Data Set Information
DATA_SET_NAME ROSETTA-ORBITER 67P RPCIES 2 ESC1 V2.0
DATA_SET_ID RO-C-RPCIES-2-ESC1-V2.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION Data Set Overview : The following describes the nature of instrument operation during the various periods for which IES data are available in this submission. In all cases the data are electron and ion counts as function of energy, azimuth (direction in the instrument symmetry plane) and elevation (angle above or below the symmetry plane). IES measured solar wind plasma continuously throughout this phase except for an occasional brief period if the S/C pointing was not optimal. Frequently low energy (<50 eV) ions were observed. These ions are believed to have been produced locally by photoionization and attracted to the S/C when charged negatively by an electron cloud. In addition, higher energy (~keV) pickup ions were observed from time to time. 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. SUB_SPACECRAFT_LATITUDE, SUB_SPACECRAFT_LONGITUDE are given in the Cheops reference frame. These parameters are computed at time t:START_TIME. Distances are given in km, angles in degrees. Updates for Version 2.0 : This version implements the recommendations from the 2016 scientific peer review. Most relevant changes include the addition of the cycle duration field in the data products and a machine readable file in PDS format with the modes and their associated parameters.
DATA_SET_RELEASE_DATE 2017-06-05T00:00:00.000Z
START_TIME 2014-11-20T12:11:14.365Z
STOP_TIME 2015-03-10T11:58:29.505Z
MISSION_NAME INTERNATIONAL ROSETTA MISSION
MISSION_START_DATE 1995-03-01T12:00:00.000Z
MISSION_STOP_DATE N/A (ongoing)
TARGET_NAME 67P/CHURYUMOV-GERASIMENKO 1 (1969 R1)
TARGET_TYPE COMET
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 IN LIEN RESOLUTION
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. Caveat about using IES Level 3 Differential Energy Flux data: The background subtraction technique used in the production of the Level 3 Differential Energy Flux data does not work well for certain modes and as a result, the flux values may be slightly different from nominal. Please contact the IES team before using the data. Once the background subtraction issue is resolved, the IES team will deliver updated data. Review : This archival data set was examined by the IES science team prior to submission to the NASA Planetary Data System (PDS) and ESA Plantetary Science Archive (PSA). It was reviewed by PDS, PSA, and the Rosetta data archive working group. The current set was peer reviewed scientifically in 2016 by external experts and the recommendations and fixes have been implemented. Limitations : None.
CITATION_DESCRIPTION Trantham, B., ROSETTA-ORBITER 67P RPCIES 2 ESC1 V2.0, RO-C-RPCIES-2-ESC1-V2.0, ESA Planetary Science Archive and NASA Planetary Data System, 2017
ABSTRACT_TEXT This dataset contains EDITED DATA of the Rosetta RPCIES instrument taken during the comet escort 1 phase (ESC1). The target of this phase was comet 67P/CHURYUMOV-GERASIMENKO 1 (1969 R1). Included are the data taken between 20 Nov 2014 and 10 Mar 2015. This dataset supersedes the previous RO-C-RPCIES-2-ESC1-V1.0 dataset. The primary change is the addition of the cycle duration field to the data products.
PRODUCER_FULL_NAME BRAD TRANTHAM
SEARCH/ACCESS DATA