{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-07-28","schedule":[{"end":"2027-07-29T03:15Z","end_local":"06:15","hours":9.58,"mean_quality":0.0,"start":"2027-07-28T17:40Z","start_local":"20:40","target":null}],"targets":[{"best_window":null,"dec":2.05238823,"moon_separation":121.5,"name":"3C 273","quality_hours":0.04,"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":0,"score_weather":null,"transit":{"airmass":1.3,"alt":50.2,"az":179.0,"t":"2027-07-28T14:25Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-07-28T18:20Z","end_local":"21:20","hours":0.67,"label":"unusable","mean_quality":0.0,"start":"2027-07-28T17:40Z","start_local":"20:40"},{"end":"2027-07-28T18:50Z","end_local":"21:50","hours":0.5,"label":"poor","mean_quality":0.07,"start":"2027-07-28T18:20Z","start_local":"21:20"},{"end":"2027-07-29T03:15Z","end_local":"06:15","hours":8.42,"label":"unusable","mean_quality":0.0,"start":"2027-07-28T18:50Z","start_local":"21:50"}]}],"unscheduled":[{"name":"3C 273","why":"no usable window tonight"}],"warnings":[]}