Data Set Information
DATA_SET_NAME GIOTTO EXTENDED MISSION DUST IMPACT DETECTOR V1.0
DATA_SET_ID GIO-C-DID-3-RDR-GRIGG-SKJELL-V1.0
NSSDC_DATA_SET_ID 85-056A-00E
PSSB-00025
DATA_SET_TERSE_DESCRIPTION This dataset contains the results obtained from the Dust Impact Detection System (DIDSY) flown aboard the GIOTTO spacecraft during its extended mission to Comet P/Grigg-Skjellerup in 1992. (SAVED DATA)
DATA_SET_DESCRIPTION
Data Set Overview
      =================
      This dataset contains the results obtained from the Dust Impact
      Detection System (DIDSY) flown aboard the GIOTTO spacecraft during
      its extended mission to Comet P/Grigg-Skjellerup in 1992.  The
      measurements and analysis of the three impacts detected during close
      approach are contained in text files.  Calibration tables for the
      sensors are included in this dataset.
 
 
      Parameters
      ==========
      The timing and masses of the impacting meteroid are tabulated within
      the DOCUMENT file, 'didtext.doc'.
 
 
      Processing
      ==========
      See the 'didtext.doc' file for details of the data processing and
      analysis.
 
      For PDS ingest, the shield map files were each pulled out of the
      original text file and formatted as separate PDS TABLE files, each
      with its own label.
 
 
      Data
      ====
      The data set consists of four files:
 
         didtext.doc       An early draft of a paper published in April
                           1993 as a Letter to Nature.  This file provides
                           a description of the experiment, presents the
                           results and includes a discussion of the data
                           analysis
         did2map.tab       These files contain the bumper shield maps for
         did3map.tab       each of the three sensors active during the
         did4map.tab       flyby.  The maps indicate relative sensitivity
                           of each area on the shield compared to a direct
                           impact on the sensor.
 
      Ancillary Data
      ==============
      There is no ancillary data to this data set.
 
      Coordinate System
      =================
      See the analysis section of the 'didtext.doc' file for a description
      of the geometry of the impacts.
 
      Software
      ========
      Not applicable.
 
      Media/Format
      ============
      These data are available as part of the Giotto Extended Mission CDROM.
DATA_SET_RELEASE_DATE 1995-12-01T00:00:00.000Z
START_TIME 1992-07-09T06:42:00.000Z
STOP_TIME 1992-07-11T05:42:00.000Z
MISSION_NAME GIOTTO EXTENDED MISSION
MISSION_START_DATE 1990-01-01T12:00:00.000Z
MISSION_STOP_DATE 1992-01-01T12:00:00.000Z
TARGET_NAME 26P/GRIGG-SKJELLERUP 1 (1922 K1)
TARGET_TYPE COMET
INSTRUMENT_HOST_ID GIO
INSTRUMENT_NAME DUST IMPACT DETECTOR
INSTRUMENT_ID DID
INSTRUMENT_TYPE DUST DETECTOR
NODE_NAME Small Bodies
ARCHIVE_STATUS SAFED
CONFIDENCE_LEVEL_NOTE
Confidence Level Overview
      =========================
      See the 'didtext.doc' file for a discussion of the analysis procedure
      as well as the effects of the previous encounter with Comet P/Halley
      on the DIDSY sensitivity at P/Grigg-Skjellerup.
 
      Review
      ======
      These data were reviewed for ingest into the PDS permanent archives in
      December 1995.
 
      Data Coverage and Quality
      =========================
      See the 'didtext.doc' file.
 
      Limitations
      ===========
      See the 'didtext.doc' file.
CITATION_DESCRIPTION Unknown
ABSTRACT_TEXT This dataset contains the results obtained from the Dust Impact Detection System (DIDSY) flown aboard the GIOTTO spacecraft during its extended mission to Comet P/Grigg-Skjellerup in 1992. The measurements and analysis of the three impacts detected during close approach are contained in text files. Calibration tables for the sensors are included in this dataset. These data have not been reviewed or formally archived with the PDS.
PRODUCER_FULL_NAME PDS SMALL BODIES NODE
SEARCH/ACCESS DATA
  • SBN Comet Website