21051

21051 is a numeric designation that appears in multiple contexts. In geography, it is a United States ZIP code used by the United States Postal Service to designate a specific geographic area for mail delivery and statistical purposes.

In astronomy, 21051 is the permanent number assigned to a minor planet (asteroid) in the catalog of small Solar System bodies maintained by the Minor Planet Center; objects with such numbers are tracked and may receive names later, but the number serves as the primary identifier. The two uses are unrelated beyond sharing the same numeric label.

In other contexts, 21051 may serve as a model, part, or catalog number in various systems, depending on the manufacturer or organization. Without additional context, the exact meaning cannot be determined.

References to 21051 typically require context to distinguish between these uses, such as a postal address or a database entry for solar-system objects. For precise details, consult the USPS ZIP code lookup for geographic boundaries or the Minor Planet Center for information about the asteroid with the number 21051.