This directory contains 3 subdirectories each of which contains
phase and offset data associated with the OMAG and OEFD datasets.

DATA/PHASEOFF/ORB4300 contains data for orbits 4301-4399
DATA/PHASEOFF/ORB4400 contains data for orbits 4400-4499
DATA/PHASEOFF/ORB4500 contains data for orbits 4500-4600