No, it is there....just downloaded fresh and it appears.

Catalina c2013 UQ4

 

------------
Dr. Clay

C/2013 UQ4 (Catalina) has been in the MPC COMET.DAT file at least since Jun 30. That's as far back as I have copies of the file.

Andrew

-- 
There's no point in being grown up if you can't be childish sometimes.
-- Dr. Who