Each NoRH antenna has its own ID number and name.
The correspondance is
IDL> antname=norh_antnum2name(indgen(84)) CR
The inverse is
IDL> antnum=norh_antname2num(['n15','w01']) CR
Each NoRH anttena-pair pair has its own ID number.
The correspondance of this number and the names of anttennas of this pair
is given by
IDL> ant=norh_pair2ant(indgen(84*83/2)) CR
The inverse is
IDL> pair=norh_ant2pair([0,28]) CR