V$sql - object_status

Hi,

Trying to find out what is the explanation of a value in the object_status column of v$sql.
We have one SQL that is showing with a object_status of INVALID_UNAUTH. Metalink and Oracle DOC do not explain the meaning of this. What is the cause for the status to be set to this value?. The session that is running this query is ACTIVE but is in a hung state for the last few hours.

Oracle 9.2.0.7 on Win 2003 server.

TIA. Yuval.

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