{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-04-23","schedule":[{"end":"2027-04-23T18:20Z","end_local":"21:20","hours":1.17,"mean_quality":0.0,"start":"2027-04-23T17:10Z","start_local":"20:10","target":null},{"end":"2027-04-24T00:55Z","end_local":"03:55","hours":6.58,"mean_quality":0.65,"start":"2027-04-23T18:20Z","start_local":"21:20","target":"3C 273"},{"end":"2027-04-24T03:30Z","end_local":"06:30","hours":2.58,"mean_quality":0.0,"start":"2027-04-24T00:55Z","start_local":"03:55","target":null}],"targets":[{"best_window":{"end":"2027-04-23T22:45Z","end_local":"01:45","hours":3.83,"label":"good","mean_quality":0.76,"start":"2027-04-23T18:55Z","start_local":"21:55"},"dec":2.05238823,"moon_separation":64.0,"name":"3C 273","quality_hours":4.41,"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":null,"score_astronomy":93,"score_weather":null,"transit":{"airmass":1.3,"alt":50.2,"az":180.0,"t":"2027-04-23T20:45Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-04-23T17:40Z","end_local":"20:40","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2027-04-23T17:10Z","start_local":"20:10"},{"end":"2027-04-23T18:20Z","end_local":"21:20","hours":0.67,"label":"poor","mean_quality":0.13,"start":"2027-04-23T17:40Z","start_local":"20:40"},{"end":"2027-04-23T18:55Z","end_local":"21:55","hours":0.58,"label":"marginal","mean_quality":0.44,"start":"2027-04-23T18:20Z","start_local":"21:20"},{"end":"2027-04-23T22:45Z","end_local":"01:45","hours":3.83,"label":"good","mean_quality":0.76,"start":"2027-04-23T18:55Z","start_local":"21:55"},{"end":"2027-04-24T00:55Z","end_local":"03:55","hours":2.17,"label":"marginal","mean_quality":0.51,"start":"2027-04-23T22:45Z","start_local":"01:45"},{"end":"2027-04-24T01:05Z","end_local":"04:05","hours":0.17,"label":"poor","mean_quality":0.29,"start":"2027-04-24T00:55Z","start_local":"03:55"},{"end":"2027-04-24T03:30Z","end_local":"06:30","hours":2.42,"label":"unusable","mean_quality":0.0,"start":"2027-04-24T01:05Z","start_local":"04:05"}]}],"unscheduled":[],"warnings":[]}