| University of Colorado |
The University of Colorado has produced evaluations of the effectiveness of ODTK for performing orbit determination based on GPS measurements. Four reports have been completed to date covering the use of pseudo-range and carrier phase measurements inclusive of satellite attitude modeling and the use of navigation solutions as measurements in ODTK versions 1.1, 2.0, 3.0 and 4.0. |
2007 (v4.0) 2004 (v3.0) 2004 (v2.0) 2003-04 (v1.1) |
| Sensis Corporation |
Sensis Corporation performed a Validation and Verification of AGI's aircraft flight-path modeling tool, Aircraft Mission Modeler,
by comparing a flight trajectory created within STK to an externally generated trajectory model. According to Sensis, "The Aircraft
Mission Modeler in STK provides the capability to accurately represent the flight trajectory of any aircraft based on user-provided
flight paths." Read more.
|
2006 |
| Center for Space Standards & Innovation (CSSI) |
CSSI analyzed state vector propagation using differing flight dynamics programs:
GEODYN (Goddard, NASA, NRL, other)
GTDS (Goddard Trajectory Determination System, MIT)
HPOP (Analytical Graphics Inc., Satellite Tool Kit)
SPECIAL-K (Navy)
TRACE (Raytheon/Geodynamics)
|
2005 |
| John Draim, Aerospace Consultant |
In his paper "Satellite Constellations," presented at the 55th International Astronautical Congress, Draim compares STK to six other satellite orbit and constellation development tools. He calls it "without a doubt the most
advanced commercially available and reasonably priced computer product available to the satellite constellation designer. Draim generated all analytical figures for his paper using the freeware version of STK. |
2004 |
| NASA Goddard |
The WMAP mission to the L2 libration point used STK/Astrogator for trajectory design, including calculating the launch windows, designing the phasing loops, targeting orbit insertion, operational maneuver planning, engine calibration, and contingency planning. |
2002 |
| The Aerospace Corporation |
The Aerospace Corporation performed an independent Verification & Validation of STK functions: high-precision orbit propagation, orbital parameter and coordinate-frame transformations, and access and visibility calculations. |
2000 |
| Philips Laboratory |
Philips Laboratory conducted an orbit analysis survey and catalogue of STK vs. 112 other tools for: orbit propagation, launch simulation, add’l object definition, orbit determination, maneuver planning, ground track depiction, ground site location, ground site visibility, real-time pass support, onboard sensor, multiple objects, mutual satellite visibility, celestial objects, constraints, timeline, orbit synthesis and design, units, satellite model, data storage, supportability, processor, interface. |
1996 |
For more information or to request a copy of one of our published reports, please e-mail vv@agi.com.
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