Please, add plugin for coded data 123p UNIMARC $p Planet (Mandatory for planets other than Earth, Not repeatable) $p/0-1 Planet ea Earth ju Jupiter ma Mars me Mercury ne Neptune pl Pluto sa Saturn ur Uranus ve Venus zz Other $p/2 Satellite s The body whose co-ordinates are recorded in subfields $d-$g is a satellite of the planet coded on pos. 0-1. y Not applicable: the body whose co-ordinates are recorded in subfields $d-$g is the planet itself, as coded on pos. 0-1. https://archive.ifla.org/VI/8/unimarc-concise-bibliographic-format-2008.pdf
https://cdn.ifla.org/wp-content/uploads/files/assets/uca/unimarc_updates/BIBLIOGRAPHIC/u-b_123_update.pdf