user: ### NOW ANSWER:
Question: WHAT DATE HAS A CATALOG OF 486553.4?
Columns: ['Date', 'Region', 'Label', 'Format', 'Catalog']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1976.0, 'Australia', 'CBS', 'LP', 'SBP 234929']
SQL:

assistant: SELECT MAX("Date") FROM "Table" WHERE "Catalog" = '486553.4';