TY  - RPRT
TI  - Improved orbital and physical parameters for the Pluto-Charon system
AU  - Tholen, David J.
AU  - Buie, Marc W.
AU  - Binzel, Richard P.
AU  - Frueh, Marian L.
PY  - 1987
UR  - https://ntrs.nasa.gov/citations/19870062725
ID  - 19870062725
ER  -