{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2027-03-04","schedule":[{"end":"2027-03-04T17:15Z","end_local":"19:15","hours":1.08,"mean_quality":0.0,"start":"2027-03-04T16:10Z","start_local":"18:10","target":null},{"end":"2027-03-04T21:00Z","end_local":"23:00","hours":3.75,"mean_quality":0.71,"start":"2027-03-04T17:15Z","start_local":"19:15","target":"M42"},{"end":"2027-03-05T04:55Z","end_local":"06:55","hours":7.92,"mean_quality":0.0,"start":"2027-03-04T21:00Z","start_local":"23:00","target":null}],"targets":[{"best_window":{"end":"2027-03-04T20:30Z","end_local":"22:30","hours":2.67,"label":"good","mean_quality":0.81,"start":"2027-03-04T17:50Z","start_local":"19:50"},"dec":-5.3876,"moon_separation":129.5,"name":"M42","quality_hours":2.74,"ra":83.8201,"resolved":{"common_name":"Great Orion Nebula","dec":-5.3876,"name":"M 42","ra":83.8201,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M42","source":"sesame","type":"HII","type_text":"HII region \u2014 a star-forming nebula"},"score":null,"score_astronomy":60,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":180.4,"t":"2027-03-04T17:10Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2027-03-04T16:45Z","end_local":"18:45","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2027-03-04T16:10Z","start_local":"18:10"},{"end":"2027-03-04T17:15Z","end_local":"19:15","hours":0.5,"label":"poor","mean_quality":0.13,"start":"2027-03-04T16:45Z","start_local":"18:45"},{"end":"2027-03-04T17:50Z","end_local":"19:50","hours":0.58,"label":"marginal","mean_quality":0.44,"start":"2027-03-04T17:15Z","start_local":"19:15"},{"end":"2027-03-04T20:30Z","end_local":"22:30","hours":2.67,"label":"good","mean_quality":0.81,"start":"2027-03-04T17:50Z","start_local":"19:50"},{"end":"2027-03-04T21:00Z","end_local":"23:00","hours":0.5,"label":"marginal","mean_quality":0.49,"start":"2027-03-04T20:30Z","start_local":"22:30"},{"end":"2027-03-05T04:55Z","end_local":"06:55","hours":7.92,"label":"unusable","mean_quality":0.0,"start":"2027-03-04T21:00Z","start_local":"23:00"}]}],"unscheduled":[],"warnings":[]}
