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GONG

GONG. NSO staff meeting Dec. 15, 2005. Science from continuous local helioseismology – Ring Diagrams. Localized frequency shifts from 37 CRs Rachel Howe. Meridional & zonal flows from 44 CRs North: black, South: grey Rudi Komm, Amel Zaatri.

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GONG

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  1. GONG NSO staff meeting Dec. 15, 2005

  2. Science from continuous local helioseismology – Ring Diagrams Localized frequency shifts from 37 CRs Rachel Howe Meridional & zonal flows from 44 CRs North: black, South: grey Rudi Komm, Amel Zaatri

  3. Science from continuous local helioseismologyTime-Distance Latitude (Degrees) Meridional travel time differences – 90 GM -- Shukur Kholikov, John Leibacher Lifetimes – Olga Burtseva, Dean-Yi Chou, Sasha Serebriansky

  4. Science from continuous global helioseismology Phase & amplitude of 11 yr sinusoid fit to torsional oscillation (Rachel Howe) MDI OLA Frequencies from 9d time series (Sushant Tripathy, Kiran Jain & John Leibacher) MDI RLS GONG RLS

  5. AR 10069 Vorticity below strong flare producers Rudi Komm, Douglas Mason AR 10486

  6. 8/29/05 AR10808 8/30/05 8/31/05 9/01/05 9/02/05 9/03/05 Farside imagesof AR10808 Irene González-Hernández, Charlie Lindsey, Doug Braun, John Bolding, Cliff Toner, John Leibacher

  7. Future science • First solar cycle will be completed in 2006 • What are flow characteristics of ascending vs descending phase? • Space weather • Develop quick look flow maps & helicity activity indicators • Calibrate far side signal, search for activity thresholds • ESA Solar Orbiter participation • Combine local helio products with high-latitude data • Probe flows under the poles • Irene González-Hernández lead • SDO/HMI Co-Is • Install rings and inversion pipelines with community • HELAS participation • European Network in Helio- and Asteroseismology

  8. Modulator upgrade • New driver circuit • Original driver has asymmetric switching time in and out of a retardation state • New driver has equal switching time • Improves magnetogram zero-point by factor of 30, down to 0.1 G • New modulators • Thermally stabilized • Excellent optical quality • Deployment • Scheduled for Feb-Mar 2006 • In time for April 2006 STEREO Launch

  9. Sometimes it gets better when you stare at it… George Luis, Tim Purdy, Mike Soukup, Jack Harvey

  10. Magnetograms Jack Harvey, Gordon Petrie, Richard Clark, Cliff Toner, Harry Jones Original modulator & circuit New modulator & circuit Mauna Loa 200511110200

  11. New shelters & instrument • Learmonth shelter • Finished (Jim Mason & Terry Bender) • To be shipped in January, installed in May 2006 • Hot spare • Shelter finished • Instrument components being reviewed, documented, ordered, fabricated as necessary • Temporarily supporting seven NOAO ETS staff • Expect completion in FY 2007 • Located at Tucson on standby • How to operate?

  12. The new shelters

  13. Data Management & Analysis Center • Hardware • Five Linux servers • 60 TB disk (with mirroring) • Two Sun servers • LTO 180 tape library • Linux • Porting slowly underway • Precision issues • GRASP • Last monolithic release • Adopting CVS of individual major modules for more flexibility and quicker pipeline upgrades

  14. Data availability • Nearly 50 consecutive rotations of local helioseismology results • Ring diagram flow data on the web • Merged velocity images on the web • Frequencies up through end of 2004 • Farside images every 12 hours on the web • Full-disk single-site magnetograms every 20 min on the web

  15. Pipelines status • Calibration • Automated image rejection (AIR) completed • Running on single Sun server • Global p modes • Improved angular registration code (COPIPE II) • Ring diagrams • Unchanged since last year • Farside • Routinely running • Needs integration of full hemisphere analysis • Time-distance • Ready to go, installation deferred due to resource constraints • Magnetograms • High priority (modulator & STEREO Launch) • Gordon Petrie lead • Zero point correction for data from original modulator (Richard Clark) • Histogram equating for merging (Harry Jones & Cliff Toner)

  16. Major Meetings • 2005: • Boulder HAO summer school • Bob Stein tribute • 2006: • SOHO 18/GONG 2006/HELAS 1, Sheffield UK • IAU General Assembly and Joint Discussion

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