Data Set Information
|
DATA_SET_NAME |
ROSETTA-ORBITER EARTH RPCIES 2 EAR3 V1.0
|
DATA_SET_ID |
RO-E-RPCIES-2-EAR3-V1.0
|
NSSDC_DATA_SET_ID |
|
DATA_SET_TERSE_DESCRIPTION |
This dataset contains EDITED RAW DATA of the Earth swingby 3
encounter (EAR3). Included are the data taken between
29 Sep 2009 and 14 Nov 2009.
|
DATA_SET_DESCRIPTION |
Data Set Overview
=================
This data set includes data obtained by IES during the period 14
September to 13 December 2009 (referred to as the EAR2 flyby
period by ESA for reference although IES operation was not
continuous during this period). The data of September 29 through
October 1 were taken prior to the Earth flyby, with Rosetta at
approximately 0.26 AU from Earth, showing the solar wind ions and
electrons.
The data from November 11 through November 14, 2009 were taken
during the third Earth flyby. Apparent interruptions in data are
partly the result of S/C turns moving the solar wind out of the
IES FOV. The data gap during close approach, around 0800 UT on
November 13, is the result of having turned IES off to avoid high
count-rates while passing through earth's radiation belts. The
edges of the belts can be seen at the beginning and end of the
gap.
IES did not operate beyond November 14, 2009 in the EAR3 period.
Processing
==========
All Rosetta Plasma Consortium (RPC) data packets are transmitted
together during downlinks with Rosetta. RPC data are retrieved
from the Data Distribution System (DDS) at European Space
Operations Centre (ESOC) to a central RPC data server at
Imperial College London. Data for IES is copied from the RPC
central data server by IESGS at Southwest Research Institute.
The pipeline processing software is the IES Ground System
(IESGS). IESGS extracts IES CCSDS packets from the RPC
collective data files stored on the RPC central data server at
Imperial College. These packets are used to build ion and
electron data products. The data products are grouped by date
and written out to PDS compliant archive data files. One data
file is created for each day. IESGS also generates the labels
for the archive data files. IES science products, archive and
label files, and limited spectrograms are available to team
scientists on the IESGS website.
Coordinate System
=================
In order to determine IES pointing, attitude data for the
Rosetta spacecraft is obtained through SPICE kernels and
converted from the J2000 coordinate system to the HGRTN
coordinate system. HGRTN is the heliocentric RTN system such
that the sun-spacecraft vector defines the positive x-axis and
the positive y-axis is the cross-product of the heliographic
polar axis and the HGRTN positive x-axis. J2000 is the inertial
frame defined by the intersection of the Earth mean equator and
the ecliptic plane at the J2000 epoch of January 1, 2000 at
noon.
The pointing for each bin of IES is thereafter determined by
multiplying the converted spacecraft attitude matrix in HGRTN
by the vector representation of each particle measurement bin.
The resulting vectors represent the flow of particles through
the respective particle measurement bins in HGRTN coordinates.
|
DATA_SET_RELEASE_DATE |
2014-12-04T00:00:00.000Z
|
START_TIME |
2009-09-29T02:35:54.000Z
|
STOP_TIME |
2009-11-14T11:25:38.000Z
|
MISSION_NAME |
INTERNATIONAL ROSETTA MISSION
|
MISSION_START_DATE |
1995-03-01T12:00:00.000Z
|
MISSION_STOP_DATE |
N/A (ongoing)
|
TARGET_NAME |
EARTH
|
TARGET_TYPE |
PLANET
|
INSTRUMENT_HOST_ID |
RO
|
INSTRUMENT_NAME |
ROSETTA PLASMA CONSORTIUM - ION AND ELECTRON SENSOR
|
INSTRUMENT_ID |
RPCIES
|
INSTRUMENT_TYPE |
PLASMA INSTRUMENT
|
NODE_NAME |
Small Bodies
|
ARCHIVE_STATUS |
LOCALLY ARCHIVED
|
CONFIDENCE_LEVEL_NOTE |
Confidence Level Overview
=========================
This dataset is used by the IES science team after processing.
This is done to ensure that the archived data contains good,
valid products.
Review
======
This archival data set was examined by the IES science team
prior to submission to the Planetary Data System (PDS) and was
then reviewed by PDS and the Rosetta data archive working group.
The current set is a resubmission after correcting or
responding to the various RIDs resulting from that review.
Limitations
===========
None.
|
CITATION_DESCRIPTION |
Trantham, B., ROSETTA-ORBITER EARTH RPCIES 2 EAR3 V1.0,
RO-E-RPCIES-2-EAR3-V1.0, ESA Planetary Science Archive and
NASA Planetary Data System, 2015
|
ABSTRACT_TEXT |
This dataset contains EDITED RAW DATA of the Rosetta RPCIES
instrument taken during the Earth swingby 3 event (EAR3). Included
are the data taken between 29 Sep 2009 and 14 Nov 2009.
|
PRODUCER_FULL_NAME |
BRAD TRANTHAM
|
SEARCH/ACCESS DATA |
|