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Welcome to the 

Cluster EFW Data Page

EFW is the Electric Fields and Waves instrument on each of the four Cluster satellites. The main source for EFW data for scientific analysis is the Cluster Active Archive (CAA).

• EFW CAA User's Guide

EFW CAA summary plots

Summary plots used for validation of EFW data for the Cluster Active Archive (CAA). Contains 3-hour plots of electric field spectra, spacecraft potential and spin resolution electric field, as well as combined monthly multipage PDF files with specta.
View Summary Plots by clicking a year on the left side of this web page.

EFW data sets

Data set	EFW data	Access	Where	Comments
CAA	V_ps, E, sigma	Open, registration required	http://caa.estec.esa.int	Full resolution high quality data. This is the recommended way of accessing EFW data.
CAA Summary Plots	V_ps, E, spectra	Open, no registration	http://www.cluster.irfu.se/efw/data/caa-splots/	3-hour plots of E-field spectra, Vps and spin resolution electric field.
CSDS Quicklook	V_ps (2 s/c)	Open, no registration	http://www.cluster.rl.ac.uk/csdsweb-cgi/csdsweb_pick	Plots appears here within hours. For EFW, only Vps is plotted. Useful for event detection.
CSDS summary parameters	E_dusk V_ps sigma status (1 s/c)	Open, no registration	Your nearest CSDS data centre -- find it at http://sci2.estec.esa.nl/cluster/csds/world_sites.html	One-minute time resolution data from one s/c. For event detection.
CSDS prime parameters	E_dusk V_ps sigma status (4 s/c)	Open (since 2008)	Your nearest CSDS data centre -- find it at http://sci2.estec.esa.nl/cluster/csds/world_sites.html	Spin resolution data from all four s/c. For event detection.
EFW spinfit archive	E_dusk E_sun V_ps sigma (4 s/c)	Superseded by CAA	Superseded by CAA: Data: http://caa.estec.esa.int Plots: http://www.cluster.irfu.se/efw/data/caa-splots/	Spin resolution. For event detection and limited science analysis.
EFW raw data	All	CoIs and Associates	Access to DDS or CD-ROM data using the WEC Isdat system.	The basis for all other data sets.

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Page maintained by Anders Eriksson