Design of spacecraft missions to remove multiple orbital debris objects

Brent W. Barbee, Salvatore Alfano, Elfego Piñon, Kenn Gold, David Gaylor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


The amount of hazardous debris in Earth orbit has been increasing, posing an evergreater danger to space assets and human missions. In January of 2007, a Chinese ASAT test produced approximately 2600 pieces of orbital debris. In February of 2009, Iridium 33 collided with an inactive Russian satellite, yielding approximately 1300 pieces of debris. These recent disastrous events and the sheer size of the Earth orbiting population make clear the necessity of removing orbital debris. In fact, experts from both NASA and ESA have stated that 10 to 20 pieces of orbital debris need to be removed per year to stabilize the orbital debris environment. However, no spacecraft trajectories have yet been designed for removing multiple debris objects and the size of the debris population makes the design of such trajectories a daunting task. Designing an efficient spacecraft trajectory to rendezvous with each of a large number of orbital debris pieces is akin to the famous Traveling Salesman problem, an NP-complete combinatorial optimization problem in which a number of cities are to be visited in turn. The goal is to choose the order in which the cities are visited so as to minimize the total path distance traveled. In the case of orbital debris, the pieces of debris to be visited must be selected and ordered such that spacecraft propellant consumption is minimized or at least kept low enough to be feasible. Emergent Space Technologies, Inc. has developed specialized algorithms for designing efficient tour missions for near-Earth asteroids that may be applied to the design of efficient spacecraft missions capable of visiting large numbers of orbital debris pieces. The first step is to identify a list of high priority debris targets using the Analytical Graphics, Inc. SOCRATES website and then obtain their state information from Celestrak. The tour trajectory design algorithms will then be used to determine the itinerary of objects and Δv requirements. These results will shed light on how many debris pieces can be visited for various amounts of propellant, which launch vehicles can accommodate such missions, and how much margin is available for debris removal system payloads.

Original languageEnglish (US)
Title of host publicationGuidance and Control 2012 - Advances in the Astronautical Sciences
Subtitle of host publicationProceedings of the 35th Annual AAS Rocky Mountain Section Guidance and Control Conference
Number of pages18
StatePublished - 2012
Externally publishedYes
Event35th Annual AAS Rocky Mountain Section Guidance and Control Conference - Breckenridge, CO, United States
Duration: Feb 3 2012Feb 8 2012

Publication series

NameAdvances in the Astronautical Sciences
ISSN (Print)0065-3438


Other35th Annual AAS Rocky Mountain Section Guidance and Control Conference
Country/TerritoryUnited States
CityBreckenridge, CO

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science


Dive into the research topics of 'Design of spacecraft missions to remove multiple orbital debris objects'. Together they form a unique fingerprint.

Cite this