18 November 2004AstroGrid Solar Movie Maker VOTechKick-off VOTech Kick-off Meeting AstroGrid Solar Movie Maker Deploying SolarSoft IDL tools with CEA Elizabeth Auden & Silvia Dalla 18 November 2004 (Animated GIF of solar movie)

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off AstroGrid Solar Movie Maker Accessing TRACE data and SolarSoft data reduction Generating solar MPEGs Deploying IDL as a CEA grid tool Example: Creating a solar movie with AstroGrid

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off TRACE Data TRACE files are presented to the movie maker tool as a series of URLs inside a VOTable. CEA downloads the URLs as temporary files local to the movie maker tool.

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off SolarSoft TRACE Analysis

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off MPEG Generation One MPEG per hourly TRACE file is generated with IDL: 1.Mpeg_open 2.Mpeg_put 3.Mpeg_save 4.Mpeg_close MPEG generation is tightly controlled (by Elizabeth!), so rate, image size, and encoding type are known to be identical. MPEGs from multiple hourly TRACE files are put together using simple Unix concatenation facility.

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off CallMakeMPEGFitsImages tool So, what’s under the hood? 1.Input: output filename, name(s) of 1 or more hourly TRACE files 2.Confirm that all input files are valid hourly TRACE files 3.Loop through TRACE files: a. Reduce data with SolarSoft TRACE tools b. Generate MPEG with IDL MPEG encoding 4. Concatenate all hourly MPEGs into one movie 5. Output: one MPEG solar movie written to MySpace

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off CEA Interface: Unix shell script IDL – what we didn’t use: Ion / IonScript - required extra licensing RPCs - vetoed by MSSL system administrator IDL VM - code restrictions, obnoxious splash screen Interactive routines – no dialog boxes or other GUIs MPEG generation is tightly controlled (by Elizabeth!), so rate, image size, and encoding type are known to be identical. MPEGs from multiple hourly TRACE files are put together using simple Unix concatenation facility. Solution: shell script to generate IDL SolarSoft session, execute IDL data reduction and MPEG encoding, and concatenate MPEGs.

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off Configuration of Tool with CEA Deploy local installation of CEA with maven Configure a $work.dir directory containing tool files Fill in AstroGrid CEA registry template: Provide tool name and other curation information Declare AstroGrid AuthorityID Locate MySpace (remote or local) Specify input(s) and output(s) – data / file type, number, syntax, etc Use maven to finish setup, configuration, and AstroGrid update If all goes according to plan, tool name appears in AstroGrid portal workflow dropdown menu.

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off Example: TRACE data search (screen shot of AG portal TRACE data search)

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off Example: Solar Movie Workflow (screen shot of AG portal movie maker workflow)

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off Example: Movie Maker result (screen shot of AG portal showing movie in MySpace explorer; play movie)

18 November 2004AstroGrid Solar Movie Maker VOTechKick-off Future Work Movie Maker tool enhancement: Accommodate data from TRACE, SOHO-CDS, SOHO-EIT, Yohkoh, etc. Include derotation algorithm to account for Sun’s rotation during movie Allow overlay of 2 or more images displaying different wavelengths / magnetic observation in each frame. Use coordinate and pointing information to ensure spatial alignment of images Development of further tools: Collaboration between Silvia (IDL code) and Elizabeth (CEA configuration) on new solar AstroGrid tools Possible new tools: a simple movie maker, data reduction tool, multiple wavelength / magnetic / white light overlay image tool