gov.noaa.ngdc.sem:goes_sxi_g02157 National Oceanic and Atmospheric Administration (NOAA) National Weather Service (NWS) National Centers for Environmental Prediciton (NCEP) Space Weather Prediction Center (SWPC) 20010907 Solar X-Ray Imager Archive Solar X-Ray Imager Archive http://sxi.ngdc.noaa.gov http://sxi.ngdc.noaa.gov GOES Solar X-Ray Imager More Information on GOES Solar X-Ray Imager information http://sxi.ngdc.noaa.gov GOES Solar X-Ray Imager Search the GOES-12 archive for images search The GOES Solar X-ray Imager is integrated into the GOES-12 satellite, whose primary mission is to provide Earth-weather monitoring. The SXI is operated by NOAA's National Environmental Satellite, Data, and Information Service (NESDIS). NOAA's Space Environment Center (SEC) receives the telemetry stream directly from SXI, processes the data, and integrates the observations into their space weather alert and forecast services. The data are sent in real time to NOAA's National Geophysical Data Center (NGDC) where they are immediately made available to the public, and preserved in a secure archive for future research.SXi was launched in with GOES-M on Juy 23, 2001 Post Launch Test data were available from August - December 2001.SXI officially entered operations in April 2003. The Solar X-ray Imager (SXI) is used to determine when to issue forecasts and alerts of 'space weather' conditions that may interfere with ground and space systems. These conditions include ionospheric changes that affect radiocommunication (both ground-to-ground and satellite-to-ground) and magnetospheric variations that induce currents in electric power grids and long distance pipelines and can cause navigational errors in magnetic guidance systems, introduce changes in spacecraft charging, produce high energy particles that can cause single event upsets in satellite circuitry, and expose astronauts to increased radiation. SXI will observe solar flares, solar active regions, coronal holes, and coronal mass ejections. Images from SXI will be used by NOAA andU.S. Air Force forecasters to monitor solar conditions that affect space weather conditions that are used to describe the dynamic environment of energetic particles, solar wind streams, and coronal mass ejections emanating from the Sun. The SXI, performing as a part of the Space Environment Monitor (SEM)instruments, provides the means for obtaining the solar data required to: Locate coronal holes for predicting high speed solar wind streams causing recurrent geomagnetic storms, and also locate transient coronal holes as a source of ejecta.Locate flares on the disk and beyond the west limb for proton event warnings. Monitor for changes indicating coronal mass ejections (CME) that may impact Earth and cause geomagnetic storms. Large-scale, long duration, possible weakly emitting events, and brightening of coronal filament arcades are usedas evidence of CMEs.Observe active region size morphology and complexity, and temperature and emissions measure, for flare forecasts. Monitor for active regions beyond eastlimb that will be rotating onto the solar disk.Other solar feature observations include flare properties, newly emerging active regions, X-ray bright points, and following CME ejecta at 1000 km/sec. To meet these objectives, the SXI images the solar corona in the soft X-ray to extreme ultraviolet (XUV) region of the electromagnetic spectrum. Full-disk solar images are provided with a 512 X 512 array with 5 arcsec pixels in several wavelength bands from 6 to 60 E (0.6 to 6 nm). A regular sequence of exposures that are downlinked at one-minute intervals is used to cover the full dynamic range needed to monitor solar activity. The SXI telescope is mounted on the X-ray Positioner (XRP), and its associated electronics boxes are on the solar array yoke of the GOES-M spacecraft. The SXI is Government-furnished equipment. http://sxi.ngdc.noaa.gov 20010825 Present current In work As Needed -180 180 90 -90 NASA/GCMD Earth Science Keywords EARTH SCIENCE > Solar-terrestrial Interactions > Solar Activity > Corona Holes EARTH SCIENCE > Solar-terrestrial Interactions > Solar Activity > Solar Flares EARTH SCIENCE > Solar-terrestrial Interactions > Solar Activity > Solar Imagery EARTH SCIENCE > Solar-terrestrial Interactions > Solar Activity > Solar X-rays ISO 19115 Topic Category environment geoscientificInformation NASA/GCMD Data Center Keywords WDC/STP, BOULDER > World Data Center for Solar-Terrestrial Physics, Boulder DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce none Credit citation to NOAA requested. Data are quality checked for reasonable values based on known solar spectral output. Statistics on saturated and bad pixels are recorded in the header for each image. SXI data collection is in ongoing. Gaps in the data can be determined by using the online data summary function. Solar X-Ray Imager is flown on GOES-12 which was funded by NOAA/NESDIS.Data are received and processed by NOAA/Space Environment Center. 20010825 Solar X-Ray Imager Archive Solar X-Ray Imager Archive National Geophysical Data Center Boulder, Colorado http://sxi.ngdc.noaa.gov http://sxi.ngdc.noaa.gov http://sxi.ngdc.noaa.gov GOES Solar X-Ray Imager Information on the GOES Solar X-Ray Imager information http://sxi.ngdc.noaa.gov GOES Solar X-Ray Imager Search the GOES-12 archive for images search FTP 2001 Observed none Source imagery is generated by the Solar X-ray Imager SXI data are acquired from the Space Environment Center. SEC downloads the raw telemetry data from GOES-12, and converts them to Flexible Image Transport System (FITS) image files. 20010907 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Daniel C. Wilkinson Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC2 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6137 (303) 497-6958 (303) 497-6513 Daniel.C.Wilkinson@noaa.gov 7:30 - 5:00 Mountain Contact Data Center Downloadable Data While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data. Flexible Image Transport System (FITS) NOST 100-2.0 http://heasarc.gsfc.nasa.gov/docs/heasarc/fits.html http://sxi.ngdc.noaa.gov http://sxi.ngdc.noaa.gov GOES Solar X-Ray Imager More Information on GOES Solar X-Ray Imager information No charge for automated online delivery. Custom, and offline requests, require prepayment. Fees vary based on size and complexity. Visit the SXI website at NGDC, select and retrieve data volumes less than 500 MB via the Search option. Contact Dan Wilkinson at dcw@noaa.gov or 303-497-6137 to order data offline via CD or DVD. Online orders are turned around in less than 30 minutes. Offline orders turnaround time will depend on the order size. Minimum turnaround is three days. 20110819 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Daniel C. Wilkinson Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC2 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6137 (303) 497-6958 (303) 497-6513 Daniel.C.Wilkinson@noaa.gov 7:30 - 5:00 Mountain Contact Data Center Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002 http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html NGDC Extensions to FGDC Metadata