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STPSat-1 SHIMMER OH Data
var authors='Englert, Christoph';
document.write(authors);
(2025).
STPSat-1 SHIMMER OH Data.
[Data set].
Space Physics Data Facility.
https://doi.org/10.48322/7s4h-ta58. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/STPSat1/SHIMMER/OH/P1D
Description
This dataset contains daily averaged mesospheric hydroxyl, OH, radiance profiles of solar resonance fluorescence measured near 309 nm by the Spatial Heterodyne Imager for MEsospheric Radicals, SHIMMER, onboard STPSat-1. OH data were obtained by imaging the limb every 20 s between 58°N and 58°S. These radiance profiles were inverted to retrieve daily averaged mesospheric OH densities between 60 and 90 km in 2 km increments. A total of 1816 OH profiles are available, 881 from the ascending, A, portion of the orbit and 935 from the descending, D, portion of the orbit. Because the satellite is moving eastward at latitudes between 50°N and 58°N, the profiles from the A portion are about 3 hours earlier in local solar time than the D portion in this latitude band. The OH number density profile data are stored in directories for the tropics, 0_to_15N, and for the mid-latitudes, 50N_to_58N. See SHIMMER Data Manual for a list of missing days. They are available in ASCII format in five columns:
* Altitude
* OH densities
* Uncertainty in the OH densities, 1 σ
* OH radiances (uninverted intensities along the line of sight)
* Uncertainty in the OH radiances.
In addition, there are "showstat" summary plots stoe\red in postscript files with relevant viewing conditions for each of the six data periods (either tropics or mid-latitudes for each of the three years). Each of the figures has 6 panels that include:
* Number of spectra obtained on each day
* Solar Zenith Angle, SZA
* Solar Scattering Angle, SSA
* Latitude of the limb tangent point
* Local Solar Time, LST, at the tangent point
* Altitude range of the limb observation
The altitude range of the limb observation nominally spans from 35 kam to 100 km, though on occasion it can be as high as from 65 kam to 130 km.
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
NumericalData
ResourceID
spase://NASA/NumericalData/STPSat1/SHIMMER/OH/P1D
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
STPSat-1 SHIMMER OH Data
DOI
https://doi.org/10.48322/7s4h-ta58
ReleaseDate
2026-02-16 14:46:10Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:15:23
Note
Only known prior metadata Release Date
RevisionEvent
ReleaseDate
2022-05-25 12:34:56.789
Note
Updated to SPASE Version 2.4.0, replace apostrophes, no-break space and other spurious text, metadata revised by LFB
RevisionEvent
ReleaseDate
2025-11-14 16:02:55Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:31:41Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-02-16 14:46:10Z
Note
Added DOI. TLK
Description
This dataset contains daily averaged mesospheric hydroxyl, OH, radiance profiles of solar resonance fluorescence measured near 309 nm by the Spatial Heterodyne Imager for MEsospheric Radicals, SHIMMER, onboard STPSat-1. OH data were obtained by imaging the limb every 20 s between 58°N and 58°S. These radiance profiles were inverted to retrieve daily averaged mesospheric OH densities between 60 and 90 km in 2 km increments. A total of 1816 OH profiles are available, 881 from the ascending, A, portion of the orbit and 935 from the descending, D, portion of the orbit. Because the satellite is moving eastward at latitudes between 50°N and 58°N, the profiles from the A portion are about 3 hours earlier in local solar time than the D portion in this latitude band. The OH number density profile data are stored in directories for the tropics, 0_to_15N, and for the mid-latitudes, 50N_to_58N. See SHIMMER Data Manual for a list of missing days. They are available in ASCII format in five columns:
* Altitude
* OH densities
* Uncertainty in the OH densities, 1 σ
* OH radiances (uninverted intensities along the line of sight)
* Uncertainty in the OH radiances.
In addition, there are "showstat" summary plots stoe\red in postscript files with relevant viewing conditions for each of the six data periods (either tropics or mid-latitudes for each of the three years). Each of the figures has 6 panels that include:
* Number of spectra obtained on each day
* Solar Zenith Angle, SZA
* Solar Scattering Angle, SSA
* Latitude of the limb tangent point
* Local Solar Time, LST, at the tangent point
* Altitude range of the limb observation
The altitude range of the limb observation nominally spans from 35 kam to 100 km, though on occasion it can be as high as from 65 kam to 130 km.
PublicationInfo
Authors
Englert, Christoph
PublicationDate
2025-11-14 16:02:55Z
PublishedBy
Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Christoph.Englert
2.
MetadataContact
spase://SMWG/Person/David.E.Siskind
3.
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
Users Guide to Data from the Spatial Heterodyne Imager for MEsospheric Radicals, SHIMMER
URL
https://spdf.gsfc.nasa.gov/pub/data/shimmer/shimmer_data_manual.pdf
PriorIDs
spase://VSPO/NumericalData/STPSat1/SHIMMER/OH/PT1D
spase://NASA/NumericalData/STPSat1/SHIMMER/OH/PT1D
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/shimmer/oh_data/
Description
In ASCII via ftp at SPDF
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/shimmer/oh_data/
Description
In ASCII via HTTP at SPDF
Format
Text
Acknowledgement
Please acknowledge the PI and NASA GSFC SPDF.
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/STPSat1/SHIMMER
MeasurementType
Radiance
TemporalDescription
TimeSpan
StartDate
2007-04-05 00:00:00
StopDate
2009-09-24 00:00:00
Cadence
PT24H
ObservedRegion
Earth.NearSurface.Mesosphere