0.0,"start":"2026-04-27T17:10Z","start_local":"20:10"},{"end":"2026-04-27T23:25Z","end_local":"02:25","hours":1.33,"label":"marginal","mean_quality":0.48,"start":"2026-04-27T22:05Z","start_local":"01:05"},{"end":"2026-04-28T00:00Z","end_local":"03:00","hours":0.58,"label":"good","mean_quality":0.62,"start":"2026-04-27T23:25Z","start_local":"02:25"},{"end":"2026-04-28T01:40Z","end_local":"04:40","hours":1.67,"label":"marginal","mean_quality":0.44,"start":"2026-04-28T00:00Z","start_local":"03:00"},{"end":"2026-04-28T02:55Z","end_local":"05:55","hours":1.25,"label":"poor","mean_quality":0.13,"start":"2026-04-28T01:40Z","start_local":"04:40"},{"end":"2026-04-28T03:25Z","end_local":"06:25","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2026-04-28T02:55Z","start_local":"05:55"}]}],"unscheduled":[],"warnings":[]}