Publications

The CSSI Team frequently presents their research at industry events and publishes papers, textbooks, and resources for the community. Recent publications are listed at top; or you may choose to view by individual.

2011 AAS/AIAA Astrodynamics Specialist Conference, August 2011

• "Toroidal Path Filter," Paper No. AAS 11-438, AAS/AIAA Astrodynamics Specialist Conference,
  Salvatore Alfano - July 31-August 4, Girdwood, AK.
• Curvilinear Coordinates for Covariance and Relative Motion Operations. Paper AAS 11-464 presented at the AAS/AIAA Astrodynamics Specialist Conference.
  Vallado, David A. and Salvatore Alfano - July 31-August 4, Girdwood, AK.
• Verifying Observational Data for Real World Space Situational Awareness. Paper AAS 11-439 presented at the AAS/AIAA Astrodynamics Specialist Conference.
  Vallado, David A. - July 31-August 4, Girdwood, AK.
• Simulating Space Surveillance Networks. Paper AAS 11-580 presented at the AAS/AIAA Astrodynamics Specialist Conference.
  Vallado, David A. and Jacob D. Griesbach - July 31-August 4, Girdwood, AK.
• Earth Orientation Parameter Considerations for Precise Spacecraft operations. Paper AAS 11-529 presented at the AAS/AIAA Astrodynamics Specialist Conference.
  Bradley, Ben K., and David A. Vallado, Aurore Sibois, and Penina Axelrad - July 31-August 4, Girdwood, AK.

2011 AAS/AIAA Spaceflight Mechanics Conference, February 2011

• Sequential Orbit-Estimation with Sparse Tracking. Paper AAS 11-123 presented at the AAS/AIAA Space Flight Mechanics Conference.
  Seago, John H., Jacob Griesbach, James W. Woodburn, and David A. Vallado - February 17-20. New Orleans, LA.

AMOS 2010 - Advances in Satellite Conjunction Analysis

• Advances in Satellite Conjunction Analysis - AMOS 2010 by Robert Hall, Dr. Sal Alfano, and Alan Ocampo

2010 AAS Spaceflight Mechanics Conference, February 2010

• GOODNESS-OF-FIT TESTS FOR SEQUENTIAL ORBIT DETERMINATION by John H. Seago and David A. Vallado

2010 US Russian Space Surveillance Workshop, Apr 2010

• Evaluating Gooding Angles-only Orbit Determination of Space Based Space Surveillance Measurements by David A. Vallado

2010 International Conference for Astrodynamic Tools and techniques, May 2010

• Orbit Determination Using ODTK Version 6 by David A. Vallado, Richard S. Hujsak, Thomas M. Johnson, John H. Seago, James W. Woodburn
• Orbit Determination Results from Optical Measurements by David A. Vallado, Vladimir Agapov

2010 AAS Born Symposium, May 2010

• Evaluating Gooding Angles-only Orbit Determination of Space Based Space Surveillance Measurements by David A. Vallado

2010 AAS/AIAA Astrodynamics Specialist Conference, August 2010

• Orbit Determination Results from Optical Measurements by David A. Vallado, Vladimir Agapov

2009 AMOS Technical Conference, September 2009

• Analysis of the Iridium 33-Cosmos 2251 Collision by T.S. Kelso

2009 AIAA/AAS Astrodynamics Specialist Conference, August 2009

• Anti-Satellite Engagement Vulnerability by Salvatore Alfano
• Analysis of the Iridium 33-Cosmos 2251 Collision by T.S. Kelso
• Covariance Realism by David A. Vallado and John H. Seago

Fifth European Conference on Space Debris, March-April 2009

• Orbit Determination Issues and Results to Incorporate Optical Measurements in Conjunction Operations by David A. Vallado, T.S. Kelso, Vladimir Agapov, and Igor Molotov
• Improved Conjunction Analysis via Collaborative Space Situational Awareness by T.S. Kelso, David A. Vallado, Joseph Chan, and Bjorn Buckwalter

2009 AAS/AIAA Space Flight Mechanics Meeting, February 2009

• Satellite Conjunction Monte Carlo Analysis by Salvatore Alfano
• The IAU 2000A and IAU 2006 Precession-Nutation Theories and Their Implementation by Vincent Coppola, John H. Seago, and David A. Vallado

3rd International Association for the Advancement of Space Safety Conference, October 2008

• Improved Conjunction Analysis via Collaborative Space Situational Awareness by T.S. Kelso, David A. Vallado, Joseph Chan, and Bjorn Buckwalter

2008 AMOS Technical Conference, September 2008

• Improved Conjunction Analysis via Collaborative Space Situational Awareness by T.S. Kelso, David A. Vallado, Joseph Chan, and Bjorn Buckwalter

2008 AIAA/AAS Astrodynamics Specialist Conference, August 2008

• SGP4 Orbit Determination by David A. Vallado
• SGP4 Orbit Determination Code

2008 AGI User Conference

• A Critical Assessment of Satellite Drag and Atmospheric Density Modeling by David A. Vallado,David Finkleman

2007 US-Russian Space Surveillance Workshop, October 2007

• An Analysis of State Vector Prediction Accuracy by David A. Vallado

2007 AMOS Technical Conference, September 2007

• Analysis of the 2007 Chinese ASAT Test and the Impact of its Debris on the Space Environment by T.S. Kelso

2007 AAS/AIAA Astrodynamics Specialist Conference, August 2007

• A Preliminary Analysis of State Vector Prediction Accuracy by David A. Vallado
• Beta Conjunction Analysis Tool by Salvatore Alfano

2007 AAS/AIAA Space Flight Mechanics Meeting, February 2007

• Review of Conjunction Probability Methods for Short-term Encounters by Salvatore Alfano
• Validation of SGP4 and IS-GPS-200D Against GPS Precision Ephemerides by T.S. Kelso

2006 AMOS Technical Conference, September 2006

• Proximity Operations for Space Situational Awareness by Timothy Carrico, Travis Langster, John Carrico, David Vallado, Mike Loucks, and Salvatore Alfano

2006 AIAA/AAS Astrodynamics Specialist Conference, August 2006

• Revisiting Spacetrack Report #3 by David A. Vallado, Paul Crawford, Richard Hujsak, and T.S. Kelso
• SGP4 Code
• Addressing Nonlinear Relative Motion For Spacecraft Collision Probability by Salvatore Alfano

2006 AAS/AIAA Space Flight Mechanics Meeting, January 2006

• Implementation Issues Surrounding the New IAU Reference Systems for Astrodynamics by David A. Vallado, John H. Seago, and P. Kenneth Seidelmann
• Progress in International Space and Astrodynamics Standards by David Finkleman and Daniel Oltrogge

Eighth Annual Directed Energy Symposium, November 2005

• Contribution of Physical Layer Uncertainties To Directed Energy Applications by Salvatore Alfano, Christopher T. Kucera, and David Finkleman

The Journal of the Astronautical Sciences, Vol. 53, No. 1, January-March 2005

• A Numerical Implementation of Spherical Object Collision Probability by Salvatore Alfano

2005 AAS/AIAA Astrodynamics Specialist Conference, August 2005

• Collision Avoidance Maneuver Planning Tool by Salvatore Alfano
• Using EOP and Solar Weather Data for Real-time Operations by David A. Vallado and T.S. Kelso

2005 AAS/AIAA Astrodynamics Specialist Conference, August 2005

• Satellite Orbital Conjunction Reports Assessing Threatening Encounters in Space (SOCRATES) by T.S. Kelso and Salvatore Alfano
  • Download (PDF 1.17 MB) | Download (PPT 605 kB)

• Standards, Rules, Innovation, and Inhibition by Dr. David Finkleman
  • Download (PDF 119 kB) | Download (PPT 626 kB)

• An Analysis of State Vector Propagation Using Differing Flight Dynamics Programs by David A. Vallado
  • Download (PDF 639 kB) | Download (PPT 706 kB)
  • Download Supporting Data
  • Revision 2 of original paper

• Transforming Space Surveillance to Meet Today’s Space Superiority Needs by David Derocher
  • Download (PDF 248 kB) | Download (PPT 1.93 MB)

• An Independent Technical Review Process for Government Developed Models by Michael J. Gabor
  • Download (PDF 60 kB) | Download (PPT 32 kB)

• Trust Risk and Aerospace Software - Balance and Optimization by Dr. Sally Baron
  • Download (PDF 59 kB) | Download (PPT 40 kB)

Salvatore Alfano

• Determining a Probability-Based Distance Threshold for Conjunction Screening (February 2013 PDF 489 KB)
• Operating Characteristics Approach to Effective Satellite Conjunction Filtering (February 2013 PDF 734 KB)
• Toroidal Path Filter (August 2011 PDF 524 KB)
• Anti-Satellite Engagement Vulnerability (August 2009 PDF 1.35 MB)
• Satellite Conjunction Monte Carlo Analysis (February 2009 PDF 386 kB)
• Beta Conjunction Analysis Tool (August 2007 PDF 310 kB)
• Review of Conjunction Probability Methods for Short-term Encounters (February 2007 PDF 1.51 MB)
• Proximity Operations for Space Situational Awareness (September 2006 PDF 2.41 MB)
• Addressing Nonlinear Relative Motion For Spacecraft Collision Probability (August 2006 PDF 471 kB)
• Satellite Collision Probability Enhancements (May 2006 PDF 561 kB)
• Contribution of Physical Layer Uncertainties To Directed Energy Applications (November 2005 PDF 683 kB)
• Collision Avoidance Maneuver Planning Tool (August 2005 PDF 704 kB)
• Relating Position Uncertainty to Maximum Conjunction Probability (June 2005 PDF 1.35 MB)
• Satellite Orbital Conjunction Reports Assessing Threatening Encounters in Space (SOCRATES) (January 2005 PDF 1.14 MB)
• A Numerical Implementation of Spherical Object Collision Probability (January 2005 PDF 308 kB)
• Orbital Covariance Interpolation (February 2004 PDF 130 kB)
• Assessing the Instantaneous Risk of Direct Laser Impingement (September 2003 PDF 328 kB)
• Determining If Two Solid Ellipsoids Intersect (February 2003 PDF 240 kB)
• Predictive Avoidance for Ground-Based Laser Illumination (February 2000 PDF 208 kB)
• A Future Look at Space Surveillance and Operations (February 1999 PDF 135 kB)
• Determining Satellite Close Approaches, Part II (April 1994 PDF 1.02 MB)
• Circle-to-Circle Constant-Thrust Orbit Raising (January 1994 PDF 1.07 MB)
• Rapid Generation of Site/Satellite Timetables (November 1993 PDF 905 kB)
• Complete Method of Ratios (May 1993 PDF 1.28 MB)
• Two Variations of Certainty Control (July 1992 PDF 685kB)
• The Methods of Ratios (April 1992 PDF 1.11 MB)
• Rapid Determination of Satellite Visibility Periods (April 1992 PDF 1.22 MB)
• Hypervelocity Orbital Intercept Guidance Using Certainty Control (May 1991 PDF 1.40 MB)

David Finkleman

• Operating Characteristics Approach to Effective Satellite Conjunction Filtering (February 2013 PDF 734 KB)
• A Critical Assessment of Satellite Drag and Atmospheric Density Modeling (September 2008 PDF 1 MB)
• A Critical Assessment of Satellite Drag and Atmospheric Density Modeling (August 2008 PDF 871 kB)
• Progress in International Space and Astrodynamics Standards (January 2006 PDF 494 kB)
• Contribution of Physical Layer Uncertainties To Directed Energy Applications (November 2005 PDF 683 kB)
• Space Standards, Rules, Innovation, and Inhibition (January 2005 PDF 118 kB)

T.S. Kelso

• Analysis of the Iridium 33-Cosmos 2251 Collision (September 2009 PDF 3.13 MB)
• Analysis of the Iridium 33-Cosmos 2251 Collision (August 2009 PDF 2.91 MB)
• Improved Conjunction Analysis via Collaborative Space Situational Awareness (April 2009 PDF 609 kB)
• Orbit Determination Issues and Results to Incorporate Optical Measurements in Conjunction Operations (April 2009 PDF 1.38 MB)
• Improved Conjunction Analysis via Collaborative Space Situational Awareness (October 2008 PDF 491 kB)
• Improved Conjunction Analysis via Collaborative Space Situational Awareness (September 2008 PDF 789 kB)
• Analysis of the 2007 Chinese ASAT Test and the Impact of its Debris on the Space Environment (September 2007 PDF 1.24 MB)
• Validation of SGP4 and IS-GPS-200D Against GPS Precision Ephemerides (February 2007 PDF 710 kB)
• Revisiting Spacetrack Report #3 (August 2006 PDF 1.12 MB)
• Using EOP and Space Weather Data for Satellite Operations (August 2005 PDF 803 kB)
• Satellite Orbital Conjunction Reports Assessing Threatening Encounters in Space (SOCRATES) (January 2005 PDF 1.14 MB)
• Space Surveillance Contributions to the STS 107 Accident Investigation (February 2004 PDF 148 kB)
• Articles by T.S. Kelso in Satellite Times (September 1994 COM )
• Temporal Clustering in the Multi-Target Tracking Environment (July 1988 PDF 1.65 MB)

David Vallado

• Orbit Determination Results from Optical Measurements (August 2010 PDF 2 MB)
• Orbit Determination Results from Optical Measurements (May 2010 PDF 567 KB)
• Evaluating Gooding Angles-only Orbit Determination of Space Based Space Surveillance Measurements (May 2010 PDF 2 MB)
• Orbit Determination Using ODTK Version 6 (May 2010 PDF 2 MB)
• Evaluating Gooding Angles-only Orbit Determination of Space Based Space Surveillance Measurements (April 2010 PDF 2 MB)
• GOODNESS-OF-FIT TESTS FOR SEQUENTIAL ORBIT DETERMINATION (February 2010 PDF 739 KB)
• Covariance Realism (August 2009 PDF 436 kB)
• Improved Conjunction Analysis via Collaborative Space Situational Awareness (April 2009 PDF 609 kB)
• Orbit Determination Issues and Results to Incorporate Optical Measurements in Conjunction Operations (April 2009 PDF 1.38 MB)
• The IAU 2000A and IAU 2006 Precession-Nutation Theories and Their Implementation (February 2009 PDF 562 kB)
• Improved Conjunction Analysis via Collaborative Space Situational Awareness (October 2008 PDF 491 kB)
• A Critical Assessment of Satellite Drag and Atmospheric Density Modeling (September 2008 PDF 1 MB)
• Improved Conjunction Analysis via Collaborative Space Situational Awareness (September 2008 PDF 789 kB)
• A Critical Assessment of Satellite Drag and Atmospheric Density Modeling (August 2008 PDF 871 kB)
• SGP4 Orbit Determination (August 2008 PDF 461 kB)
• An Analysis of State Vector Prediction Accuracy (October 2007 PDF 685 kB)
• A Preliminary Analysis of State Vector Prediction Accuracy (August 2007 PDF 746 kB)
• Proximity Operations for Space Situational Awareness (September 2006 PDF 2.41 MB)
• Revisiting Spacetrack Report #3 (August 2006 PDF 1.12 MB)
• Implementation Issues Surrounding the New IAU Reference Systems for Astrodynamics (January 2006 PDF 343 kB)
• Using EOP and Space Weather Data for Satellite Operations (August 2005 PDF 803 kB)
• An Analysis of State Vector Propagation Using Differing Flight Dynamics Programs (January 2005 PDF 639 kB)
• Covariance Transformations for Satellite Flight Dynamics Operations (August 2003 PDF 333 kB)
• A Summary of Astrodynamic Standards (August 2001 PDF 111 kB)
• The Coordinate Frames of the US Space Object Catalogs (August 2000 PDF 111 kB)
• A Fresh Look at Angles-Only Orbit Determination (August 1999 PDF 1.11 MB)
• A Future Look at Space Surveillance and Operations (February 1999 PDF 135 kB)
• Software for Astrodynamics (February 1999 PDF 94 kB)
• An Analysis of the Behavior of the J2000 Reduction Matrices (February 1998 PDF 355 kB)
• Accurate Orbit Determination from Short-arc Dense Observational Data (August 1997 PDF 328 kB)
• Satellite Ephemeris Error Model (SEEM) Implementation/Validation on Government Micro-Computers (January 1989 PDF 802 kB)