It will be seen that the definition does not cover all assignments, only those typically effected pursuant to a debtor-creditor relationship, namely assignments by way of security and outright assignments in reduction or discharge of
the debtor’s obligations to the creditor.
So the sale of debtor’s rights falls outside the definition.
This is a necessary limitation because other wise there could be a situation in which the obligations secured by the international interest were discharged but the creditor would continue to hold the assigned rights as security for other obligations, so that the linkage with the space asset giving rise to the assigned rights would be lost