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TWINS-1 Energetic Neutral Atom (ENA) Imager

ResourceID
spase://SMWG/Instrument/TWINS1/ENA

Description

TWINS (Two Wide-angle Imaging Neutral-atom Spectrometers) is a Mission of Opportunity under NASA's Small Explorer (SMEX) program. TWINS-1 and TWINS-2 are the designations for NASA-sponsored instruments flying on unspecified non-NASA U.S. government spacecraft.The TWINS-1 instrument high voltages were turned on in April 2007 and the TWINS-2 high voltages in May 2008; the exact launchdates are not available. The data (including both science data and spacecraft ephemeris/attitude information) from the two NASA-funded science instruments are publicly available to the scientific research community. TWINS instrumentation includes an energetic neutral atom (ENA) imager to capture charge-exchange-produced neutral atoms over a broad energy range (approximately 1-100 keV) and a Lyman-alpha detector to measure the density of the neutral hydrogen geocorona needed for extraction of magnetospheric ion fluxes from neutral atom data. The TWINS-1 and TWINS-2 instruments are identical.

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Details

Version:2.4.0

Instrument

ResourceID
spase://SMWG/Instrument/TWINS1/ENA
ResourceHeader
ResourceName
TWINS-1 Energetic Neutral Atom (ENA) Imager
AlternateName
TWINS-1 Neutral-atom Spectrometer
AlternateName
TWINS-1 Wide-angle Imaging Neutral-atom Spectrometer
ReleaseDate
2022-02-20 12:34:56.789
RevisionHistory
RevisionEvent
ReleaseDate
2022-02-20 12:34:56.789
Note
Assorted Observatories and Instruments: Files reformated. Metadata submitted by J.M. Weygand on 2021-11-16, reviewed by LFB
Description

TWINS (Two Wide-angle Imaging Neutral-atom Spectrometers) is a Mission of Opportunity under NASA's Small Explorer (SMEX) program. TWINS-1 and TWINS-2 are the designations for NASA-sponsored instruments flying on unspecified non-NASA U.S. government spacecraft.The TWINS-1 instrument high voltages were turned on in April 2007 and the TWINS-2 high voltages in May 2008; the exact launchdates are not available. The data (including both science data and spacecraft ephemeris/attitude information) from the two NASA-funded science instruments are publicly available to the scientific research community. TWINS instrumentation includes an energetic neutral atom (ENA) imager to capture charge-exchange-produced neutral atoms over a broad energy range (approximately 1-100 keV) and a Lyman-alpha detector to measure the density of the neutral hydrogen geocorona needed for extraction of magnetospheric ion fluxes from neutral atom data. The TWINS-1 and TWINS-2 instruments are identical.

Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/David.J.McComas
2.MetadataContactspase://SMWG/Person/James.M.Weygand
3.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
NASA Master Catalog TWINS ENA instrument
URL
Description

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PriorIDs
spase://SMWG/Instrument/TWINS1/Imager
InstrumentType
Imager
InvestigationName
Energetic Neutral Atom Imager (ENA) on TWINS-1
ObservatoryID