Software capability questions

[jon <mtrhed@ix.netcom.com>]

General Dynamics Information Systems
Senior Engineer
(303) 649-7691
8005 S. Chester St., Suite 325
Englewood, CO 80112
jonathan.s.lee@gd-is.com

Sir or Madam,

My name is Jonathan Lee and I am a senior engineer for General Dynamics Information Systems in Englewood, Colorado. I have included a list of questions that would help me perform a trade study on some commercial software. Please send any information that answer these questions. Thank you very much for your time.

Jonathan Lee
1999 Aug 24 1344 local

Technical capabilities

• WGS84 earth model compliant? Need header or constants file for verification.
• Validated? Against what standards?
• Switch able from WGS84 to WGS72?
• J2000?
• GPS compatible?
• Coordinate systems available. ECI, ECEF?
• Debugging capabilities?
• Propagate or predict from TLES? Duration of prediction?
• Predictor types? Integrator used for position determination?
• Access to target?
• Gap time?
• Mean time to revisit?
• Attitude modeling capability?
• Drag models?
• Atmospheric conditions?
• Terrain model?
• Constellation management?
• Communications traffic simulation for both space and ground segments?
• Interface with other software packages?

Graphics

• Footprint projection as a function of RF, grazing angle...etc?
• LOS highlight during window of opportunity?
• LOS un-highlighting during gap?
• Level of map detail?
• Cylindrical earth map with data overlay?
• Contour package?
• Histograms?
• Accept GS <lat,lon> and sat <t,a,e,i,O,M,n> and show coverage?
• Compute and display statistics for above technical quantities?
• �Movie� display capability?

Costs

• Cost?
• Greater than one user -- site license price break?
• Platforms?
• User support?