Sri but I made the mistake.

091204 1752 27 -4 -0.9 0.503844 HB9TMW JN36 37 0 1 0
091204 1752 12 -19 -1.1 0.503918 F6AAO JN33 37 0 1 0
091204 1752 16 -15 0.2 0.503934 EI7JQ IO63 37 0 2 0
091204 1752 11 -21 -1.2 0.503969 RW9SZ LO91 47 0 1 0

shud be 40mtres..must be getting old, Geoff g4cao