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Enabling Large-body Active Debris Removal

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2013 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
VectorNav Technologies, LLC
903 North Bowser Road, Suite 200 Richardson, TX 75081-2897
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2013
Title: Enabling Large-body Active Debris Removal
Agency: NASA
Contract: NNX13CJ47C
Award Amount: $699,997.00


Research suggests that: (1) orbital debris has reached the point that, even with no future launches, collisions among large-body debris will lead to unstable growth in debris, and (2) removing as few as five large objects each year can stabilize debris growth. For large-body active debris removal (LB-ADR), new technologies are required to safely capture the target debris. The interactions of these complex electromechanical systems (eg. imaging systems, robotic arms and grippers) and controllers pose challenges best addressed by hardware-in-the-loop (HWIL) testing. Given the risks inherent in non-cooperative spacecraft proximity operations and the firm requirement that ADR missions do not themselves produce additional debris, realistic ground-based testing is required for risk reduction.Our approach to HWIL contains two major advancements: (1) novel robotic technologies that overcome the limitations of existing test facilities, and (2) carefully designed spacecraft models capable of thoroughly evaluating every aspect of a capture system. The LASR Lab was built around HOMER, an omnidirectional robot designed and built specifically to emulate the 6-DOF relative-motion trajectories of spacecraft. The Phase I effort validated HOMER's capabilities and reduced to hardware the Dynamic Payload Pendulum (DPP), an actively controlled pendulum that provides the equivalent of a 5-DOF air-bearing. Together, they permit large-scale motion with accurate contact dynamics. Having identified rocket boosters as ideal LB-ADR targets, we investigated the model features necessary for realistic testing of grappling and sensing systems and for accurate dynamic response on the DPP. Leveraging the developments of Phase I and concurrent work on autonomous, vision-based navigation systems at the LASR Lab, we propose to simultaneously advance the TRL of the ground-test facility and the nav systems by performing an end-to-end simulation of an approach and capture of multiple rocket bodies.

Principal Investigator:

John L. Junkins
Principal Investigator

Business Contact:

Jeremy Davis
Business Official
Small Business Information at Submission:

VectorNav Technologies, LLC
903 North Bowser Road, Suite 200 Richardson, TX 75081-2897

EIN/Tax ID: 263690258
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Texas Engineering Experiment Station / Texas A&M University
3141 TAMU
College Station, TX 77845-77845
Contact: John Junkins