Invalid cometary designations with a fragment specifier are successfully packed.

[mkelley]

High-level problem description

Invalid cometary designations with a fragment specifier are successfully packed.

What did you do?

In [3]: Names.to_packed("2024 A-A")
Out[3]: 'K24A00a'

Note that the invalid target "2024 A" fails as expected.

----> 1 Names.to_packed("2024 A")

File /disks/data0/astro/Projects/sbpy/sbpy/data/names.py:190, in Names.to_packed(s)
    186                     raise TargetNameParseError(
    187                         ('{} cannot be turned into a '
    188                          'packed number or designation').format(s))
    189         except (IndexError, ValueError):
--> 190             raise TargetNameParseError(
    191                 ('{} cannot be turned into a '
    192                  'packed number or designation').format(s))
    193 else:
    194     raise TargetNameParseError(
    195         ('{} cannot be turned into a '
    196          'packed number or designation').format(s))

TargetNameParseError: 2024 A cannot be turned into a packed number or designation

What did you expect?

A TargetNameParseError exception.

Proposed solution

Trim the fragment specifier off the designation, parse the string with the usual rules, then account for the fragment.