FUNCTION  fIAUNameDXS

Convert ra, dec in degrees to extended IAU name for the DXS.

Will create a 24 char IAU name as UDXS Jhhmmss.ss+ddmmss.s
Calls dbo.fIAUNAME with DXS as survey.
Example usages:

SELECT dbo.fIAUNameDXS(182.25, -12.5)
=> UDXS J120900.00-123000.0

SELECT top 10 dbo.fIAUNameDXS(ra,dec),sourceID from DXSsource

NameTypeLengthinoutpnum
@rafloat8input1
@decfloat8input2
 varchar25output1