dave-vallado

Dave Vallado

Sr. Research Astrodynamicist


David performs research into advanced astrodynamics techniques to improve space surveillance capabilities.



“When I'm not working, you can find me woodworking, playing classical piano, building homes, landscaping, and hiking.”




BACKGROUND


EXPERTISE

Aerospace Engineering
Systems Engineering
Space Situational Awareness
Space Operations R&D Standards
Astrodynamics & Space Missions
Orbital Debris Mitigation
Orbit Lifetime
Space Track


THOUGHT LEADERSHIP

Papers
Presentations
Articles
Videos

Deep operator and SSA collaboration for space sustainability

Contrasting the Inflection Points and Efforts in Space Traffic Coordination and Management

Addressing the debilitating effects of maneuvers on SSA accuracy and timeliness

Actionability and Persistence of Conjunction Data

DEEP OPERATOR AND SSA COLLABORATION FOR SPACE SUSTAINABILITY

Threat Analysis of Unreported Satellites in Geostationary Orbit

Long-Term Numerical Propagation for Earth Orbiting Satellites

Russian ASAT Debris Cloud Evolution and Risk

Results of comprehensive STCM data fusion experiment

Long-term numerical propagation for Earth orbiting satellites

Debris Risk Evolution And Dispersal (DREAD) for post-fragmentation modeling

Sequential Processing of ILRS Observations – Experiences over the last 5 years

Generating realistic sensor observations for OD analysis

Fragmentation event debris field evolution using 3d volumetric risk assessment

Application of New Debris Risk Evolution And Dissipation (DREAD) Tool to Characterize Post-Fragmentation Risk

Orbital Strategies to Mitigate the Solar Exclusion Effect on Space-Based Observation of the Geosynchronous Belt

New Consolidated Files for Earth Orientation Parameters and Space Weather Data

Updated Analytical Partials for Covariance Transformations and Optimization

Sequential Orbit Determination Using Satellite Laser Ranging

Improved SSA through orbit determination of Two Line Element Sets

SIMULATING SPACE SURVEILLANCE NETWORKS

Orbit Determination Results From Optical Measurements

Evaluating Gooding Angles-only Orbit Determination of Space Based Space Surveillance Measurements

ORBIT DETERMINATION ISSUES AND RESULTS TO INCORPORATE OPTICAL MEASUREMENTS IN CONJUNCTION OPERATIONS

SGP4 Orbit Determination

An Analysis of State Vector Prediction Accuracy

Revisiting Spacetrack Report #3

Contrasting the Inflection Points and Efforts in Space Traffic Coordination and Management

Addressing the debilitating effects of maneuvers on SSA accuracy and timeliness

Actionability and Persistence of Conjunction Data

DEEP OPERATOR AND SSA COLLABORATION FOR SPACE SUSTAINABILITY

Threat Analysis of Unreported Satellites in Geostationary Orbit

Long-Term Numerical Propagation for Earth Orbiting Satellites

Russian ASAT Debris Cloud Evolution and Risk

Results of comprehensive STCM data fusion experiment

So is My Satellite Really Safe?

Lambert’s Problem – not another one!

SSA/STM and you

Long-term numerical propagation for Earth orbiting satellites

Recreating the Apollo 11 trajectory

Debris Risk Evolution And Dispersal (DREAD) for post-fragmentation modeling

Sequential Processing of ILRS Observations – Experiences over the last 5 years

Generating realistic sensor observations for OD analysis

Fragmentation event debris field evolution using 3d volumetric risk assessment

Is my Geosynchronous satellite going to be hit?

Application of New Debris Risk Evolution And Dissipation (DREAD) Tool to Characterize Post-Fragmentation Risk

Orbital Strategies to Mitigate the Solar Exclusion Effect on Space-Based Observation of the Geosynchronous Belt

New Consolidated Files for Earth Orientation Parameters and Space Weather Data

Updated Analytical Partials for Covariance Transformations and Optimization

Sequential Orbit Determination Using Satellite Laser Ranging

Improved SSA through orbit determination of Two Line Element Sets

SIMULATING SPACE SURVEILLANCE NETWORKS

Orbit Determination Results From Optical Measurements

Evaluating Gooding Angles-only Orbit Determination of Space Based Space Surveillance Measurements

ORBIT DETERMINATION ISSUES AND RESULTS TO INCORPORATE OPTICAL MEASUREMENTS IN CONJUNCTION OPERATIONS

SGP4 Orbit Determination

An Analysis of State Vector Prediction Accuracy

Revisiting Spacetrack Report #3

Deep operator and SSA collaboration for space sustainability

Contrasting the Inflection Points and Efforts in Space Traffic Coordination and Management

Addressing the debilitating effects of maneuvers on SSA accuracy and timeliness

Actionability and Persistence of Conjunction Data

DEEP OPERATOR AND SSA COLLABORATION FOR SPACE SUSTAINABILITY

Threat Analysis of Unreported Satellites in Geostationary Orbit

Long-Term Numerical Propagation for Earth Orbiting Satellites

Russian ASAT Debris Cloud Evolution and Risk

Results of comprehensive STCM data fusion experiment

Long-term numerical propagation for Earth orbiting satellites

Debris Risk Evolution And Dispersal (DREAD) for post-fragmentation modeling

Sequential Processing of ILRS Observations – Experiences over the last 5 years

Generating realistic sensor observations for OD analysis

Fragmentation event debris field evolution using 3d volumetric risk assessment

Application of New Debris Risk Evolution And Dissipation (DREAD) Tool to Characterize Post-Fragmentation Risk

Orbital Strategies to Mitigate the Solar Exclusion Effect on Space-Based Observation of the Geosynchronous Belt

New Consolidated Files for Earth Orientation Parameters and Space Weather Data

Updated Analytical Partials for Covariance Transformations and Optimization

Sequential Orbit Determination Using Satellite Laser Ranging

Improved SSA through orbit determination of Two Line Element Sets

SIMULATING SPACE SURVEILLANCE NETWORKS

Orbit Determination Results From Optical Measurements

Evaluating Gooding Angles-only Orbit Determination of Space Based Space Surveillance Measurements

ORBIT DETERMINATION ISSUES AND RESULTS TO INCORPORATE OPTICAL MEASUREMENTS IN CONJUNCTION OPERATIONS

SGP4 Orbit Determination

An Analysis of State Vector Prediction Accuracy

Revisiting Spacetrack Report #3