{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-05-21","schedule":[{"end":"2027-05-21T19:05Z","end_local":"22:05","hours":1.5,"mean_quality":0.0,"start":"2027-05-21T17:35Z","start_local":"20:35","target":null},{"end":"2027-05-21T19:20Z","end_local":"22:20","hours":0.25,"mean_quality":0.32,"start":"2027-05-21T19:05Z","start_local":"22:05","target":"Vega"},{"end":"2027-05-21T19:40Z","end_local":"22:40","hours":0.33,"mean_quality":0.0,"start":"2027-05-21T19:20Z","start_local":"22:20","target":null},{"end":"2027-05-22T01:45Z","end_local":"04:45","hours":6.08,"mean_quality":0.6,"start":"2027-05-21T19:40Z","start_local":"22:40","target":"Vega"},{"end":"2027-05-22T03:00Z","end_local":"06:00","hours":1.25,"mean_quality":0.0,"start":"2027-05-22T01:45Z","start_local":"04:45","target":null}],"targets":[{"best_window":{"end":"2027-05-22T01:00Z","end_local":"04:00","hours":4.75,"label":"good","mean_quality":0.65,"start":"2027-05-21T20:15Z","start_local":"23:15"},"dec":38.78368896,"moon_separation":69.3,"name":"Vega","quality_hours":3.98,"ra":279.23473479,"resolved":{"common_name":"Vega","dec":38.78368896,"name":"* alf Lyr","ra":279.23473479,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=Vega","source":"sesame","spectral_type":"A0V","type":"dS*","type_text":"delta Scuti variable","vmag":0.03},"score":null,"score_astronomy":66,"score_weather":null,"transit":{"airmass":1.0,"alt":87.1,"az":175.6,"t":"2027-05-22T01:00Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-05-21T18:35Z","end_local":"21:35","hours":1.0,"label":"unusable","mean_quality":0.0,"start":"2027-05-21T17:35Z","start_local":"20:35"},{"end":"2027-05-21T19:05Z","end_local":"22:05","hours":0.5,"label":"poor","mean_quality":0.14,"start":"2027-05-21T18:35Z","start_local":"21:35"},{"end":"2027-05-21T19:20Z","end_local":"22:20","hours":0.25,"label":"marginal","mean_quality":0.32,"start":"2027-05-21T19:05Z","start_local":"22:05"},{"end":"2027-05-21T19:40Z","end_local":"22:40","hours":0.33,"label":"poor","mean_quality":0.28,"start":"2027-05-21T19:20Z","start_local":"22:20"},{"end":"2027-05-21T20:15Z","end_local":"23:15","hours":0.58,"label":"marginal","mean_quality":0.59,"start":"2027-05-21T19:40Z","start_local":"22:40"},{"end":"2027-05-22T01:00Z","end_local":"04:00","hours":4.75,"label":"good","mean_quality":0.65,"start":"2027-05-21T20:15Z","start_local":"23:15"},{"end":"2027-05-22T01:45Z","end_local":"04:45","hours":0.75,"label":"marginal","mean_quality":0.34,"start":"2027-05-22T01:00Z","start_local":"04:00"},{"end":"2027-05-22T02:25Z","end_local":"05:25","hours":0.67,"label":"poor","mean_quality":0.1,"start":"2027-05-22T01:45Z","start_local":"04:45"},{"end":"2027-05-22T03:00Z","end_local":"06:00","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-05-22T02:25Z","start_local":"05:25"}]}],"unscheduled":[],"warnings":[]}
