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PDS_VERSION_ID = PDS3
RECORD_TYPE = STREAM
INSTRUMENT_HOST_NAME = "ROSETTA-ORBITER"
OBJECT = TEXT
PUBLICATION_DATE = 2017-08-30
INTERCHANGE_FORMAT = ASCII
NOTE = "ASCII description of the NavCam Archive"
END_OBJECT = TEXT
END
*************************** File AAREADME.TXT ****************************
Acronyms:
==============================================================================
A/D: Analogue-to-Digital
AIU: Avionics Interface Unit
AOCS: Attitude and Orbit Control System
APID: Application Process Identifier
CAM-BAF: Camera Baffle
CAM-EU: Camera Electronics Unit
CAM-OH: Camera Optical Head
CCD: Charge Coupled Device
CODMAC: Committee On Data Management, Archiving and Computation
DDS: Data Distribution System
DMS: Data Management System
DNA: Defocussed imaging with No Attenuation
EAICD: Experimenter to (Science) Archive Interface Control Document
ESA: European Space Agency
ESAC: European Space Astronomy Centre
ESOC: European Space Operations Centre
EU: Electronics Unit
FA: Focussed Attenuation
FITS: Flexible Image Transport System
FNA: Focussed imaging with No Attenuation
FOV: Field Of View
ftp: file transfer protocol
HK: Housekeeping
JPEG: Joint Photographic Experts Group
NASA: National Aeronautics Space Administration
NavCam: Navigation Camera
OBT: On-Board Time
OH: Optical Head
PDS: Planetary Data System
PSA: Planetary Science Archive
PSA-DH: Planetary Science Archive Data Handler
RMOC: Rosetta Mission Operations Centre
RO: Rosetta Orbiter
S/C: Spacecraft
SCIOPS: Science Operations Department
SGS: Science Ground Segment
SSMM: Solid State Mass Memory
TC: Telecommand
TM: Telemetry
UTC: Coordinated Universal Time
WCS: World Coordinate System (FITS)
==============================================================================
Overview:
==============================================================================
This data set contains instrument raw data from the Navigation Camera
(NavCam) onboard the ROSETTA spacecraft (S/C) from the Prelanding Phase.
The time interval starts on Aug, 1st 2014 and ends on Sep, 2nd 2014.
From May 2014, NAVCAM has begun to take regular images, starting with 5 per
day and with an increasing rate. From July 30th, the Navcam images were taken
one image every 30 minutes, during the comet approach sequence. From Aug 1st
to Aug 22nd, the frequency of the navigation slots was of once per hour. Then,
until Sep 2nd, one 2x2 raster with four images was taken every four hours.
Onboard the Rosetta Orbiter (RO) there are two identical NavCams, providing
complete redundancy, in the event of Single Point Failure (SPF). Each NavCam
unit consits of a Camera Baffle (CAM-BAF), Camera Optical Head (CAM-OH) and
a Camera Electronics Unit (CAM-EU) and is capable of providing multiple
operating modes to fully satisfy the requirements of the Rosetta mission with
respect to the autonomous tracking and attitude determination.
==============================================================================
PRL-MTP006 NavCam Data Archive:
==============================================================================
a) S/C Data
=========================
CODMAC Level / Type Data Type Data Content
2 / EDITED Data Image RAW TM of IMAGE and HK Data
The data can be found in the following directory:
*/DATA/
The data products are in the form of RAW images each with a detached label.
b) Supporting Files
=========================
Supporting files for the Archive end user include PDS: documentation,
descriptions and searchable indices. These are organised into three sub-
directories immediately below the root directory:
- CATALOG
- DOCUMENT
- INDEX
==============================================================================
Structure of the Volume:
==============================================================================
Root Directory
|
|--- AAREADME.TXT (PDS required introduction to the data set )
|
|../BROWSE/
| |
| |--- BROWINFO.TXT (List of the BROWSE folder contents)
| |
| |../CAM1/
| | |
| | |--- *.JPG Files (Thumbnail of each data product: JPEG format)
| | |--- *.LBL Files (Detached label file for each browse product)
| | =
| |
| |../CAM2/
| | |
| = |--- *.JPG Files (Thumbnail of each data product: JPEG format)
| |--- *.LBL Files (Detached label file for each browse product)
| =
|
|../CATALOG/
| |
| |--- CATINFO.TXT (List of the CATALOG folder contents)
| |--- *.CAT Files
| =
|
|../DATA/
| |
| |../CAM1/
| | |
| | |--- *.IMG Files (Data products in IMAGE format)
| | |--- *.LBL Files (Detached label files for each data product)
| | =
| |
| |../CAM2/
| | |--- *.IMG Files (Data products in IMAGE format)
| | |--- *.LBL Files (Detached label files for each data product)
| =
|
|../DOCUMENT/
| |
| |--- DOCINFO.TXT (List of the DOCUMENT folder contents)
| |--- RO-SGS-IF-0001.TXT Files (ASCII version of EAICD)
| |--- RO-SGS-IF-0001.PDF Files (PDF version of EAICD)
| |--- RO-SGS-IF-0001.LBL Files (EAICD label)
| |--- LOST_ROWS_MTP<nnn>.LBL Files (Lost rows file label)
| |--- LOST_ROWS_MTP<nnn>.TAB Files (Lost rows file, optional )
| |--- LOST_IMAGES_MTP<nnn>.LBL Files (Lost images file label)
| |--- LOST_IMAGES_MTP<nnn>.TAB Files (Lost images file, optional)
|
|
|../EXTRAS
| |
| |../CAM1/
| | |
| | |---*F.FIT Files (FITS format files)
| | |-- *F.LBL Files (Label of the FIT files)
| | =
| |
| |
| |../CAM2/
| | |
| | |---*F.FIT Files (FITS format files)
| | |-- *F.LBL Files (Label of the FIT files)
| | =
| |
|
|../INDEX
| |
| |--- INDXINFO.TXT (List of the INDEX folder contents)
| |--- INDEX.LBL (Detached label file for INDEX.TAB)
| |--- INDEX.TAB (Index of the data set in tabular format)
| |--- BROWSE_INDEX.TAB (Index of the browse products)
| |--- BROWSE_INDEX.LBL (Detached label for the browse index)
| |--- GEO_NAVCAM_*.TAB (Geometry Index)
| |--- GEO_NAVCAM_*.LBL (Geometry Index Label)
| |--- NAVCAM_*INDEX.TAB (Additional Index)
| |--- NAVCAM_*INDEX.LBL (Additional Index Label)
|
=
The ROSETTA project decided that the data would be archived in the PDS Version
3 format and, consequently, the layout of this volume and all associated label
files for each file conform to the PDS / PSA guidelines.
==============================================================================
Contact Information:
==============================================================================
Data generated by:
Bernhard Geiger
SRE-OO
ESAC, P.O. Box 78,
Villanueva de la Canada,
Madrid, 28691,
Spain.
bgeiger@sciops.esa.int
and
Michael Kueppers
SRE-OO
ESAC, P.O. Box 78,
Villanueva de la Canada,
Madrid, 28691,
Spain.
mkueppers@sciops.esa.int
==============================================================================