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MetadataRightsList Access
NRL SECCHI Site
STEREO SECCHI Cor2 Automated CME Catalog
var authors='E. Robbrecht, S. Patsourakos, and A. A. Vourlidas';
document.write(authors);
(2022).
STEREO SECCHI Cor2 Automated CME Catalog.
[Data set].
SECCHI, Naval Research Laboratory.
https://doi.org/10.48322/s0nk-w757. Accessed on document.write(currentDateStr);.
Note: Proper references, including
Copy BibTeX Citation
or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication.
ResourceID
spase://NASA/Catalog/STEREO/SECCHI/Cor2/CACTus
Description
Computer Aided CME Tracking, CACTus, autonomously detects coronal mass ejections, CMEs, in image sequences from LASCO or SECCHI. The output of our software is a list of events, similar to the classic catalogs, with principle angle, angular width and velocity estimation for each CME. In contrast to catalogs assembled by human operators, these CME detections by software can be faster, which is especially important in the context of space weather, and possibly also more objective, as the detection criterion is written explicitly in a program. However, the algorithm is not perfect so there are sometimes false detections.
This CME list is automatically generated. There is no human intervention or supervision at this time. Therefore we ask you to use caution when using the data for statistical purposes.
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.
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Details
Version:2.7.1
Catalog
ResourceID
spase://NASA/Catalog/STEREO/SECCHI/Cor2/CACTus
NamingAuthority
NASA
ResourceType
Catalog
ResourceHeader
ResourceName
STEREO SECCHI Cor2 Automated CME Catalog
DOI
https://doi.org/10.48322/s0nk-w757
ReleaseDate
2026-02-02 13:10:26Z
RevisionHistory
RevisionEvent
ReleaseDate
2022-02-24 12:34:56.789
Note
STEREO SECCHI: Initial SPASE XML resource description submission. Metadata submitted by A. Vourlidas on 2022-02-19, reviewed by LFB
RevisionEvent
ReleaseDate
2023-05-11 12:34:56.789
Note
Updated to SPASE Version 2.5.0 if needed, Added DOI information, JMW
RevisionEvent
ReleaseDate
2023-09-27 12:34:56.789
Note
Updated Authors. JMW
RevisionEvent
ReleaseDate
2025-10-15 18:54:06
Note
10 Parameters added by Olga Uritskaya
RevisionEvent
ReleaseDate
2026-02-02 13:10:26Z
Note
Added MetadataRightsList. Added ResourceType and NamingAuthority. Updated to 2.7.1. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. ZCB
Description
Computer Aided CME Tracking, CACTus, autonomously detects coronal mass ejections, CMEs, in image sequences from LASCO or SECCHI. The output of our software is a list of events, similar to the classic catalogs, with principle angle, angular width and velocity estimation for each CME. In contrast to catalogs assembled by human operators, these CME detections by software can be faster, which is especially important in the context of space weather, and possibly also more objective, as the detection criterion is written explicitly in a program. However, the algorithm is not perfect so there are sometimes false detections.
This CME list is automatically generated. There is no human intervention or supervision at this time. Therefore we ask you to use caution when using the data for statistical purposes.
Acknowledgement
Please note that all of the SECCHI data is free for public use, but if you use them in presentations, published work, websites, etc, please give the appropriate image credits ("STEREO/SECCHI" will usually suffice).
PublicationInfo
Authors
E. Robbrecht, S. Patsourakos, and A. A. Vourlidas
PublicationDate
2022-01-01 00:00:00
PublishedBy
SECCHI, Naval Research Laboratory
Funding
Agency
NASA
Project
STEREO
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Brian.Wood
2020-01-01T00:00:00
2.
MetadataContactProjectScientist
spase://SMWG/Person/Angelos.Vourlidas
2007-01-01T00:00:00
3.
GeneralContact
spase://SMWG/Person/William.T.Thompson
4.
TechnicalContact
spase://SMWG/Person/Lynn.Hutting
2008-02-01T00:00:00
5.
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
6.
MetadataContact
spase://SMWG/Person/Olga.Y.Uritskaya
InformationURL
Name
CACTus Algorithm Description
URL
https://iopscience.iop.org/article/10.1088/0004-637X/691/2/1222
Description
The paper describes the algorithm and its application on the SOHO LASCO C2 and C3 images but the process is essential identical for the STEREO Cor2 coronograph images. Robbrecht, E., D. Berghmans, and R.A.M. Van der Linden, Automated LASCO CME Catalog for Solar Cycle 23: Are CMEs Scale Invariant?, Astrophys. J., 691(2), 1222-1234, 2009.
Language
en
AccessInformation
RepositoryID
spase://SMWG/Repository/NRL
Availability
Online
AccessRights
Open
AccessURL
Name
NRL SECCHI Site
URL
https://secchi.nrl.navy.mil/cactus/
Language
en
Format
IDL
Format
HTML
Acknowledgement
When any of this data is used, please cite one of the following publications:
* Robbrecht E., and D. Berghmans, Automated recognition of coronal mass ejections (CMEs) in near-real-time data, Astron. Astrophys., 425(3), 1097-1106, 2004 (https://www.aanda.org/10.1051/0004-6361:20041302)
* Stenborg, G., Vourlidas, A., and R.A. Howard, A Fresh View of the Extreme-Ultraviolet Corona from the Application of a New Image-Processing Technique, Astrophys. J., 674(2), 1201, 2008 (https://iopscience.iop.org/article/10.1086/525556)
InstrumentIDs
spase://SMWG/Instrument/STEREO-A/SECCHI/Cor2
spase://SMWG/Instrument/STEREO-B/SECCHI/Cor2
PhenomenonType
CoronalMassEjection
Parameter #1
Name
CME
Description
CME: CME number
Support
SupportQuantity
Other
Parameter #2
Name
t0
Description
t0: onset time, earliest indication of liftoff
Support
SupportQuantity
Temporal
Parameter #3
Name
dt0
Description
dt0: duration of liftoff (hours)
Support
SupportQuantity
Other
Parameter #4
Name
pa
Description
pa: principal angle, counterclockwise from North (degrees)
Support
SupportQuantity
Positional
Parameter #5
Name
da
Description
da: angular width (degrees)
Support
SupportQuantity
Positional
Parameter #6
Name
v
Description
v: median velocity (km/s)
Support
SupportQuantity
Velocity
Parameter #7
Name
dv
Description
dv: variation (1 sigma) of velocity over the width of the CME
Support
SupportQuantity
Velocity
Parameter #8
Name
mindv
Description
mindv: lowest velocity detected within the CME
Support
SupportQuantity
Velocity
Parameter #9
Name
maxdv
Description
maxdv: highest velocity detected within the CME
Support
SupportQuantity
Velocity
Parameter #10
Name
halo?
Description
halo?: II if da>90, III if da>180, IV if da>270, indicating potential halo/partial halo CME
Support
SupportQuantity
Remark