PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM RELEASE_ID = 0001 REVISION_ID = 0000 INSTRUMENT_HOST_NAME = "MARS EXPRESS" INSTRUMENT_HOST_ID = "MEX" MISSION_NAME = "MARS EXPRESS" OBJECT = TEXT PUBLICATION_DATE = 2007-01-31 NOTE = "MEX ASPERA-3 STANDARD DATA ARCHIVE" END_OBJECT = TEXT END MEX ASPERA-3 STANDARD DATA ARCHIVE 1. Overview ============================================================================== This archive contains solar wind parameters derived from ion data from the Ion Mass Analyzer (IMA) component of the ASPERA-3 instrument from the Mars Express mission. The general scientific objectives of ASPERA-3 are to study the solar wind and atmosphere interaction, and to characterize the plasma and neutral gas environment in the near-Mars space through energetic neutral atom (ENA) imaging and in-situ plasma measurements. The specific science measurements to carry out these goals are: 1. Integral ENA fluxes in the energy range of 0.1 to 60 keV. Neutral Particle Imager (NPI) 2. Mass/energy resolved neutral hydrogen and oxygen atom spectra in the energy range of 0.1 to 100 keV. Neutral Particle Detector (NPD) 3. Ion energy/mass/angle resolved spectra in the energy range of 0.01 to 40 keV; 1-106 atomic mass units per unit charge (amu/q); with 4pi steradian coverage. Ion Mass Analyzer (IMA) 4. Electron spectra in energy range of 0.05 eV to 20 keV, with up to 4pi steradian coverage. However, due to spacecraft blockage, 4pi coverage is never really achieved. Electron Spectrometer (ELS) The ASPERA-3 archived data sets contain data measurements necessary to satisfy the scientific goals and objectives. Getting Started: ---------------- For more information and detail concerning the organization and contents of the ASPERA-3 data sets, refer to the ASPERA-3 Experiment to Archive Interface Control Document (EAICD) found in the DOCUMENT directory (MEX_ASPERA3_PSA_ICD_V02_02). The ASPERA3_SWM.CAT file found in the CATALOG directory provides the solar wind parameters data set description. Look in the DOCUMENT directory for the following: Algorithm Description Documents SWM_REPORT.PDF - Provides detailed information about the solar wind parameters 2. Online Deliveries and Data Releases ============================================================================== The ASPERA-3 data files and labels are organized onto logical archive e-volumes (electronic volumes). A single ASPERA-3 data set (e.g., ELS EDR, NPI EDR/RDR, etc.) for a specified time interval is organized as a single archive e-volume. The PSA release object/mechanism is used for archive e-volume generation and submission. This means that each logical e-volume is a data release since they are for specific time periods. In other words, a logical archive e-volume is identical to a data set release. The collection of data set releases comprises the entire data set (all data for the whole mission). Once the data and files are generated and organized for a data release, the archive e-volume (or data set release) is ready for validation. The PSA Volume Validation (PVV) software tool is used to ensure all files are present and conform to PSA/PDS standards and to deliver the e-volume to PSA/PDS. 3. File Formats ============================================================================== The PDS Table object is used for the ASPERA-3 solar wind parameter data, and the data are in ASCII form. 4. Applicable Software ============================================================================== Any software or library that can read ASCII text files with the data in columns. 5. Whom to Contact for Information ============================================================================== MEX Project Scientist: Dr. Dima Titov email: dtitov@esa.int phone: (31) 71 565 3770 fax: (31) 71 565 4697 smail: Postbus 290, 2200 AG Noordwijk, NL MEX Archive Scientist: Emmanuel Grotheer e-mail: egrotheer@sciops.esa.int phone: (34) 91 81 31 463 fax: (34) 91 81 31 325 smail: ESAC, SRE-OOT, PO BOX 78, E-28691, Villanueva De La Canada, Madrid, Spain For any PSA related issues: PSA Helpdesk: psahelp@cosmos.esa.int ASPERA-3 PI: Dr. Mats Holmstrom Swedish Institute of Space Physics (IRF), Kiruna, Sweden email: matsh@irf.se Co-PI: Dr. Stas Barabash Swedish Institute of Space Physics (IRF), Kiruna, Sweden email: stas@irf.se Data Manager: Mr. Leif Kalla Swedish Institute of Space Physics (IRF), Kiruna, Sweden email: leif@irf.se Archive Manager: Ms. Sandee Jeffers Southwest Research Institute (SwRI), San Antonio, TX email: sjeffers@swri.org NASA PDS Archivist: Mr. Steve Joy UCLA-IGPP Los Angeles, CA, 90095-1567 email: sjoy@igpp.ucla.edu 6. Cognizant Persons ============================================================================== PSA: Dr. Sebastien Besse, ESA Planetary Science Archive Science Lead European Space Astronomy Centre (ESAC), Madrid, Spain PDS-PPI: Mr. Steve Joy University of California in Los Angeles (UCLA)