{"calculation_version":"2026-10-10.1","forecast_source":"history","night_date":"2026-03-31","schedule":[{"end":"2026-04-01T04:05Z","end_local":"07:05","hours":11.33,"mean_quality":0.0,"start":"2026-03-31T16:45Z","start_local":"19:45","target":null}],"targets":[{"best_window":null,"dec":30.66017511,"moon_separation":140.9,"name":"M33","quality_hours":0.0,"ra":23.46206906,"resolved":{"common_name":"Triangulum Pinwheel","dec":30.66017511,"morphology":"SA(s)cd","name":"M 33","ra":23.46206906,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M33","source":"sesame","type":"GiG","type_text":"galaxy in a group","vmag":5.72},"score":0,"score_astronomy":0,"score_weather":30,"transit":{"airmass":1.02,"alt":79.1,"az":178.9,"t":"2026-03-31T11:20Z"},"verdict":"unusable","weather_known":true,"windows":[{"end":"2026-03-31T17:15Z","end_local":"20:15","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2026-03-31T16:45Z","start_local":"19:45"},{"end":"2026-03-31T17:20Z","end_local":"20:20","hours":0.08,"label":"poor","mean_quality":0.02,"start":"2026-03-31T17:15Z","start_local":"20:15"},{"end":"2026-04-01T04:05Z","end_local":"07:05","hours":10.75,"label":"unusable","mean_quality":0.0,"start":"2026-03-31T17:20Z","start_local":"20:20"}]}],"unscheduled":[{"name":"M33","why":"Overcast (\u226580 % cloud) for 8.7 of 10.4 dark hours \u2014 the sky is closed whatever the geometry says."}],"warnings":[]}