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PDS_VERSION_ID = PDS3
PRODUCT_ID = "AAREADME.TXT"
RECORD_TYPE = STREAM
INSTRUMENT_HOST_NAME = "ROSETTA-ORBITER"
INSTRUMENT_ID = "COSIMA"
TARGET_NAME = "67P/CHURYUMOV-GERASIMENKO 1 (1969 R1)"
OBJECT = TEXT
PUBLICATION_DATE = 2015-09-10
NOTE = "ROSETTA-ORBITER 67P COSIMA 3 V2.0"
END_OBJECT = TEXT
END
COSIMA DATA ARCHIVE 1.0
=======================
1. Introduction
---------------
This PDS dataset contains COSIMA data from the ground calibration
phase from 2002-05-29 up to the end of the prelanding phase 2014-11-20.
COSIMA instrument has 72 different dust collecting substrates, in
groups of 3 in 24 target holders. To understand the dust grain
spectrum, one has to know the substrate background spectrum. For
this reason, the operational history of each substrate is given.
The history contains information about substrate storage and expose
periods, cleaning and heating actions, COSISCOPE camera images and
grains lists and any spectra taken. The history product contains
history from the moment substrates were installed in the COSIMA
flight instrument.
The user of the database is suggested to start from the 72 substrate
history products instead of the INDEX.TAB normally used in the PDS
datasets.
COSISCOPE camera can take 1024*1024 pixel images with 10 bit
brightness information. Instead of sending full images, part of the
image can be masked. In addition, COSISCOPE can detect prominent
grains collected on the substrate during the expose. These grain
lists contain size, position and brightness information.
COSIMA uses Indium ion beam to extract secondary ions from the dust
grains. The time of flight mass spectrometer can detect ion events in
131072 time bins, each 1.953125 ns in length. The spectrum can be
divided to 3 subspectrums to reduce the telemetry. In addition, the
mass scale can be established on board COSIMA and only the peaks of
the first 300 organic and inorganic masses can be sent.
The COSIMA data in this archive has been provided by Finnish
Meteorological Institute. The instrument Primary Investigator is Dr
Martin Hilchenbach, Max Planck Institute for Solar System Research.
2. Volume format
----------------
3. File formats
---------------
Data product files in this data archive are in ASCII format, except
COSISCOPE images, which are binary. Data products are TABLEs and
FITS-images.
Documentation files are provided always in ASCII and possibly as PDF
files.
COSIMA data products use attached labels. The labels point to
external format containers (*.FMT files), saved in the LABEL
subdirectory of this archive.
Data structure is described in the COSIMA SIS document,
COSIMASIS.ASC, that can be found in the DOCUMENT subdirectory
4. Archive contents
------------------
File Description
TOP-LEVEL-DIRECTORY
|
|- AAREADME.TXT This file
|
|- VOLDESC.CAT Description of the data volume
|
|- [CATALOG] The directory containing information
| | about COSIMA calibration data set
| |
| |- CATINFO.TXT Info about CATALOG directory contents
| |
| |- MISSION.CAT Rosetta mission description, provided
| | by Rosetta project
| |
| |- INSTHOST.CAT Rosetta spacecraft description,
| | provided by Rosetta project
| |
| |- INST.CAT COSIMA instrument description
| |
| |- DATASET.CAT Dataset description
| |
| |- SOFT.CAT Software description. Empty for
| | COSIMA datasets
| |
| |- PERSON.CAT Dataset provider contact information
| |
| |- REF.CAT References
| |
| |- TARGET.CAT Target descriptions
|
|- [DATA] The directory for instrument data
| | products
| |
| |- [SUB_YXX] Substrate YXX data products, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal
| | |
| | |- CS_YXX_SUBSTRATE_HIST.TAB
| | | Substrate history product, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_SP_Z.TAB
| | | Substrate spectrum, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date. Z is either P for positive
| | | or N for negative spectrum.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_PK_Z.TAB
| | | Substrate peak list, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date. Z is either P for positive
| | | or N for negative peak list.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_S_HK.TAB
| | | Substrate spectrum or peak list
| | | housekeeping data, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_SCAN.TAB
| | | Substrate scan data, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_SCHK.TAB
| | | Substrate scan
| | | housekeeping data, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_HEAT.TAB
| | | Substrate heating data, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_CLEA.TAB
| | | Substrate cleaning data, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_CLHK.TAB
| | | Substrate cleaning
| | | housekeeping data, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_GR__.TAB
| | | Substrate grain list, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_IM_Z.FIT
| | | Substrate FITS-format image, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date. ZZ is either P for right
| | | (plus) side led or M (minus) for
| | | left side led illumination.
| | |
| | |- CS_YXX_YYYYMMDDTHHMMSS_G_HK.TAB
| | | Substrate grain list or image
| | | housekeeping data, where
| | | Y is substrate target holder position
| | | 1=top, 2=middle, 3=bottom. XX is
| | | target holder ID number, range
| | | from C1 to D8, where counting is done
| | | in hexadecimal. YYYYMMDDTHHMMSS is
| | | the date.
|
|- [DOCUMENT] The directory for documentation
| |
| |- DOCINFO.TXT Info about DOCUMENT directory
| | contents
| |
| |- COSIMASIS.ASC COSIMA PDS interface description
| | in ASCII format
| |
| |- COSIMASIS.PDF COSIMA PDS interface description
| | in PDF format
| |
| |- COSIMASISXXX.JPG COSIMA PDS interface description
| | figures for ASCII version,
| | XXX is gives the figure number in
| | the form 001, 002
| |
| |- COSIMAPAPER.ASC COSIMA instrument paper
| | in ASCII format
| |
| |- COSIMAPAPER.PDF COSIMA instrument paper
| | in PDF format
| |
| |- COSIMAPAPERXXX.JPG COSIMA instrument paper
| | images in JPG format.
|
|- [INDEX] The directory for index files
| |
| |- INDEX.LBL A PDS detached label describing
| | INDEX.TAB
| |
| |- INDEX.TAB Tabular summary of the data files
| |
| |- INDXINFO.TXT Info about INDEX directory contents
|
|- [LABEL] The directory for formatting files
| | used by the attached labels
| |
| |- LABINFO.TXT Info about LABEL directory contents
| |
| |- COSIMA_HISTORY.FMT Substrate history column object
| | definitions
| |
| |- COSIMA_SPECTRUM_DATA.FMT
| | Spectrum column object
| | definitions
| |
| |- COSIMA_SPECTRUM_HK.FMT Spectrum housekeeping statistics
| | column object definitions
| |
| |- COSIMA_SPECTRUM_PEAKS.FMT
| | Spectrum peak data column object
| | definitions
| |
| |- COSIMA_SPECTRUM_PEAK_SCALE.FMT
| | Spectrum peak data scaling column
| | object definitions
| |
| |- COSIMA_SPECTRUM_TDC_CALIB.FMT
| | Spectrum time to digital unit
| | temperature calibration result
| | column object definitions
| |
| |- COSIMA_SPECTRUM_TDC_TIMING.FMT
| | Spectrum time to digital unit
| | timing setup column object
| | definitions
| |
| |- COSIMA_CLEANING.FMT Substrate cleaning column
| | object definitions
| |
| |- COSIMA_HEATING_DATA.FMT
| | Substrate heating data column
| | object definitions
| |
| |- COSIMA_HEATING_SETUP.FMT
| | Substrate heating setup column
| | object definitions
| |
| |- COSIMA_SCAN_DATA.FMT Substrate scan column
| | object definitions
| |
| |- COSISCOPE_GRAINS.FMT Cosiscope grain search result
| | column object definitions
| |
| |- COSISCOPE_HK.FMT Cosiscope housekeeping statistics
| column object definitions
5. Errata
----------
6. Contacts
-----------
For questions concerning the COSIMA instrument and data itself
Martin Hilchenbach
Max Planck Institute for Solar System Research
Justus-von-Liebig-Weg 3
37077 Goettingen, Germany Max-Planck-Str. 2
Germany
Phone: +49-551-384979-162
Email: Hilchenbach@mps.mpg.de
For questions conserning this COSIMA PDS data set
Jouni Ryno
Finnish Meteorological Institute
Space Research
P.O.Box 503
FI-00101 Helsinki
Finland
Phone: +358-50-5302903
Email: Jouni.Ryno@fmi.fi