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White Papers

Browse through our white papers, written by those who know the technology best, to learn detailed technical information about our products.

A Comparison of Lunar Landing Trajectory Strategies Using Numerical Simulations
September 2005 (4.31 MB)

A Critical Assessment of Satellite Drag and Atmospheric Density Modeling
August 2008 (871 KB)

A Numerical Study of Orbit Lifetime
August 2005 (336 KB)

Accommodating Rectangular Objects in Probability Calculations
August 2004 (360 KB)

Adding Temporal Geospatial Content for Joint Intelligence Operations
August 2008 (1.2 MB)

AGI Recommended Practices for Incorporating the 31 Dec. 2005 Leap Second
November 2006 (41 KB)

Assessing SATNAV Performance Using the Navigation Tool Kit
September 2004 (326 KB)

Attitude Covariance Visualization
August 2002 (234 KB)

Attitude Interpolation
February 2003 (314 KB)

Benefits Associated with AGI Software by Frost & Sullivan
October 2008 (2 MB)

Calculation of Weak Stability Boundary Ballistic Lunar Transfer Trajectories
August 2000 (326 KB)

Case Study: Analytical Graphics, Inc.'s Geodynamic Software
September 2004 (697 KB)

Closed-Loop Near-Optimal Slew Control Using Interpolation Polynomials Without Angular Velocity
August 2003 (375 KB)

Communication Link Analysis for ION-F Mission
March 2007 (75.1 KB)

Comprehensive Navigation Analysis for UAVs Using COTS
October 2006 (71.5 KB)

Contingency Planning and Mission Performance Impacts: A Novel Approach to Launch Error Simulation, C
December 2003 (309 KB)

Contribution of Physical Layer Uncertainties To Directed Energy Applications
November 2005 (684 KB)

COTS Implementation of a Sensor Planning Service GetFeasibility Operation - Interim Status
January 2010 (218 KB)

Critical Progress Toward a Turn-Key Collision Avoidance Process
October 2003 (853 KB)

Crowded Streets of Spectrum - Is GPS Being Walked All Over?
September 2006 (312 KB)

Customizing STK for the NEAR Mission
February 1997 (362 KB)

Determination of Close Approaches Based on Ellipsoidal Threat Volumes
February 1999 (152 KB)

Determination of Close Approaches for Constellations of Satellites
November 1997 (173 KB)

Determination of Close Approaches for Earth-Fixed Launch Trajectories
February 1998 (101 KB)

Do We Need Augmentation Systems?
May 2007 (2.29 MB)

Effects of Cross-Correlated Covariance on Spacecraft Collision Probability
February 2004 (139 KB)

Effects of Eclipse Boundary Crossings on the Numerical Integration of Orbit Trajectories
August 2000 (114 KB)

Efficient Numerical Integration of Coupled Orbit and Attitude Trajectories Using an Encke Type Correction Algorithm
August 2001 (120 KB)

Enhancing ArcGIS Desktop Analysis: Satellites, Sensors & Communication Systems
January 2007 (372 KB)

Enterprise Temporal Web Services for Disaster Management Planning
January 2006 (725 KB)

Estimation of Instantaneous Maneuvers Using a Fixed Interval Smoother
August 2003 (123 KB)

Fidelity at High Speed: Wireless Insite ® Real Time Module "
October 2009 (1.96 MB)

Formation Flying of a Telescope/Occulter System with Large Separations in an L2 Libration Orbit
September 2008 (2.67 MB)

Generalization of Adaptive Attitude Tracking
August 2002 (206 KB)

GPS Composite Clock Analysis
January 08 (PDF file, 1 MB)

Maritime Domain Awareness (MDA) - Commercial Air Maritime Surveillance
October 2007 (2.4 MB)

Mitigation of the Effects of Eclipse Boundary Crossings on the Numerical Integration of Orbit Trajec
February 2001 (100 KB)

Mitigation of the Effects of Eclipse Boundary Crossings on the Numerical Integration of Orbit Trajectories Using an Encke Type Correction Algorithm
February 2001 (PDF file, size 100K)

Navigation Modeling
January 2007 (703 KB)

Orbit Determination of Satellites in Lunar Orbit Using an Optimal Sequential Filter
February 2008 (PDF, size 3.32 MB)

Orbit Determination Tool Kit Technical Summary
January 2007 (174 KB)

Reducing software development cost, schedule and risk using AGI software
August 2009 (358 KB)

Sample Orbit Covariance Function and Filter-Smoother Consistency Tests
February 2008 (PDF file, size 1 MB)

Space Vehicles in Virtual Globes
May 2007 (224 KB)

The Customization of Satellite Tool Kit for use on the NEAR Mission
February 1997 (PDF file, size 362K)

The Demand for Automated Trade Studies and Optimization
June 2006 (344 KB)

The IAU 2000A and IAU 2006 Precession-Nutation Theories and Their Implementation
May 2009 (562 KB)

The Optwise Corporation Deconfliction Scheduler Algorithms
September 2004 (668 KB)

Conference Papers

Addressing Nonlinear Relative Motion For Spacecraft Collision Probability
August 2006 (472 KB)

Analysis of the Response of a Space Surveillance Network to Orbital Debris Events
February 2008 (2.3 MB)

Anti-Satellite Engagement Vulnerability
August 2009 (1.4 MB)

ArcGIS-based Dynamic Intervisibility Analysis for Satellites, Sensors, and Ground Sites (AGI & ProLogic)
August 2008 (1.25 MB)

Beta Conjunction Analysis Tool
August 2007 (311 KB)

Collision Avoidance Maneuver Planning Tool
August 2005 (705 KB)

Correct Modeling of the Indirect Term for Third-Body Perturbation
October 2007 (137 KB)

Electronic Warfare Asset Optimization/Management
November 2007 (2.69 MB)

GNSS Performance Possibilities
May 2007 (533 KB)

Goodness-of-fit Tests for Sequential Orbit Determination
March 2010 (743 KB)

Improved Conjunction Analysis via Collaborative Space Situational Awareness
August 2008 (516 KB)

Integration of Orbit Trajectories in the Presence of Multiple Full Gravitational Fields
February 2008 (66 KB)

International Lunar Conference
September 2005 (4.31 MB)

Investigating Orbital Debris Events Using Numerical Methods with Full Force Model Orbit Propagation
February 2008 (2.3 MB)

Leveraging COTS Software to Identify and Mitigate Risk During Launch Operations
September 2006 (1.5 MB)

Long-Term Prediction of GPS Accuracy: Understanding the Fundamentals
August 2008 (479 KB)

Minimum Order Adaptive Attitude Control
August 2000 (104 KB)

Nonlinear Variable Lag Smoother
May 2009 (1 MB)

Optimal Orbit Determination
August 2003 (156 KB)

Orbit Covariance Inner Integrals with Polynomials
February 2008 (222 KB)

Orbit Determination During High Thrust and Low Thrust Maneuvers
January 05 (PDF file, size 520K)

Orbit Gravity Error Covariance, James Wright
February 2008 (PDF file, size 242 KB)

Orbital Covariance Interpolation
November 2004 (PDF file, size 130K)

Orbital Debris Visualization
9-10-2007 (4.88 MB)

Parametric Optimization of Closed-Loops Slew Control Using Interpolation Polynomials
February 2006 (PDF file, size 371K)

Position Covariance Visualization
August 2002 (PDF file, size 107K)

Post-Maneuver Orbit Accuracy Recovery Analysis
March 2010 (301 KB)

Proximity Operations for Space Situational Awareness Spacecraft Closed-Loop Maneuvering Using Numerical Simulations and Fuzzy Logic, AMOS Technical Conference
September 2006 (PDF file, size 2.4MB)

Real-Time Estimation of Local Atmospheric Density
August 2003 (PDF file, size 379K)

Removal of Arbitrary Discontinuities in Atmospheric Density Modeling
February 04 (PDF file, size 151K)

Review of Conjunction Probability Methods for Short-term Encounters
February 2007 (1.5 MB)

Satellite Orbit Conjunction Reports Assessing Threatening Encounters In Space (SOCRATES)
May 2005 (PDF file, size 328K)

Satellite Orbital Conjunction Reports Assessing Threatening Encounters in Space
January/April/August 2005 (1.2 MB)

SGP4 Orbit Determination
August 2008 (PDF, size 461 KB)

Simultaneous Precession Maneuver and Active Nutation Control
February 2001 (PDF file, size 255K)

Simultaneous Real-Time Estimation of Atmospheric Density and Ballistic Coefficient
February 2004 (PDF file, size 775K)

Software Architecture and Use of Satellite Tool Kit's Astrogator Module for Libration Point Orbit Mi
June 2004 (PDF file, size 73K)

Statistical Analysis of military and civilian navigation error data services
Sept 2005 (180 KB)

Sun-Mars Libration Points and Mars Mission Simulations
February 2001 (PDF file, size 265K)

Targeting of Precession Maneuver with Active Nutation Control
August 2001 (PDF file, size 290K)

The Orbit Determination Tool Kit - Version 5
November 2007 (256 KB)

Time Critical Targeting Using Responsive Tactical Satellites
April 2006 (PDF file, size 297K)

Trajectory Sensitivities for Sun-Mars Libration Point MIssions
July 2001 (PDF file, size 184K))

UAV Payload Trades, Analysis, and Effects-Based Selection
November 2007 (1.53 MB)

Visualization of Astrodynamics and Attitude Concepts for Education
August 2003 (PDF file, size 131K)

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