1. BTC/PCT 2009-05-19 1 FEATURE Overview & Update Brian Carcich Peter Thomas Cornell University Based on CIRCLE.PRO by Ernest Bowman-Cisneros

2. BTC/PCT 2009-05-19 2 FEATURE Agenda Why FEATURE? Status of FEATURE What FEATURE does (demo) FEATURE output, input, environment How FEATURE models data –Geometry; Shape; SPICE Kernels Issues of note, To Do VRML Tool (demo) Backup slides

3. BTC/PCT 2009-05-19 3 Why FEATURE? Mapping, note taking, simple measures Points: locations, density distribution Lines: sizes and azimuths Circles: sizes and density distribution

4. BTC/PCT 2009-05-19 4 Status – Since Nov, 2008 Done –Successfully used flight test data! –LRO/generic TDI/Line imager intersection framework –Site-independent SPICE kernel management EKKM not site-independent, but close enough –Hi-resolution lunar rotation model Generic shape model interface: user supplies model –Read PDS subwindows Postponed/obsolete: use pds2isis –Developed VRML tool

5. BTC/PCT 2009-05-19 5 What FEATURE does Locate, identify & record surface FEATUREs Locate –Line, Sample –Latitude, Longitude Identify –Points: PRFs; &c. –Lines: Grooves; ridges; &c. –Circles: Craters; &c. –Assign comments, IDs Record –Flat ASCII format One line/feature

6. BTC/PCT 2009-05-19 6 FEATURE Output: Sample record file VERSION 1 9 311.66 29907.18 -999.00 -999.00 -999.00 -999.00 -999.000 -999.00 -999.00 -999.000 50000 5000 m00725569 PRF 536.29 29782.81 12.84 -999.00 -999.00 -999.00 -999.000 -999.00 -999.00 -999.000 50000 5000 m00725569 Crater 87.15 29872.54 23.12 -999.00 -999.00 -999.00 -999.000 -999.00 -999.00 -999.000 50000 5000 m00725569 Crater 312.40 29841.20 21.84 -999.00 -999.00 -999.00 -999.000 -999.00 -999.00 -999.000 50000 5000 m00725569 Crater 175.00 29767.00 170.00 29837.00 -999.00 -999.00 -999.000 -999.00 -999.00 -999.000 50000 5000 m00725569 Ridge 547.00 28434.00 847.00 28501.00 -999.00 -999.00 -999.000 -999.00 -999.00 -999.000 50000 5000 m00725569 Ridge 1.Feature:S1,L1 (Center if circle) 2.Feature:S2,L2 (line) or Radius,-999 (circle) or -999,-999 3.Feature:Lat,Long,Radius of S1,L1 4.Feature:Lat,Long,Radius of S1,L1 (line) or -999,-999 5.Image:NL, NS 6.Image:filename prefix 7.Feature:User comment, ID

7. BTC/PCT 2009-05-19 7 FEATURE Input Local IsisCube: PDS EDR=>[pds2isis] –Alternative: SOC Server proposal; see backup slides Lunar shape model –Radius map; FITS file w/specific keywords SPICE kernels –Mirror of SOC directory hierarchy –Two FEATURE-specific meta-kernels Requires Minimal localization to text file –Scripts exist to automate update

8. BTC/PCT 2009-05-19 8 FEATURE Environment Linux –Eunuchs™, OSX, Windows/Cygwin should also work IDL (V5+?) with GUI –GSFC Astron library (FITS) –Misc Cornell IDL utilities ISIS –Pds2isis Replace with web application? –IsisDlm –3 rd -party libraries Carcich time

9. BTC/PCT 2009-05-19 9 How FEATURE models data

10. BTC/PCT 2009-05-19 10 How: Geometry Model ∙

11. BTC/PCT 2009-05-19 11 How: Shape Model description Image [line,samp] to [latitude,long.] Local image: PDS => [pds2isis] => IsisCube Geometry(t) TDI model from image header info  Pixel line,sample in image …  time of pixel exposure … t = A + B x line + C x samp A, B from image header; C=0 for LROC  SPICE lookup F(t,sample,SCLK,SPK,CK,FK,IK) …  Body-fixed image- & pixel-specific ray …  DEM shape intersection …  Selenocentric latitude & longitude

12. BTC/PCT 2009-05-19 12 How: Shape Model Generic user-supplied DEM (FITS file) –Mapping info in FITS header –Moon: CLEM. Data Delta from spheroid (R eq = 1738km; ƒ = 1/3234.93) 4 pixel/deg (~8km/pixel) PDS CLEM1-L-LIDAR-5-TOPO-V1.0 data set

13. BTC/PCT 2009-05-19 13 How – SPICE Kernel Management “The Achilles heel of SPICE is kernel management” You can try this at home –Scripts mirror LROC SOC SPICE kernel directories –EKKM: E-Kernel Kernel Management E-Kernel: portable database w/SPICE toolkit I/F Loads only the necessary kernels –Object interface for IDL IDL> ekkm = newekkm(‘lro.ek’) IDL> ekkm->FindByTime,START_TIME,STOP_TIME IDL> delekkm,ekkm ∙

14. BTC/PCT 2009-05-19 14 Issues of note Flight-quality Kernels (FK, IK): TBD –AI: Project ISIS IDL DLM: 32kLine limitation –AI: USGS/ISIS/KBecker Moon reference frame for shape model –IAU_MOON, MOON_PA, MOON_ME

15. BTC/PCT 2009-05-19 15 FEATURE TODO ISIS DLM to handle > 32k lines (USGS/KBecker) Continue documentation: installation; use; tutorial Port/install to volunteers’ environments Port new framework back to MRO Flight-quality Frames kernels (Project)

16. BTC/PCT 2009-05-19 16 VRML Visualization Tool ∙

17. BTC/PCT 2009-05-19 17 VRML Visualization Tool (cont’d) ∙

18. BTC/PCT 2009-05-19 18 Backup slides (details) Status – Done How - Code Where Who & When SOC Server proposal

19. BTC/PCT 2009-05-19 19 Backup slides (details) Status – Done How - Code Where Who & When SOC Server proposal

20. BTC/PCT 2009-05-19 20 Status - Done Week ending 2008-11-07 –Create & use subwindow object –Read ISIS cubes & subwindows –Read ddd subwindows

21. BTC/PCT 2009-05-19 21 How - Code IDL –Based on EBC CIRCLE.PRO –ICY SPICE/IDL interface (DLM) –READ_ANY_IMAGE.PRO Custom code; extends IDL’s QUERY_*, READ_* FITS via GSFC Astron library PDS via custom code IsisCube via ISIS DLM DDD via custom reader Recent sub-window object/reader for performance –DDD, IsisCube working –PDS future

22. BTC/PCT 2009-05-19 22 Where Bodies (for line,samp=>Lat,Long) –Mars –Moon –TDI/Line CCD extendible to any near-sphere Missions (for line,samp=>Lat,Long) –MRO –LRO (CUB only) Development –Cornell

23. BTC/PCT 2009-05-19 23 Who & When EBC CIRCLE.PRO ca 2002? PCT Updated specs (point, line, circle) ca 2006 –pthomas@astro.cornell.edu BTC CIRCLE.PRO => FEATURE.PRO ca 2006 –ddd, MRO line,sample=>Lat,Long November, 2007, updated July, 2008 –IsisCube, LRO line,samp=>Lat,Long May, 2009 –carcich@astro.cornell.edu

24. BTC/PCT 2009-05-19 24 SOC Server Proposal Problem: large files copied to local disk Need image + ancillary data –Header info, SPICE/geometry Deliver subwindows a la JPEG2000/JPIP Pros –JIT delivery of desired image data –Could eliminate stale local files Cons –Network dependency (availability, performance)