ResourceName
PADRE MeDDEA Level0 Spectrum FITS
AlternateName
PADRE/MeDDEA Level0 Spectrum FITS
AlternateName
MeDDEA Level0 Spectrum FITS
DOI
https://doi.org/10.48322/431j-z147
ReleaseDate
2026-08-04 14:51:19Z
RevisionHistory
RevisionEvent
ReleaseDate
2026-06-01 00:08:46Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2026-06-26 13:25:35Z
Note
Add 'Z' to PublicationDate. Added ResourceType and NamingAuthority. Added MetadataRightsList. ZCB
RevisionEvent
ReleaseDate
2026-07-21 00:08:46Z
Note
Added Parameter descriptions for the SPEC and PKT FITS extensions. SY.
RevisionEvent
ReleaseDate
2026-07-21 12:06:13Z
Note
Added HelioData InformationURL. JWL
RevisionEvent
ReleaseDate
2026-07-28 15:31:01Z
Note
Add 'Z' to RevisionEvent:ReleaseDate(s). ZCB
RevisionEvent
ReleaseDate
2026-08-04 14:51:19Z
Note
Matched version number in schemaLocation attribute to updated value in Version tag. Added DOI. tlk
Description
PADRE MeDDEA Level0 Spectrum FITS data are uncalibrated hard X-ray spectrum data obtained by the Measuring Directivity to Determine Electron Anisotropy (MeDDEA) instrument on the Solar Polarization and Directivity X-Ray Experiment (PADRE) CubeSat observatory. The Level0 spectrum files contain the same spectrum data as the raw MeDDEA binary data, but converted to FITS format for more convenient analysis. Each raw spectrum data file generates a single Level0 spectrum FITS file. The spectrum product is provided regularly and contains summary spectra created for detector pixels at regular cadence, normally every 10 seconds, with 512 energy bins. These data support investigations of the directivity of solar flare hard X-ray emission and the angular distribution of flare-accelerated electrons.
PublicationInfo
Authors
The PADRE MeDDEA Team: NASA Goddard Space Flight Center (USA); Space Sciences Laboratory, University of California Berkeley (USA); Southwest Research Institute (USA); University of Applied Sciences and Arts Northwestern Switzerland (Switzerland); CEA-Saclay (France)
PublicationDate
2025-11-24 00:00:00Z
PublishedBy
NASA Goddard Space Flight Center, Solar Data Analysis Center (SDAC)
Contacts
InformationURL
Name
PADRE MeDDEA Data Documentation
URL
Description
Documentation describing MeDDEA data products, data levels, file naming conventions, and reading software.
InformationURL
Name
PADRE MeDDEA Level 0 Data Documentation
URL
Description
Documentation describing the organization of PADRE MeDDEA Level 0 FITS files, including photon, spectrum, and housekeeping files.
InformationURL
Name
HelioData
URL
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
Name
Photon Spectrum Data, FITS Extension 1
ParameterKey
SPEC
Description
FITS extension 1, named SPEC, contains the Level 0 photon spectrum data as a compressed three-dimensional image array. The first dimension contains 512 uncalibrated spectral channels, the second dimension contains 24 detector pixels, and the third dimension contains successive spectra acquired during the time interval covered by the file.
Wave
WaveType
Photon
WaveQuantity
Intensity
Name
Spectrum Packet Data, FITS Extension 2
ParameterKey
PKT
Description
FITS extension 2, named PKT, is a binary table containing packet-level information associated with the spectra in FITS extension 1. Each row provides the packet time, packet subsecond clock, ASIC identifiers and electronic channel numbers for the 24 detector pixels, and packet sequence number. Its columns are pkttimes, pktclock, asic, channel, and seqcount.
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