TY - CPAPER AU - Peter Bender AU - D. Larden CY - Las Cruces, NM N1 - JILA Pub. 2453 PB - Las Cruces, NM, New Mexico State University PP - Las Cruces, NM PY - 1983 TI - TOPEX Orbit Determination Using GPS Signals Plus a Sidetone Ranging System ER -