PDS_VERSION_ID = PDS3
PRODUCT_ID = "AAREADME.TXT"
RECORD_TYPE = STREAM
RELEASE_ID = 0001
REVISION_ID = 0000
OBJECT = TEXT
PUBLICATION_DATE = 2016-10-01
NOTE = "AAREADME.TXT describes the MEX MARSIS EDR
data archive for the Planetary Science
Archive, PSA and the Planetary Data System,
PDS."
END_OBJECT = TEXT
END
Mars Express Experiment Data Record Volume
MEX-M-MARSIS-2-EDR-EXT1-V2.0
* Introduction
* Volume Overview - Quick Start Guide
* Volume Contents and Structure
* Data File Format
* Disclaimer
* Acknowledgments
==============================================================================
Introduction
==============================================================================
This volume set contains the MARSIS Experiment Data Record (EDR) data products
for the entire primary mission. This data set consists of the instrument
telemetry correlated with the auxiliary information needed to locate
observations in space and time. Level 1b data intended users are radar
scientists interested in re-doing the entire processing of the received
signal.
==============================================================================
Volume Overview - Quick Start Guide
==============================================================================
MARSIS data in the MARS EXPRESS MARS MARSIS EXPERIMENT DATA RECORD EXTENSION 1
V2.0 are located in the DATA directory, and are organized into sub-directories
containing ten orbits each.
A Data Product contains data from one or more observations collected using the
same operation mode, instrument status and on-board processing scheme within
the same orbit. Thus, the content of each MARSIS data product is highly
variable in terms of number of echoes, and depends on how operations for the
instrument were planned during a given data collection period.
An echo is a sequence of time or spectrum samples of a received signal,
complemented by auxiliary information. A Data Product is a table, in which
each line contains data from a single echo, and each column contains the value
of a single parameter or time sample across different frames.
A Data Product consists of two files: a binary file containing the instrument
telemetry, and a binary table of quantities describing the geometry of
observation, generated on-ground from spacecraft navigation data. Each Data
Product file is described by an attached PDS label. Format files for table
data objects contained in data files, of which several exist according to
operation mode, instrument status and on-board processing scheme, are
contained in the LABEL directory of each Data Set Volume.
Binary data are big-endian numbers of variable size, either integer or
floating point. Format descriptors in the LABEL contain all information needed
to write import routines for processing software. MARSIS data products can be
read by the PDS software NASAView, which reads a PDS label and displays the
associated image or table.
==============================================================================
Volume Contents and Structure
==============================================================================
[MEX-M-MARSIS-2-EDR-EXT1-V2.0] (root directory)
|
|-AAREADME.TXT Plain text describing volume contents,
| organization, and its use (this file).
|
|-ERRATA.TXT Describes known deficiencies or caveats in the
| data on this volume.
|
|-VOLDESC.CAT High level description of volume contents.
|
|
|-[CATALOG] Information about the Mars Express mission, spacecraft,
| and the MARSIS instrument; lists the cognizant personnel
| and references relevant documentation.
|
|-[DATA] Binary archived data from the MARSIS instrument.
| |
| |-[EDR####X] MARSIS Data for a group of ten orbits from ####0 to
| ####9.
|
|
|-[DOCUMENT] Instrument Flight User Manual, Experiment Interface
| Control Document, etc.
|
|-[INDEX] Volume and cumulative indices of archive products.
|
|-[LABEL] Format descriptions of the archived data products.
==============================================================================
Whom to Contact for Information
==============================================================================
MEX Project Scientist: Dmitri Titov
email: dmitri.titov@esa.int
phone: +31 71 565 37 70
fax : +31 71 565 46 97
smail: ESA-ESTEC, SRE-SM
Keplerlaan 1, PO Box 299
2200 AG Noordwijk ZH
The Netherlands
MEX Archive Scientist: Emmanuel Grotheer
email: egrotheer@sciops.esa.int
phone: +34 91 813 11 00(3)
fax : +34 91 813 11 39
smail: ESA-ESAC
Camino bajo del Castillo, s/n
Urbanizaci?n Villafranca del Castillo
Villanueva de la Ca?ada
E-28692 Madrid
Spain
==============================================================================
Acknowledgments
==============================================================================
The archiving effort at Istituto Nazionale di Astrofisica - Istituto di
Radioastronomia was supported by Federico Cantini, Marco Cartacci, Andrea
Cicchetti, Anton B. Ivanov and Raffaella Noschese. We are thankful to David
Heather and Emmanuel Grotheer of the Planetary Science Archive for their
tireless support.
|