function mvn_sep_mapnum_to_mapname,mapnum
defmapname = 'fullstack1'
defmapname = 'ATLO'
defmapname = 'SEP-A-O-alpha'
defmapname = 'SEP-B-O-alpha'
if ~keyword_set(mapname) && keyword_set(mapnum) && size(/type,mapnum) le 3 then begin
case mapnum of
4: mapname='ATLO'
6: mapname='Flight1'
8: mapname='Flight2'
9: mapname='Flight3'
25: mapname='SEP-A-O-alpha_low'
24: mapname='SEP-A-O-alpha'
52: mapname='SEP-A-F-alpha'
152: mapname='SEP-B-O-alpha'
153: mapname='SEP-B-O-alpha_low'
135: mapname='fullstack1'
201: mapname='SEP-B-F-alpha_low'
202: mapname='SEP-B-F-alpha_low80'
7: mapname='fullstack0'
33: mapname='fullstack0'
41: mapname='fullstack1'
else: dprint,'Unknown map number',mapnum
endcase
endif
if not keyword_set(mapname) then mapname = defmapname
return,mapname
end