Minimum delta-V for deflecting Earth-Crossing Asteroids

Sang Young Park, Jeffrey T. Elder, I. Michael Ross

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We present a formulation of a finite-dimensional optimization problem associated with the deflection of Earth-Crossing Asteroids. The performance measure is minimizing the delta-V requirement for achieving a minimum target separation distance. A number of astrodynamical constraints are identified and modeled. The constrained optimization problem is numerically solved using a sequential quadratic programming method. Our numerical analysis indicates that the minimum delta-V requirement is not a monotonically decreasing function of the warning time; rather, there is a finer structure associated with the orbital period of the colliding asteroid. Computations performed for the asteroid Toutatis also illustrate these points.

Original languageEnglish
Pages (from-to)1969-1978
Number of pages10
JournalAdvances in the Astronautical Sciences
Volume97 PART 2
Publication statusPublished - 1997

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science


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