1. GEOMETER Update
Get new version of GEOMETER from Team web site after August 8.
Some new parameters now computed (illum angles for “near point” of non-intersecting lines of sight); bug fixes which affect occultations at high precision (aberration, double precision).
Uses NAIF “ICY” package available from naif.jpl.nasa.gov via ftp.
User must ensure all appropriate kernels are loaded (kernels available from secure Cassini web site
Requires IDL 6.1.
January 5, 2005
UVIS Team Meeting

2. Capabilities
Calculate all relevant geometric parameters for corners and centers of all pixels and FOVs.
GEOMETER_ENGINE may be called separately by user-supplied software: returns pointing for one pixel at one time.
Visualization routines for mapping in sky, target body, and ring coordinate systems.
January 5, 2005
UVIS Team Meeting

3. January 5, 2005
UVIS Team Meeting

4. January 5, 2005
UVIS Team Meeting

5. SkyMap Pre-SOI
January 5, 2005
UVIS Team Meeting

6. Target View Pre-SOI
January 5, 2005
UVIS Team Meeting

7. Target View High Inclination
January 5, 2005
UVIS Team Meeting

8. List of Planned Upgrades
Lat/Lon grid on target bodies.
Shading of unlit hemisphere and shadowed rings.
Plotting of FOV footprints at multiple times to allow for user control of how FOVs are displayed.
Performance may be improved by using new vectorized ICY routines, (but backwards-compatability issues).
Let me know if you have suggestions or needs for new features in GEOMETER.
January 5, 2005
UVIS Team Meeting