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PUNCH Level 3 Clear K-Corona Mosaic Data

(2026). PUNCH Level 3 Clear K-Corona Mosaic Data. [Data set]. Solar Data Analysis Center.

ResourceID
spase://NASA/NumericalData/PUNCH/NFI_WFI_Mosaic/Level3/CTM/PT8M

Description
PUNCH Level 3 clear K-corona science mosaic (trefoil) images in the clear polarization state. The images are background-subtracted, including F-corona and starfield subtraction, and resolved into unpolarized brightness (B) with uncertainty. This dataset is a member of the Collection of PUNCH Level-3 Science Image dataset. Per instructions from the PUNCH team, reference to the entire Collection (including the DOI, see below) should be used when this and other member datasets in the Collection are needed for citation purposes: Southwest Research Institute (2025). PUNCH NFI-WFI Level-3 Science images [Collection]. Solar Data Analysis Center. https://doi.org/10.48322/nnv7-bn21. Access date (assigned on date of landing page access).

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:2.7.2

NumericalData

ResourceID
spase://NASA/NumericalData/PUNCH/NFI_WFI_Mosaic/Level3/CTM/PT8M
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
PUNCH Level 3 Clear K-Corona Mosaic Data
ReleaseDate
2026-08-24 00:08:46Z
Description
PUNCH Level 3 clear K-corona science mosaic (trefoil) images in the clear polarization state. The images are background-subtracted, including F-corona and starfield subtraction, and resolved into unpolarized brightness (B) with uncertainty. This dataset is a member of the Collection of PUNCH Level-3 Science Image dataset. Per instructions from the PUNCH team, reference to the entire Collection (including the DOI, see below) should be used when this and other member datasets in the Collection are needed for citation purposes: Southwest Research Institute (2025). PUNCH NFI-WFI Level-3 Science images [Collection]. Solar Data Analysis Center. https://doi.org/10.48322/nnv7-bn21. Access date (assigned on date of landing page access).
PublicationInfo
Authors
Southwest Research Institute
PublicationDate
2026-04-01 00:00:00Z
PublishedBy
Solar Data Analysis Center
Contacts
Role Person StartDate StopDate Note
1. PrincipalInvestigator spase://SMWG/Person/Craig.E.DeForest
2. TeamLeader spase://SMWG/Person/J.Marcus.Hughes
3. TeamMember spase://SMWG/Person/Chris.Lowder
4. TeamMember spase://SMWG/Person/Derek.A.Lamb
5. TeamMember spase://SMWG/Person/Samuel.J.VanKooten
6. TeamMember spase://SMWG/Person/Ritesh.Patel
7. TeamMember spase://SMWG/Person/Daniel.B.Seaton

InformationURL
Name
The PUNCH Website
URL
https://punch.space.swri.edu/
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/PUNCH_NFI_WFI_Mosaic_Level3_CTM_PT8M
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
Association
AssociationID
spase://NASA/Collection/PUNCH/NFI_WFI/Level3/PT4M
AssociationType
PartOf
AccessInformation
RepositoryID
spase://SMWG/Repository/SDAC
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC-BY-4.0
RightsURI
https://spdx.org/licenses/CC-BY-4.0.html
RightsName
Creative Commons Attribution 4.0 International
Note
CC BY 4.0 is the license specified in the PUNCH FITS files
AccessURL
Name
Solar Data Analysis Center (SDAC)
URL
https://umbra.nascom.nasa.gov/punch/3/CTM/
Style
Listing
Format
FITS
Encoding
None
InstrumentIDs
spase://NASA/Instrument/PUNCH/NFI
spase://NASA/Instrument/PUNCH/WFI/1
spase://NASA/Instrument/PUNCH/WFI/2
spase://NASA/Instrument/PUNCH/WFI/3
MeasurementType
ImageIntensity
MeasurementType
Radiance
TemporalDescription
TimeSpan
StartDate
2025-06-22 00:00:29Z
RelativeStopDate
-P2M
Cadence
PT8M
ObservedRegion
Sun
ObservedRegion
Sun.Corona
InputResourceID
spase://NASA/NumericalData/PUNCH/NFI_WFI_Mosaic/Level3/CIM/PT8M
Parameter #1
Name
FITS Extension #1 Brightness
Description
Unpolarized K-corona brightness in the PUNCH Level 3 CTM composite mosaic, provided in output coordinates. The data are stored in FITS extension 1 as a 4096 x 4096 image; the FITS EXTNAME is "PRIMARY DATA ARRAY".
Units
2.009e+07 W m^-2 sr^-1
Wave
WaveType
Electromagnetic
WaveQuantity
Intensity
WavelengthRange
Low
450
High
750
Units
nm
Parameter #2
Name
FITS Extension #2 Inverse Fractional Uncertainty
Description
Inverse fractional uncertainty associated with the unpolarized K-corona brightness in the PUNCH Level 3 CTM composite mosaic. The stored value is the brightness divided by its uncertainty. The data are stored in FITS extension 2 as a 4096 x 4096 image; the FITS EXTNAME is "UNCERTAINTY ARRAY".
Units
Dimensionless
Support
Qualifier
Uncertainty
SupportQuantity
Other
NASA Insignia
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Site Editor: Rita Johnson
SPDF ROR ID
SPDF re3data ID
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Last Updated: 2026-08-24