Orbital information which may be useful in data analysis is available from 
HK2_AOL (argument of latitude in degree) and 
HK2_GREENWICH (Greenwich angle in degree) fields in the HK2 packets. 
Here, HK2 packets in the format of FITS binary extension are available 
from "http://darts.isas.jaxa.jp/pub/solar/hinode/cmn/HK2/".