Conversation so far:
What information did Miller refuse to disclose source for?
Miller was jailed for contempt of court for refusing to testify before a federal grand jury investigating a leak naming Valerie Plame as a CIA officer.
Did the information eventually come out?
According to a subpoena, Miller met with an unnamed government official, later revealed to be I.
Lewis "Scooter" Libby, Vice President Cheney's Chief of Staff, on July 8, 2003.
When was the court appearance?
September 30, 2005.
How was Judith related to the CIA agent?
CANNOTANSWER.
How long was she in jail?
after spending 85 days in jail, Miller was released.
What other noteworthy events occurred in this situation?
For her second grand jury appearance, Miller produced a notebook from a previously undisclosed meeting with Libby on June 23, 2003.
Anything else?
Miller testified as a witness on January 30, 2007, at the trial of Scooter Libby, which began in January 2007.

Question: When did her first court appearance happen?
Self-contained rewrite: When did  Judith Miller's first court appearance happen?