The Asteroid Catalog DataSheet is accessible from the Chart Point DataSheet. When navigating to the Chart Point DataSheet, you will see a tab for “Selections” and “Asteroid Catalog”. Select “Asteroid Catalog” to bring up the screen shown below which allows you to search for any of the supported minor bodies from the catalog by name or catalog number.
Here’s an example showing an asteroid lookup for the minor body entitled “Merlin”:
Once added, you’ll see this asteroid appear in all of the same places as any other chart point supported by LUNA.
Here is Merlin showing in the Chart Point DataSheet:
Here is Merlin on the chart itself, with aspects calculated to and from it: