5.447D in the Radio Frequency Table Allocation of Ireland.

Content Type
ITU FOOTNOTE
Title
5.447D
Description
The allocation of the band 5 250-5 255 MHz to the space research service on a primary basis is limited to active space borne sensors. Other uses of the band by the space research service are on a secondary basis. (WRC-97)
Source
https://search.itu.int/history/HistoryDigitalCollectionDocLibrary/1.43.48.en.101.pdf