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Advanced Composition Explorer (ACE) Solar Energetic Particle Charge Analyser (SEPICA) Level 2 Data
Entry ID: ACE_SEPICA_LEVEL2

[ Get Data ]

Summary
Abstract: The Solar Energetic Particle Charge Analyser (SEPICA) is used to
determine the charge state distribution of energetic particle
distributions. SEPICA is designed to measure the ionic charge state,
Q, the kinetic energy, E, and the nuclear charge, Z, of energetic ions
above 0.2 MeV/Nuc. This includes ions accelerated in solar flares as
well as in interplanetary space during energetic storm particle (ESP)
and co-rotating interaction region (CIR) events. For low mass numbers
SEPICA will also separate isotopes -- for example, 3He and 4He. During
solar quiet times, SEPICA should also be able to directly measure the
charge states of anomalous cosmic ray nuclei, including H, N, O, and
Ne, which are presumed to be singly-charged. With the capability to
differentiate the charge states of ions, the instrument will also be
able to separate neutral atoms (Q = 0) from ions. Thus it may be able
to identify energetic neutrals created through charge exchange.

SEPICA level 2 data is organized into 27-day time periods (Bartels
Rotations - roughly one solar rotation period). For each Bartels
Rotation, the level 2 data contains time averages of solar energetic
particle fluxes over the following time periods:

- 120-second (H and He only)
- hourly
- (all elements) daily
- (all elements) 27 days (1 Bartels rotation) (all elements)

Currently, spin-averaged flux data are available for 8 elements, in
units of particles/(cm2*Sr*sec*MeV/nucleon), in a number of energy
ranges. The energy ranges are different for each element. The elements
for which data are available are:

- H, He, C, O, Ne, Mg, Si and Fe.


See:
http://www.srl.caltech.edu/ACE/ASC/level2/sepica_l2desc.html

Related URL
Link: GET DATA
Description: ACE SEPICA Level 2 Data


Link: VIEW PROJECT HOME PAGE
Description: ACE Project Home Page


Link: VIEW RELATED INFORMATION
Description: ACE SEPICA Level 2 Documentation


Data Set Citation
Dataset Originator/Creator: ACE SEPICA Team
Dataset Title: ACE SEPICA Level 2 Data
Dataset Release Date: 1997
Dataset Release Place: Pasadena, CA
Dataset Publisher: CalTech
Online Resource: http://www.srl.caltech.edu/ACE/ASC/level2/lvl2DATA_SEPICA.html


Temporal Coverage
Start Date: 1997-08-25


Location Keywords
SPACE > EARTH MAGNETIC FIELD > MAGNETOSPHERE (OTHER)


Science Keywords
SUN-EARTH INTERACTIONS >SOLAR ENERGETIC PARTICLE FLUX >ALPHA PARTICLE FLUX    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ENERGETIC PARTICLE FLUX >ELECTRON FLUX    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ENERGETIC PARTICLE FLUX >ION FLUX    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ENERGETIC PARTICLE PROPERTIES >PARTICLE COMPOSITION    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ENERGETIC PARTICLE PROPERTIES >PARTICLE DISTRIBUTION FUNCTIONS    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ENERGETIC PARTICLE PROPERTIES >PARTICLE SPEED    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ENERGETIC PARTICLE FLUX >PROTON FLUX    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ACTIVITY >SOLAR FLARES    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION


Platform
ACE >Advanced Composition Explorer (ACE)    [Information]


Instrument
SEPICA >Solar Energetic Particle Charge Analyzer    [Information]


Project
ACE >Advanced Composition Explorer (ACE) Project    [Information]


Keywords
solar energetic particles
charged particles
ions
flux
He
Fe
C
Si
Ne
Mg
cosmic rays


Data Set Progress
IN WORK


Originating Center
CALTECH


Data Center
Advanced Composition Explorer, Space Radiation Laboratory, California Institute of Technology    [Information]
Data Center URL: http://www.srl.caltech.edu/ACE/

Data Center Personnel
Name: DR. ANDREW DAVIS
Email: ad at srl.caltech.edu
Contact Address:
ACE Science Center
Morrisroe Astroscience Laboratory
Mail Code 220-22
California Institute of Technology
City: Pasadena
Province or State: CA
Postal Code: 91125
Country: USA



Distribution
Distribution_Media: online www
Fees: none


Publications/References
See:
http://www.srl.caltech.edu/ACE/

for a list of ACE publications.

Creation and Review Dates
DIF Creation Date: 2004-11-30
Last DIF Revision Date: 2016-01-27



Link to Web Site