Data Set Information
DATA_SET_NAME ROSETTA-ORBITER CHECK MIDAS 3 CR4A PC8 V3.0
DATA_SET_ID RO-X-MIDAS-3-CR4A-PC8-V3.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION Data from the Micro-Imaging Dust Analysis System of the ROSETTA Orbiter collected in the CRUISE 4-1 mission phase.
DATA_SET_DESCRIPTION
This dataset includes MIDAS data from the ACTIVE CHECKOUT phase #8.
Please note that images acquired during a passive observation are
taken w/o approaching the surface and don't contain meaningful data.

The current release is based on the results of the Comet Science
Reviews held in Feb 2016, Oct 2017 and Oct 2018 and contains the
updates defined in the MIDAS Enhanced Archive Data Delivery contract.

Updates from V1.0
-----------------

Several updates were made in response to the Comet
Science Reviews held in February 2016 and October 2017. Updates have
been made to

- Documentation: MID_EAICD.ASC|PDF, MID_COOR.ASC|PDF (/DOCUMENT)
- Data browser : Updated ReadPDS library to V4.9 (/DOCUMENT/CODE)
- Label files  : Added X/Y scaling factor for images (/DATA/IMG/*.LBL)
- Data files   : Enhanced history files (/DATA/CAH*.TAB|TGH*.TAB)
- Catalog files: Updated to latest versions (/DOCUMENT/CATALOG)
- This file:   : Improved image list facilitates data file referencing

The former updates were done in V2.0 for comet phases but for
pre-comet phases like this one V2.0 was never generated and these
changes were implemented directlly in V3.0.

Additionally Version 3.0 implements the dataset improvements agreed
in the MIDAS Enhanced Archive Data Delivery Contract work packages
101, 102 and 302:

- General      : Updated contact names and addresses (VOLDESC.CAT)
                 Updated dataset content description (AAREADME.TXT)
- Documentation: Updated DOCINFO.TXT, MID_EAICD.ASC|PDF (/DOCUMENT)
                 Added image scan table MID_IMG_CATALOG.TAB|LBL
                 Added tip mapping table MID_TIP_CATALOG.TAB|LBL
                 Added enhanced calibration report MID_CALIBRATION.PDF
                 Added reconstructed images report MID_REC_IMAGES.PDF
                 Added tip image catalogue MID_TIP_IMAGES.PDF
                 Added MIDAS analysts notebook MID_ANALYSTS_NBOOK.PDF
                 Added MIDAS science user guide MID_SCI_USER_GUIDE.PDF
- Data files   : Recalibrated images in X/Y/Z based on the evaluation
                 of the results from the calibration target scans
                 Complemented dataset with reconstructed images
                 Added particle mask image files (DATA/IMG/*_MK.IMG)
                 Added document links to detached label files
                 Added browse images for PSA (/BROWSE/PRV_*_ZS.JPG)
                 Fixed HORIZONTAL/VERTICAL_PIXEL_SCALE calculation
                 Fixed xlength/ylength calculation in image files
                 Fixed number of columns in ROI and SPA data products
- Catalog files: Updated to latest versions (/DOCUMENT/CATALOG)
- This file    : Marked reconstructed and mask images in image list

The following images can be found in the dataset (for a given image,
the name of the respective label file is composed of the file path
associated with the preceding medium term planning period MTPxxx and
the image identifier listed in the second column):

----------------------------------------------------------------------
Scenario  DAQ (YYDDDhhmm)     Target Tip ImgSize    StepSize D MM
                      (D = main scan direction, MM = measurement mode)
----------------------------------------------------------------------
CRUISE                       /DATA/IMG/IMG_0818609_0821003__ZS.LBL
----------------------------------------------------------------------
PC08      001 081870528-081870543  1 DAQ  16  32x 32  1000x 1000 X CON
          002 081870549-081870604  1 DAQ  16  32x 32  1000x 1000 Y CON
          003 081971425-081971427  1 DAQ   1 256x256    24x   24 X DYN
          004 081971521-081971524  1 DAQ   1 256x256    24x   24 X DYN
          005 082010840-082010840 33 DAQ   1  32x 32  1000x 1000 X CON
          006 082011450-082011450 33 DAQ   1  32x 32  1000x 1000 X CON
          007 082090445-082090530  3 CAL   6  64x 64     8x    8 X DYN
          008 082090635-082091313  3 CAL   6 192x192     8x    8 X DYN
          009 082091640-082091810 35 DAQ   6 128x128     4x    4 X DYN
          010 082091940-082100138 35 DAQ   6 256x256     4x    4 X DYN
----------------------------------------------------------------------
(R) denotes that the image has been reconstructed from line scans
(M) indicates that the image has an associated particle mask file
----------------------------------------------------------------------
DATA_SET_RELEASE_DATE 2019-05-17T00:00:00.000Z
START_TIME 2008-07-04T09:09:00.000Z
STOP_TIME 2008-07-28T02:40:00.000Z
MISSION_NAME INTERNATIONAL ROSETTA MISSION
MISSION_START_DATE 1995-03-01T12:00:00.000Z
MISSION_STOP_DATE N/A (ongoing)
TARGET_NAME CHECKOUT
TARGET_TYPE UNKNOWN
INSTRUMENT_HOST_ID RO
INSTRUMENT_NAME MICRO-IMAGING DUST ANALYSIS SYSTEM
INSTRUMENT_ID MIDAS
INSTRUMENT_TYPE SCANNING PROBE MICROSCOPE
NODE_NAME Small Bodies
ARCHIVE_STATUS LOCALLY ARCHIVED
CONFIDENCE_LEVEL_NOTE
Confidence Level Overview
    =========================

      All telemetry data frames produced by MIDAS contained checksums
      that were validated upon ground receipt.

      During the processing of the data in preparation for delivery
      with this volume, the structure of the telemetry data packets
      was verified. This verification included detection of both the
      DDS header and the length of each packet, which ensured that all
      packets were complete and not damaged.

      The validity of the data has been approved by the MIDAS Science
      Lead and Science team members by review of the included images
      and evaluation of the associated housekeeping information.
CITATION_DESCRIPTION T. Mannel, M. Bentley, K. Torkar, H. Jeszenszky and J. Romstedt, ROSETTA-ORBITER CHECK MIDAS 3 CR4A PC8 V3.0, RO-X-MIDAS-3-CR4A-PC8-V3.0, ESA Planetary Science Archive and NASA Planetary Data System, 2019.
ABSTRACT_TEXT The Micro-Imaging Dust Analysis System (MIDAS) is an instrument on the ROSETTA Orbiter that will provide 3D images and statistical parameters of pristine cometary particles, collected in the vicinity of comet 67P/Churyumov-Gerasimenko. This data set includes all data from the CRUISE 4-1 mission phase. This release supersedes version 1.0. Version 2.0 was never generated for pre-comet phases.
PRODUCER_FULL_NAME HARALD JESZENSZKY
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