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IAS Hinode Data WorkshopThursday 15-November-2007 The Hinode Solar Optical Telescope Data & Calibration Dr. Thomas Berger Lockheed Martin Advanced Technology.

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Presentation on theme: "IAS Hinode Data WorkshopThursday 15-November-2007 The Hinode Solar Optical Telescope Data & Calibration Dr. Thomas Berger Lockheed Martin Advanced Technology."— Presentation transcript:

1 IAS Hinode Data WorkshopThursday 15-November-2007 The Hinode Solar Optical Telescope Data & Calibration Dr. Thomas Berger Lockheed Martin Advanced Technology Center Palo Alto, CA and the SOT TEAM

2 IAS Hinode Data WorkshopThursday 15-November-2007 “What was SOT looking at on 10-Oct-2007”? * Web-based search tools: Lockheed pages: http://sot.lmsal.com/sot-data general database search page http://www.lmsal.com/solarsoft/sot_cat.html on-line SOT http://www.lmsal.com/solarsoft/hinode/level2 SP Level 1.5 file list Oslo page: http:// sdc.uio.no/search/API ISAS Japan DARTS: http://hinode.nao.ac.jp/hsc_e/darts_e.shtml http://hinode.nao.ac.jp/QLmovies/index_e.shtml * Operational Pages: SOT Timeline page: http://sot.lmsal.com/operations Hinode Operations at ISAS: http://www.isas.jaxa.jp/home/solar/hinode_op/

3 IAS Hinode Data WorkshopThursday 15-November-2007 “Where can I find observations of a sunspot at the limb”? * Web-based search tools: Lockheed “Knowledge Base: http://sot.lmsal.com/sot-data Based on “VOEvent” metadata. Still in development. ISAS Japan: http://www.isas.jaxa.jp/home/solar/hinode_op/ Go to “Monthly Events” At top of page: “HOP List” Check the HOP List for observations similar to yours. Ask the HOP contact if they got good data.

4 IAS Hinode Data WorkshopThursday 15-November-2007 FG Photometric corrections: Level-0 ⇒ Level-1 Camera readout errors: fg_shift_pix.pro Central rows of camera dropped in full-camera readout. Top columns wrapped around. Dark current and pedestal subtraction: fg_dark_sub.pro FG camera 4096 x 2048 split-frame read-out: 2048x2048 frames. Each has different pedestal. Pedestal is temperature dependent. Linear combination of camera and electronics box temperatures. Flat field correction: fg_flatfield.pro Flat fields are created by Kuhn-Lin algorithm. Currently there are flat images only for  CN 388.3 (also used for Ca II H-line images)  G-band 430.5  Blue continuum 450.5  Green continuum 555.0  Red continuum 668.4 (has bright ghost near image center)  Fe I 630.2  Na ID 589.6  Mg Ib 517.3  H-alpha 656.3 Bad camera pixel correction via map in SSWDB (not fully implemented): fg_bad_pix.pro Cosmic ray removal: sot_nospike.pro Correction for BFI/NFI plate-scale difference and image shifts: fg_reg_wave.pro Avg. Pedestal = 192Avg. Pedestal = 187 G-band 430.5 nm Flatfield

5 IAS Hinode Data WorkshopThursday 15-November-2007 FG Photometric corrections Accomplished via fg_prep.pro: berger@lmsal.com, katsukawa@naoj.ac.jp BFI simple filtergrams corrected completely NFI data products corrected: FG (simple) FGIV FGIQUV Shutterless modes still in development Call formats IDL> fg_prep, index, data, index_out, data_out, /despike IDL> fg_prep, filename_list, -1, index_out, data_out, /despike IDL> fg_prep, index, data, index_out, data_out, /despike, $ x0=256, y0=256, subimgx=768, subimgy=512 IDL> fg_prep, index, data, index_out, data_out, /despike, $ subimgx=512, subimgy=512, /center

6 IAS Hinode Data WorkshopThursday 15-November-2007 FG_PREP Applied to Ca H Full-FOV image 4096x2048 summed 2x2: 2048x1024

7 IAS Hinode Data WorkshopThursday 15-November-2007 SP Photometric corrections: Level-0 ⇒ Level-1 Camera readout errors Dark current and pedestal subtraction No shutter for SP: darks only taken before SOT door-open. Eclipses may offer more. Flat field correction FPP temperature warping Slit position during scans wanders vertically Polarimetric calibration for I, Q, U, V output Corrected by sp_prep.pro: Bruce Lites, lites@hao.ucar.edu

8 IAS Hinode Data WorkshopThursday 15-November-2007 Quiet Sun at disk center with SP

9 IAS Hinode Data WorkshopThursday 15-November-2007

10 IAS Hinode Data WorkshopThursday 15-November-2007 SP Polarimetric Inversions: Level-1 ⇒ Level-2 Milne-Eddington code: HAO, Bruce Lites SIR code: IAC, Luis Bellot-Rubio (now at THEMIS)


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