--------------------------------------------------------- NSSDC Master Catalog Display Experiment --------------------------------------------------------- Plasma Spectrometer (PLS) NSSDC ID: 77-084A-06 Mission Name: Voyager 1 Principal Investigator: Belcher ------------------- Experiment mass: 9.90 kg Average experiment power: 8.10 W Average experiment bit rate: 0.03 kbps ------------------- Description The plasma investigation made use of two Faraday-cup detectors, one pointed along the earth-spacecraft line and one at right angles to this line. The earth-pointing detector determined the macroscopic properties of the plasma ions, obtaining accurate values of their velocity, density, and pressure. Three sequential energy scans were employed with (delta E)/E equal to 20, 7.2, and 1.8%, allowing a coverage from subsonic to highly supersonic flow. The side-looking Faraday cup measured electrons in the energy range from 5 eV to 1 keV. ------------------- Discipline(s) Planetary Science/Fields and Particles Space Physics/Heliospheric Studies --------------------------------------------------------- NSSDC Master Catalog Display Experiment Personnel --------------------------------------------------------- Plasma Spectrometer (PLS) NSSDC ID: 77-084A-06 Principal Investigator Prof. John W. Belcher Massachusetts Institute of Technology 37-695 Cambridge, MA 02139 Electronic Mail JWB@SPACE.MIT.EDU (INTERNET) ----- Co-Investigator Dr. James D. Sullivan Massachusetts Institute of Technology NW16-166 Cambridge, MA 02139 Electronic Mail SULLIVAN@BU.EDU (INTERNET) MIT::SULLIVAN (MFENET) 44390::MITL32::SULLIVAN (NSI/DECNET) ----- Dr. Keith W. Ogilvie GSFC-Code 692 Electronic Mail U2KWO@LEPVAX.GSFC.NASA.GOV (INTERNET) LEPVAX::U2KWO (NSI/DECNET) ----- Dr. Leonard F. Burlaga GSFC-Code 692 Electronic Mail LEPVAX::U2LEB (NSI/DECNET) ----- Prof. George L. Siscoe Center for Space Physics Boston University 725 Commonwealth Avenue Boston, MA 02215 Electronic Mail SISCOE@BUASTA.BU.EDU (INTERNET) ----- Prof. Vytenis M. Vasyliunas Max-Planck-Institut fur Aeronomie Postfach 20 37191 Katlenburg Germany ----- Dr. Alan J. Lazarus Room 37-687 Center for Space Research Massachusetts Institute of Technology Cambridge, MA 02139 Electronic Mail AJL@SPACE.MIT.EDU (INTERNET) ----- Dr. Richard E. Hartle GSFC-Code 910 Electronic Mail RHARTLE@MITE.GSFC.NASA.GOV (INTERNET) ----- Dr. Arthur J. Hundhausen High Altitude Observatory National Center for Atmospheric Research Boulder, CO 80307 ----- Dr. S. Olbert Retired, Originally at Massachusetts Institute of Technology ----- Dr. Jack D. Scudder Department of Physics and Astronomy University of Iowa Iowa City, IA 52242-1410 Electronic Mail LEPVAX::U2JDS (NSI/DECNET) ----- Dr. Christoph K. Goertz Deceased, Originally at University of Iowa ----- NSSDC Contact Dr. Edwin V. Bell, II Hughes STX Corporation Suite 400 7701 Greenbelt Road Greenbelt, MD 20770 Electronic Mail BELL@NSSDC (BITNET) BELL@NSSDC.GSFC.NASA.GOV (INTERNET) NSSDCA::BELL (NSI/DECNET) ----- Former Principal Investigator Prof. Herbert S. Bridge Deceased, Originally at Massachusetts Institute of Technology ----- --------------------------------------------------------- NSSDC Master Catalog Display Experiment Selected References --------------------------------------------------------- Plasma Spectrometer (PLS) NSSDC ID: 77-084A-06 1. Bridge, H. S., Belcher, J. W., Butler, R. J., Lazarus, A. J., Mavretic, A. M., Sullivan, J. D., Siscoe, G. L., and Vasyliunas, V. M., The plasma experiment on the 1977 Voyager mission, Space Sci. Rev., 21, No. 3, 259-287, Dec. 1977. 2. Bridge, H. S., Belcher, J. W., Lazarus, A. J., Olbert, S., Sullivan, J. D., Bagenal, F., Gazis, P. R., Hartle, R. E., Ogilvie, K. W., Scudder, J. D., Sittler, E. C., Eviatar, A., Siscoe, G. L., Goertz, C. K., and Vasyliunas, V. M., Plasma observations near Saturn: Initial results from Voyager 1, Science, 212, No. 4491, 217-224, Apr. 1981. 3. Bridge, H. S., Belcher, J. W., Lazarus, A. J., Sullivan, J. D., McNutt, R. L., Bagenal, F., Scudder, J. D., Sittler, E. C., Siscoe, G. L., Vasyliunas, V. M., Goertz, C. K., and Yeates, C. M., Plasma observations near Jupiter: Initial results from Voyager 1, Science, 204, No. 4396, 987-991, June 1979. 4. Lazarus, A. J., and McNutt, R. L., Jr., Low-energy plasma ion observations in Saturn's magnetosphere, J. Geophys. Res., 88, No. A11, 8831-8846, Nov. 1983. 5. McNutt, R. L., Jr., Belcher, J. W., and Bridge, H. S., Positive ion observations in the middle magnetosphere of Jupiter, J. Geophys. Res., 86, No. A10, 8319-8342, Sept. 1981. --------------------------------------------------------------------------- For questions about this experiment, please contact: Dr. Edwin V. Bell, II, bell@nssdc.gsfc.nasa.gov For questions about the NSSDC's information systems, please contact: Dr. James Thieman, thieman@nssdca.gsfc.nasa.gov, (301)286-9790 National Space Science Data Center, Code 633.2 NASA/Goddard Space Flight Center, Greenbelt, MD 20771 --------------------------------------------------------------------------- NASA Official: J. H. King, king@nssdca.gsfc.nasa.gov Last Updated: 1995-09-07 Output Generated: 1997-01-21 Programming by: E. V. Bell, II