2.0.1 spase://VHO/NumericalData/ACE/MAG_SWEPAM_BSNOSE/PT1M ACE MAG SWEPAM 1-min field and plasma data at bow shock nose ACE at BSN 2009-08-01T00:00:00 Solar wind magnetic field and plasma data at 1-min resolution created from ACE data shifted to the Earth's bow shock nose (BSN). We acknowledge N.Ness and C. Smith of the MAG team, D. McComas and R. Skoug of the SWEPAM team and J. King and N. Papitashvili of NASA/SPDF and ADNET who created this product. spase://SMWG/Person/Joseph.H.King DataProducer spase://SMWG/Person/Natalia.E.Papitashvili DataProducer Readme at nssdcftp ftp://nssdcftp.gsfc.nasa.gov/spacecraft_data/omni/high_res_omni/sc_specific/00readme.txt spase://SMWG/Repository/NASA/GSFC/SPDF Online Open OMNIWeb http://omniweb.gsfc.nasa.gov/form/sc_merge_min1.html OMNIWeb, 1-min ACE Text None spase://SMWG/Repository/NASA/GSFC/SPDF Online Open nssdcftp ftp://nssdcftp.gsfc.nasa.gov/spacecraft_data/omni/high_res_omni/sc_specific FTP path at SPDF/NSSDC Text None 129 MB P1Y ACE MAG SWEPAM Data at BSN spase://SMWG/Instrument/ACE/MAG spase://SMWG/Instrument/ACE/SWEPAM MagneticField ThermalPlasma 1998-02-05T00:00:00 -P3M PT1M Heliosphere.NearEarth Magnetic field vector, GSE Magnetic field vector, GSE PT1M nT Cartesian GSE 3 Magnetic field vector, GSE Bx(GSE) 1 Column13 nT By(GSE) 2 Column14 nT Bz(GSE) 3 Column15 nT Component Average Magnetic Magnetic field vector, GSM Magnetic field vector, GSM PT1M nT Cartesian GSM 3 Magnetic field vector, GSM Bx(GSM) 1 Column13 nT By(GSM) 2 Column16 nT Bz(GSM) 3 Column17 nT Component Average Magnetic Magnetic field magnitude Column12 Magnetic field magnitude PT1M nT Magnitude Average Magnetic Magnetic field vector standard deviation Column21 Square root of sum of variances of component averages. PT1M nT Variance Component Magnetic Magnetic field magnitude standard deviation Column20 Standard deviation in the average of magnetic field magnitudes PT1M nT Variance Magnitude Magnetic Flow speed Column23 Flow speed of the solar wind PT1M km/s Proton Magnitude Velocity Flow velocity vector Flow velocity vector, 3 GSE cartesian components PT1M km/s Cartesian GSE 3 Flow velocity vector, GSE Vx(GSE) 1 Column24 km/s Vy(GSE) 2 Column25 km/s Vz(GSE) 3 Column26 km/s Proton Vector Velocity Proton density Column27 Proton density PT1M no./cc Proton NumberDensity Proton temperature Column28 Proton scalar temperature PT1M deg K Proton Temperature Spacecraft position Position of ACE spacecraft, GSE cartesian components PT1M Re Cartesian GSE 3 Spacecraft position vector, GSE X(ACE,GSE) 1 Column29 Re Y(ACE,GSE) 2 Column30 Re Z(ACE,GSE) 3 Column31 Re Positional Bow shock nose position Bow shock nose position, as computed from observed data and models, 3 cartesian components PT1M Re Cartesian GSE 3 Bow shock nose (BSN) position vector, GSE X(BSN,GSE) 1 Column32 Re Y(BSN,GSE) 2 Column33 Re Z(BSN,GSE) 3 Column34 Re Other Mean time shift Column08 Time shift from observation time to bow shock nose (BSN) arrival time, as averaged over all 15-16 sec B values with BSN arrival times in minute of interest PT1M sec Other Numbers of points in field and plasma averages Numbers of fine scale points in field and plasma averages PT1M 2 Numbers of fine scale points in field and plasma averages Numbers of fine scale points in field averages 1 Column05 Numbers of fine scale points in plasma averages 2 Column22 Other spase://SMWG/Observatory/ACE ACE Advanced Composition Explorer 1997-045A Explorer 71 2009-05-20T20:00:12Z The objective of the Advanced Composition Explorer (ACE) is to collect observations of particles of solar, interplanetary, interstellar, and galactic origins, spanning the energy range from that of KeV solar wind ions to galactic cosmic ray nuclei up to 600 MeV/nucleon. Definitive studies will be made of the abundances of essentially all isotopes from H to Zn (Z = 1-30), with exploratory isotope studies extending to Zr (Z = 40). The ACE payload includes six high resolution spectrometers, each designed to provide the optimum charge, mass, or charge-state resolution in its particular energy range. Each spectrometer has a geometry factor optimized for the expected flux levels, so as to provide a collecting power greater by a factor of 10-1000 times that of previous or planned experiments. The payload also includes three additional instruments of standard design to monitor energetic electrons, H and He ions, and a magnetometer. The ACE spacecraft is based on the design of the Charge Composition Explorer, built at JHU/APL for the Active Magnetospheric Particle Tracer Explorer (AMPTE) program. The spacecraft spin axis is pointed towards the Sun to within +/- 20 degrees, and it occupies a halo orbit about the L1 Earth-Sun libration point. Powered by solar cells, the spacecraft has a design life of at least five years, and it returns data in daily tape recorder dumps, received through NASA JPL's Deep Space Network and initially processed at NASA-GSFC. The average data telemetry rate is 6.7 Kbs. spase://SMWG/Person/Edward.C.Stone.Jr PrincipalInvestigator ACE Home Page http://www.srl.caltech.edu/ACE/ ACE mission home page at Caltech with data download NSSDC's Master Catalog http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1997-045A Information about the ACE mission spase://vspo/observatory/2 Heliosphere.NearEarth Heliosphere.Inner spase://SMWG/Instrument/ACE/SWEPAM Solar Wind Electron, Proton and Alpha Monitor (SWEPAM) SWEPAM 2009-05-20T21:10:13Z The Solar Wind Electron, Proton, and Alpha Monitor (SWEPAM) instrument sensors measure solar wind electrons at 1 - 900 eV energy and ions at 0.26 - 35 keV. The instrument consists of separate electron and ion analyzers originally built as spares for the Ulysses mission. The two sensors both utilizes curved-plate electrostatic analyzers (ESAs) consisting of spherical sections cut into sectors. Biased channel electron multipliers (CEMS) are spaced along the exit apertures of the ESAs for ion and electron detection. Different CEMs sample different portions of the fan-shaped fields of view. The ion sensor consists of a 105-degree bending angle ESA with an average radius of 100 mm and a plate spacing of 2.84 mm. Sixteen CEMs contiguously spaced along the exit gap of the ESA give about 5-degree polar angular resolution over the approximately 70-degree opening angle of the acceptance fan. The electron sensor consists of a 120-degree bending angle ESA with an average radius of 41.9 mm and a plate spacing of 3.5 mm. Seven large-funnel CEMs along the exit gap give about 20-degree angular resolution over a 160-degree fan angle. The sensor geometric factors are 0.002 cm2-sr for isotropic response and 0.009 cm2 for unidirectional. Energy resolution is five percent for ions and twelve percent for electrons. SWEPAM data consists of ion and electron rates collected at each energy/charge (E/Q) step, polar lock direction, and azimuthal spin direction. A single spacecraft spin period of 12 seconds is sufficient for accumulation of count matricies to fully calculate the electron and ion distribution functions from which bulk moments (solar wind speed, density, temperature) can be calculated by ground data processing. Accumulated counts will actually be summed over one-minute intervals for increased statistical accuracy and for reduction of telemetry requirements. Limited data from single spins will be provided for timing of the passage of transient solar wind structures. spase://SMWG/Person/David.J.McComas CoInvestigator spase://SMWG/Person/Ruth.Skoug TechnicalContact SWEPAM home page at LANL http://swepam.lanl.gov Information about the SWEPAM instrument, with links to data and other documentation NSSDC's Master Catalog http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1997-045A&ex=7 Information about the Solar Wind Electron, Proton and Alpha Monitor (SWEPAM) experiment on the ACE mission. spase://SMWG/instrument/1997-045A-07 ElectrostaticAnalyser Solar Wind Electron, Proton and Alpha Monitor (SWEPAM) on ACE spase://SMWG/Observatory/ACE spase://SMWG/Instrument/ACE/MAG ACE Magnetic Field Instrument ACE Magnetometer ACE MAG ACE MFI 1997-045A-09 2009-05-20T21:10:13Z The ACE Magnetometer (MAG) experiment consists of two triaxial fluxgate magnetometers mounted remotely on booms extending beyond the spacecraft solar panels at four meters from the spacecraft center. Each identical sensor (M1, M2) has a wide dynamic range of sensitivity at +- 0.004 to +- 65536 nT and measures the three vector components of the magnetic field. Usage of twin magnetometer sensors for measurements of weak interplanetary magnetic fields is a proven approach based on experience from many past space missions. The MAG sensors were originally built as spares for the MFI instrument on the WIND spacecraft and have been given minor modifications for inclusion on ACE. Readout of MAG data includes three data types: (1) average magnetic field vectors from the primary and secondary sensors, (2) "Snap-Shot Memory" data, and (3) Fast Fourier Transform (FFT) data. The average vector readout includes 216 bps corresponding to six vectors per second. These vector readouts can be split between M1 and M2 in the ratios of 3:3, 5:1, or 6:0. The "Snap-Shot Memory" stores field vectors at the maximum sampling rate of 30 vectors per second and is read out at 48 bps. The FFT readout includes 17 seconds accumulation of vector data transformed into spectral matrices of the components and total magnitude at a transmission rate of 32 bps. Prof. Norman F. Ness of the Bartol Research Institute at the University of Delaware is the MAG Experiment Manager. spase://SMWG/Person/Norman.F.Ness CoInvestigator spase://SMWG/Person/Charles.W.Smith TechnicalContact Instrument description http://www.ssg.sr.unh.edu/mag/ACE.html Description of the ACE magnetometer design and instrument characteristics, with links to data and other documentation NSSDC's Master Catalog http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1997-045A&ex=9 Information about the Magnetometer (MAG) experiment on the ACE mission. spase://SMWG/instrument/1997-045A-09 Magnetometer Magnetometer (MAG) on ACE spase://SMWG/Observatory/ACE spase://SMWG/Repository/NASA/GSFC/SPDF SPDF 2008-08-26T21:02:30Z Space Physics Data Facility spase://SMWG/Person/Tamara.J.Kovalick GeneralContact spase://SMWG/Person/Robert.M.Candey TechnicalContact spase://SMWG/Person/Robert.E.McGuire ProjectScientist SPDF http://spdf.gsfc.nasa.gov/ Space Physics Data Facility spase://vspo/repository/61 spase://SMWG/Repository/SPDF spase://SMWG/Person/Natalia.E.Papitashvili Dr. Natalia E. Papitashvili GSFC-Code 612.4 spase://SMWG/Person/Norman.F.Ness 2000-07-31T00:00:00Z Dr. Norman F. Ness University of Delaware nfness@bartol.udel.edu +1-302-831-8116 spase://SMWG/Person/Tamara.J.Kovalick 2008-03-19T00:00:00Z Ms. Tamara J. Kovalick GSFC-Code 672 Tamara.J.Kovalick@nasa.gov +1-301-286-9422 spase://SMWG/Person/Robert.E.McGuire 2007-05-30T15:25:24Z Dr. Robert E. McGuire NASA Goddard Space Flight Center

Code 672, Greenbelt, MD 20771, USA

mcguire@mail630.gsfc.nasa.gov 1-301-286-7794 spase://SMWG/Person/Robert.M.Candey 2007-05-30T19:43:56Z Mr. Robert M. Candey NASA Goddard Space Flight Center

Code 672, Greenbelt, MD 20771, USA

robert.m.candey@nasa.gov 1-301-286-6707 spase://SMWG/Person/Joseph.H.King 2003-08-06T00:00:00Z Dr. Joseph H. King GSFC-Code 560 jking@mail630.gsfc.nasa.gov +1-301-867-0084 spase://SMWG/Person/Charles.W.Smith Dr Charles W. Smith University of New Hampshire spase://SMWG/Person/David.J.McComas Dr. David J. McComas Southwest Research Institute spase://SMWG/Person/Edward.C.Stone.Jr 2001-04-02T00:00:00Z Prof. Edward C. Stone, Jr. California Institute of Technology ecs@srl.caltech.edu +1-626-395-8321 spase://SMWG/Person/Ruth.Skoug Ruth Skoug LANL