The file contains name, latitude, longitude, diameter, feature type, citation for first description (incomplete), citation for first use of nomenclature (incomplete). It uses the same convention as the USGS for diacritical marks (e.g. |: for umlaut).
In the 2023 revision, an additional column has been added with the unicode versions of the crater names.
Thanks to Chuck Wood, Jenny Blue, Alan Baxter and Jim Mosher for comments and corrections.
Jonathan McDowell, 2004 Mar 8. (Some typos corrected 2005 Apr and updates added 2006 Oct; some duplicates removed and the Crossids file improved on 2007 Mar 30 and Jul 15).