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Extreme Ultraviolet (EUV) Spectroheliograph and Spectrograph Images from the Skylab Apollo Telescope Mount (ATM)


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    dateStamp:  2023-06-23
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        citation:  (CI_Citation)
            title:  Extreme Ultraviolet (EUV) Spectroheliograph and Spectrograph Images from the Skylab Apollo Telescope Mount (ATM)
            alternateTitle:  Skylab Solar
            date:  (CI_Date)
                date:  2008
                dateType:  (CI_DateTypeCode) publication
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                code:  NCEI DSI 4006_01
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                code:  gov.noaa.ncdc:C01592
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                code:  gov.noaa.ngdc:G10136
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        abstract:  The U.S. Naval Research Laboratory developed Extreme Ultraviolet (EUV) spectroscopic experiments flown on the NASA Skylab manned space station to study the Sun’s chromosphere, transition region and inner corona. The data include measurements of spectra from specific solar activity regions on photographic film taken by the S082A Spectroheliograph and the S082B Spectrograph instruments that were part of the Apollo Telescope Mount (ATM) Experiments aboard Skylab during three mission periods in 1973 and 1974. The original analog film data, housed at the U.S. Naval Research Laboratory, was comprised of 35 mm film strips mounted between glass plates. The entire collection consisted of 800 plates with eight spectra per plate. The individual spectra were scanned to a 24-bit (three color) resolution TIFF image before being submitted to the NOAA National Geophysical Data Center (NGDC) in December 2007. Documentation for each spectrum derived from 16 data books were also scanned and provided as PDFs.
        purpose:  This dataset is available to scientific researchers for studying the Sun’s chromosphere, transition region and inner corona.
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                    deliveryPoint:  Veach-Baley Federal Building, Room 468
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            fileName: https://www.ncei.noaa.gov/pub/data/metadata/images/C01592_skylab.jpg
            fileDescription:  Extreme Ultraviolet Spectrograph ATM Experiment S082B.
            fileType:  JPEG
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Earth Science > Spectral/Engineering > Ultraviolet Wavelengths
            keyword:  Earth Science > Sun-Earth Interactions > Solar Activity > Solar Ultraviolet Emissions
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            keyword:  Space > Solar Region > Chromosphere
            keyword:  Space > Solar Region > Corona
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            keyword:  Solar/Space Observing Instruments > Photon/Optical Detectors > Cameras > Spectroheliographs
            keyword:  Solar/Space Observing Instruments > Ultraviolet Instruments > EGS > EUV Grating Spectrograph
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            otherConstraints:  Cite as: U.S. Naval Research Laboratory. (2008): Extreme Ultraviolet (EUV) Spectroheliograph and Spectrograph Images from the Skylab Apollo Telescope Mount (ATM). [indicate subset used]. NOAA National Centers for Environmental Information. NCEI DSI 4006_01. Accessed [date].
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            otherConstraints:  Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
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        language:  eng; USA
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                extent:
                  TimePeriod:
                    description:  ground condition
                    beginPosition:  1973-05-25
                    endPosition:  1974-02-08
        supplementalInformation:  Filename Patterns: nrl_[M][I][NNN]_[XXX].tif.gz AND nrl_[M][I][NNN].tif.gz Filename Fields: nrl = U.S. Naval Research Laboratory (originator) [M] = Skylab manned mission identifier (1, 2 or 3), where: "1" is for SL-2 (Skylab 2) "2" is for SL-3 (Skylab 3) "3" is for SL-4 (Skylab 4) [I] = Instrument identifier (A or B), where: "A" is for S082A Spectroheliograph "B" is for S082B Spectrograph [NNN] = Frame number for the particular camera used during that mission by that instrument (3 digits) [XXX] = Exposure number (8 per film strip) (2 or 3 digits) .tif = TIFF file format extension .gz = GNU zip compression NOTE: The combination of the above fields forms the identification of the glass plate with film as assigned by NRL.
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                fees:  In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
                orderingInstructions:  Contact NCEI for other distribution options and instructions.
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            statement:  This dataset was created by the The U.S. Naval Research Laboratory, and is archived at the NOAA National Centers for Environmental Information.
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                description:  The original 35 mm film strips mounted in glass plates were scanned to 24-bit (three color) resolution TIFF images before being submitted to NOAA.
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                description:  NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
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        maintenanceNote:  Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.