{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-01-18","schedule":[{"end":"2027-01-18T17:00Z","end_local":"19:00","hours":1.75,"mean_quality":0.0,"start":"2027-01-18T15:15Z","start_local":"17:15","target":null},{"end":"2027-01-18T23:25Z","end_local":"01:25","hours":6.42,"mean_quality":0.37,"start":"2027-01-18T17:00Z","start_local":"19:00","target":"M45"},{"end":"2027-01-19T05:45Z","end_local":"07:45","hours":6.33,"mean_quality":0.0,"start":"2027-01-18T23:25Z","start_local":"01:25","target":null}],"targets":[{"best_window":{"end":"2027-01-18T23:25Z","end_local":"01:25","hours":6.42,"label":"marginal","mean_quality":0.37,"start":"2027-01-18T17:00Z","start_local":"19:00"},"dec":24.11388889,"moon_separation":8.7,"name":"M45","quality_hours":2.63,"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":25,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":178.2,"t":"2027-01-18T18:15Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-01-18T15:50Z","end_local":"17:50","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-01-18T15:15Z","start_local":"17:15"},{"end":"2027-01-18T17:00Z","end_local":"19:00","hours":1.17,"label":"poor","mean_quality":0.13,"start":"2027-01-18T15:50Z","start_local":"17:50"},{"end":"2027-01-18T23:25Z","end_local":"01:25","hours":6.42,"label":"marginal","mean_quality":0.37,"start":"2027-01-18T17:00Z","start_local":"19:00"},{"end":"2027-01-18T23:55Z","end_local":"01:55","hours":0.5,"label":"poor","mean_quality":0.26,"start":"2027-01-18T23:25Z","start_local":"01:25"},{"end":"2027-01-19T05:45Z","end_local":"07:45","hours":5.83,"label":"unusable","mean_quality":0.0,"start":"2027-01-18T23:55Z","start_local":"01:55"}]}],"unscheduled":[],"warnings":[]}
