Craig Lieneck PHY3091-01.fa03 November 5, 2003 Pioneer 10 Craig Lieneck PHY3091-01.fa03 November 5, 2003
Spacecraft Description 2.9 m (9.5 ft) long 270 kg (570 lbs.) Dish: 2.74 m diameter 46 cm deep Spin Stabilized (5 rpm) 6 Hydrazine Thrusters Velocity Attitude Spin-Rate Control Powered by 4 RTG Power Sources Carries 11 Different Instruments Starlight Sensor – Referenced position relative to Canopus 2 Sunlight Sensors – Referenced position relative to the Sun
Mission Overview Designed to observe Jupiter Earth’s 1st space probe to encounter an outer planet Experiment to see if Asteroid Belt could be passed Paved way for outer solar system exploration Total cost as of 2001 – $350 million
Message in a Bottle Aboard Pioneer 10 &11 Plaque with message from mankind Not everyone approved
Launch March 2, 1972 at Cape Kennedy Atlas/Centaur/TE364 Launch Vehicle 51,810 km/hr (32,400mph)
Flight Path
Asteroid Belt Encountered on July 15, 1972 Materials range from dust particles to the size of Alaska (20 km/hr) Once safely passed, Pioneer 11 launched (April 5, 1973)
Jupiter December 3, 1973 Approached at 132,000 km/hr 130,354 km (81,000 miles) above cloud tops - Mapped radiation belts - Located magnetic field Discovered Jupiter was a predominately liquid planet
1st Close-Up Images of Jupiter
Outer Solar System June 13, 1983 – became 1st artifact to “leave the solar system” Studied energetic particles from solar wind Cosmic rays entering Milky Way Scientific Mission End: March 31, 1997 DSN – advanced concept study of communication technology for future probes
Heliosphere
Last Signal February 7, 2003 – Last attempt Power source degraded – No power for transmissions 27,380 mph Currently 7.8 billion miles away Most remote man-made object
References http://spaceprojects.arc.nasa.gov/Space_Projects/pioneer/PNhome.html http://quest.arc.nasa.gov/sso/cool/pioneer10/ http://www.tsgc.utexas.edu/archive/characterizations/pioneer10.html http://www.space.com/searchforlife/seti_pioneer_10_030306.html