1. Mosaic code update: mapping the kronian magnetosphere
Henrik Melin
Planetary and Space Science Division
Space Environment Technologies
UVIS Team meeting 09/01/2007

2. Old and new IDL code a comparison
3367 lines of code
Fortran style interface
Every instance of a geometric setup a special case
342 lines of code
IDL style interface
Cache implementation
Generalized approach to dealing with geometry by using polygons

3. Input parameters Length of the side of the square grid
Number of grid elements
Target, e.g. ‘SATURN’
Flat-field array
Files to process
Properties of the NCDF files: time, integration time, compression etc from file header.

4. Output parameters
A data cube x, y is spatial coordinates and z is the spectral dimension

5. INITIAL RESULTS

6. Cassini pre-SOI system scans1 2 3 4

7. Reflected sunlight dataset 1

8. Reflected sunlight dataset 2

9. Reflected sunlight dataset 3

10. Reflected sunlight dataset 4

11. Lyman Alpha dataset 1

12. Lyman Alpha dataset 2

13. Lyman Alpha dataset 3

14. Lyman Alpha dataset 4

15. Oxygen (1304Å) dataset 1

16. Oxygen (1304Å) dataset 2

17. Oxygen (1304Å) dataset 3

18. Oxygen (1304Å) dataset 4

19. Remaining issues  Intensity calibration - flatfielding
How do I deal with evil pixels?
What is the smallest usable time resolution?
What is the optimal grid resolution?