{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-01-28","schedule":[{"end":"2027-01-28T16:35Z","end_local":"18:35","hours":1.08,"mean_quality":0.0,"start":"2027-01-28T15:30Z","start_local":"17:30","target":null},{"end":"2027-01-28T23:15Z","end_local":"01:15","hours":6.67,"mean_quality":0.86,"start":"2027-01-28T16:35Z","start_local":"18:35","target":"M45"},{"end":"2027-01-29T05:40Z","end_local":"07:40","hours":6.42,"mean_quality":0.0,"start":"2027-01-28T23:15Z","start_local":"01:15","target":null}],"targets":[{"best_window":{"end":"2027-01-28T22:50Z","end_local":"00:50","hours":5.67,"label":"good","mean_quality":0.93,"start":"2027-01-28T17:10Z","start_local":"19:10"},"dec":24.11388889,"moon_separation":153.1,"name":"M45","quality_hours":5.82,"ra":56.60083333,"resolved":{"common_name":"Seven Sisters","dec":24.11388889,"name":"Cl Melotte 22","ra":56.60083333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"},"score":null,"score_astronomy":100,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":181.5,"t":"2027-01-28T17:40Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-01-28T16:05Z","end_local":"18:05","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-01-28T15:30Z","start_local":"17:30"},{"end":"2027-01-28T16:35Z","end_local":"18:35","hours":0.5,"label":"poor","mean_quality":0.15,"start":"2027-01-28T16:05Z","start_local":"18:05"},{"end":"2027-01-28T17:10Z","end_local":"19:10","hours":0.58,"label":"marginal","mean_quality":0.5,"start":"2027-01-28T16:35Z","start_local":"18:35"},{"end":"2027-01-28T22:50Z","end_local":"00:50","hours":5.67,"label":"good","mean_quality":0.93,"start":"2027-01-28T17:10Z","start_local":"19:10"},{"end":"2027-01-28T23:15Z","end_local":"01:15","hours":0.42,"label":"marginal","mean_quality":0.48,"start":"2027-01-28T22:50Z","start_local":"00:50"},{"end":"2027-01-29T05:40Z","end_local":"07:40","hours":6.42,"label":"unusable","mean_quality":0.0,"start":"2027-01-28T23:15Z","start_local":"01:15"}]}],"unscheduled":[],"warnings":[]}