Extreme Ultraviolet (EUV) Spectroheliograph and Spectrograph Images from the Skylab Apollo Telescope Mount (ATM)
Skylab Solar
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.
Dataset Citation
- 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].
Dataset Identifiers
- NCEI DSI 4006_01
- gov.noaa.ncdc:C01592
- gov.noaa.ngdc:G10136
ISO 19115-2 Metadata
gov.noaa.ncdc:C01592
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Customer Engagement Branch NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov |
Coverage Description | Non-geographic dataset |
Time Period | 1973-05-25 to 1974-02-08 |
Spatial Bounding Box Coordinates | Non-geographic dataset |
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Data Presentation Form | Digital image |
Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Not planned |
Supplemental Information | 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. |
Purpose | This dataset is available to scientific researchers for studying the Sun’s chromosphere, transition region and inner corona. |
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Global Change Master Directory (GCMD) Science Keywords
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Lineage 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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Last Modified: 2023-06-23
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov