{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-03-20","schedule":[{"end":"2027-03-20T22:45Z","end_local":"00:45","hours":6.25,"mean_quality":0.0,"start":"2027-03-20T16:30Z","start_local":"18:30","target":null},{"end":"2027-03-21T02:55Z","end_local":"04:55","hours":4.17,"mean_quality":0.36,"start":"2027-03-20T22:45Z","start_local":"00:45","target":"3C 273"},{"end":"2027-03-21T04:25Z","end_local":"06:25","hours":1.5,"mean_quality":0.0,"start":"2027-03-21T02:55Z","start_local":"04:55","target":null}],"targets":[{"best_window":{"end":"2027-03-21T02:55Z","end_local":"04:55","hours":4.17,"label":"marginal","mean_quality":0.36,"start":"2027-03-20T22:45Z","start_local":"00:45"},"dec":2.05238823,"moon_separation":26.6,"name":"3C 273","quality_hours":2.57,"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":27,"score_weather":null,"transit":{"airmass":1.3,"alt":50.2,"az":180.6,"t":"2027-03-20T23:00Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-03-20T18:45Z","end_local":"20:45","hours":2.25,"label":"unusable","mean_quality":0.0,"start":"2027-03-20T16:30Z","start_local":"18:30"},{"end":"2027-03-20T22:45Z","end_local":"00:45","hours":4.0,"label":"poor","mean_quality":0.25,"start":"2027-03-20T18:45Z","start_local":"20:45"},{"end":"2027-03-21T02:55Z","end_local":"04:55","hours":4.17,"label":"marginal","mean_quality":0.36,"start":"2027-03-20T22:45Z","start_local":"00:45"},{"end":"2027-03-21T03:20Z","end_local":"05:20","hours":0.42,"label":"poor","mean_quality":0.14,"start":"2027-03-21T02:55Z","start_local":"04:55"},{"end":"2027-03-21T04:25Z","end_local":"06:25","hours":1.08,"label":"unusable","mean_quality":0.0,"start":"2027-03-21T03:20Z","start_local":"05:20"}]}],"unscheduled":[],"warnings":[]}