2.0.1 spase://nssdc/numericalData/SPMS-00238 ISEE 1 2-D, 3-sec Electric Field Data 2008-02-20T00:00:00 of GSE X and Y components of the electric field; spacecraft potential, wave power in three frequency bands (3-14 Hz, 14-80 Hz, 120-600 Hz), spacecraft position in GSM, and 3-sec magnetic field data from the UCLA magnetometer. Uncertainty in Ex is 1-2 mV/meter, and less in Ey. Data values are binary integers. Please acknowledge the PI, Dr. Forrest Mozer of UCB, and NSSDC spase://SMWG/Person/Cynthia.A.Cattell GeneralContact spase://SMWG/Person/Forrest.S.Mozer PrincipalInvestigator NSSDC Master Catalog http://nssdc.gsfc.nasa.gov/database/MasterCatalog?ds=SPMS-00238 spase://SMWG/Repository/NASA/NSSDC Offline Open NSSDC http://nssdc.gsfc.nasa.gov/nssdc/obtaining_data.html Binary 2 GB Calibrated spase://SMWG/Instrument/ISEE1/LFEF ElectricField 1977-11-01T00:00:00 1984-05-02T00:00:00 Major data gaps: 1978-11-16 - 1980-02-12, 1982-05-06 - 1983-11-08 PT3S Earth.Magnetosphere Earth.Magnetosheath Heliosphere.NearEarth Electric field X(GSE) component Electric field X(GSE) component PT3S mV/m Cartesian GSE Component.I Electric Electric field Y(GSE) component Electric field Y(GSE) component PT3S mV/m Cartesian GSE Component.J Electric Magnetic field vector Cartesian components in GSE of magnetic field vector measured on UCLA magnetometer PT3S nT Cartesian GSE 3 Magnetic field vector Vector Magnetic Electric wave amplitude in 3 frequency bands Electric wave amplitude in the frequency bins 3-14 Hz, 14-80 Hz, 120-600 Hz PT3S microvolt/m-Hz**0.5 3 Three E-field wave amplitudes Variance Electric Spacecraft potential Spacecraft potential PT3S Volts Potential Spacecraft location GSM Cartesian components of spacecraft position vector PT3S Re Cartesian GSM 3 spacecraft position vector, X,Y,Z Positional spase://SMWG/Observatory/ISEE1 ISEE 1 1977-102A International Sun-Earth Explorer-A Explorer 56 ISEE-A 2009-05-20T20:00:12Z The Explorer-class mother spacecraft, International Sun-Earth Explorer 1, was part of the mother/daughter/heliocentric mission (ISEE 1, ISEE 2, ISEE 3). The purposes of the mission were: (1) to investigate solar-terrestrial relationships at the outermost boundaries of the Earth's magnetosphere, (2) to examine in detail the structure of the solar wind near the Earth and the shock wave that forms the interface between the solar wind and the Earth's magnetosphere, (3) to investigate motions of and mechanisms operating in the plasma sheets, and (4) to continue the investigation of cosmic rays and solar flare effects in the interplanetary region near 1 AU. The three spacecraft carried a number of complementary instruments for making measurements of plasmas, energetic particles, waves, and fields. The mission thus extended the investigations of previous IMP spacecraft. The mother/daughter portion of the mission consisted of two spacecraft (ISEE 1 and ISEE 2) with station-keeping capability in the same highly eccentric geocentric orbit with an apogee of 23 Earth radii. During the course of the mission, the ISEE 1 and ISEE 2 orbit parameters underwent short-term and long-term variations due to solar and lunar perturbations. These two spacecraft maintained a small separation distance, and made simultaneous coordinated measurements to permit separation of spatial from temporal irregularities in the near-Earth solar wind, the bow shock, and inside the magnetosphere. By maneuvering ISEE 2, the inter-spacecraft separation as measured near the Earth's bow shock was allowed to vary between 10 km and 5000 km; its value is accurately known as a function of time and orbital position. The spacecraft were spin stabilized, with the spin vectors maintained nominally within 1 degree of perpendicular to the ecliptic plane, pointing north. The spin rates were nominally 19.75 rpm for ISEE 1 and 19.8 rpm for ISEE 2, so that there was a slow differential rotation between the two spacecraft. The ISEE 1 body-mounted solar array provided approximately 175 watts initially and 131 watts after three years, at 28 volts during normal operation. The ISEE 1 data rate was 4096 bps most of the time and 16384 bps during one orbit out of every five (with some exceptions). Both ISEE 1 and ISEE 2 re-entered the Earth's atmosphere during orbit 1518 on September 26, 1987. Seventeen of 21 on-board experiments were operational at the end. For instrument descriptions written by the investigators, see IEEE Trans. on Geosci. Electron., v. GE-16, no. 3, July 1978. spase://SMWG/Person/Keith.W.Ogilvie ProjectScientist NSSDC's Master Catalog http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1977-102A Information about the ISEE 1 mission ISEE Heliosphere.NearEarth spase://SMWG/Instrument/ISEE1/LFEF Quasi-static and low-frequency electric fields (0.1-200 mV/m, frequency < 1000Hz) 2009-05-20T21:10:16Z The objective of this experiment was to study quasi-static and low-frequency electric fields in the plasmasphere, magnetosphere, magnetosheath, and solar wind. Measurements were made of the potential difference between a pair of 8-cm diameter vitreous carbon spheres which were separated by 73.5 m and mounted on the ends of wire booms in the satellite spin plane. To attempt to overcome the spacecraft sheath (a potential problem which plagues all electric field detectors), an electron gun for changing the spacecraft potential was included, and all exposed spacecraft surfaces were made electrically conducting. The instrument was designed to be sensitive to fields from 0.1 to 200 mV/m in the frequency band of 0 to 12 Hz. The experiment also measured the electric field component of waves at frequencies below 1000 Hz. spase://SMWG/Person/Cynthia.A.Cattell GeneralContact spase://SMWG/Person/H.Kent.Hills TechnicalContact spase://SMWG/Person/Michael.C.Kelley CoInvestigator spase://SMWG/Person/Forrest.S.Mozer PrincipalInvestigator NSSDC's Master Catalog http://nssdc.gsfc.nasa.gov/nmc/experimentDisplay.do?id=1977-102A-06 Information about the Quasi-static and low-frequency electric fields (0.1-200 mV/m, frequency < 1000Hz) experiment on the ISEE 1 mission. DoubleSphere Quasi-static and low-frequency electric fields (0.1-200 mV/m, frequency < 1000Hz) on ISEE 1 spase://SMWG/Observatory/ISEE1 spase://SMWG/Repository/NASA/NSSDC NSSDC 2008-08-26T21:02:30Z National Space Science Data Center spase://SMWG/Person/Edwin.J.Grayzeck.Jr GeneralContact spase://SMWG/Person/Edwin.V.Bell.II GeneralContact spase://SMWG/Repository/NSSDC spase://SMWG/Person/Michael.C.Kelley 2008-08-26T18:42:31Z Dr. Michael C. Kelley Cornell University

School of Electrical Engineering Cornell University 318 Rhodes Hall Ithaca NY 14853

mikek@ee.cornell.edu +1-607-254-5331 spase://SMWG/Person/Keith.W.Ogilvie 2007-05-30T15:38:05Z Dr. Keith W. Ogilvie NASA Goddard Space Flight Center

Code 673, Greenbelt, MD 20771, USA

keith.w.ogilvie@nasa.gov +1-301-286-5904 spase://SMWG/Person/Edwin.V.Bell.II Dr. Edwin V. Bell, II GSFC-Code 690.1 spase://SMWG/Person/Forrest.S.Mozer 2008-08-26T18:43:16Z Prof. Forrest S. Mozer University of California, Berkeley

Room 306 Space Science Laboratory University of California, Berkeley Berkeley CA 94720

mozer@sunspot.ssl.berkeley.edu +1-510-642-0549 spase://SMWG/Person/Cynthia.A.Cattell 2008-08-26T18:40:42Z Dr. Cynthia A. Cattell University of Minnesota

Tate Laboratory of Physics School of Physics and Astronomy University of Minnesota 116 Church Street SE Minneapolis MN 55455-0112

cattell@belka.spa.umn.edu +1-612-626-2029 spase://SMWG/Person/Edwin.J.Grayzeck.Jr Dr. Edwin J. Grayzeck, Jr. GSFC-Code 690.1 spase://SMWG/Person/H.Kent.Hills 2008-08-26T18:41:43Z Dr. H. Kent Hills GSFC-Code 690.1

GSFC-Code 690.1 QSS Group Inc

hills@nssdc.gsfc.nasa.gov +1-301-286-1771