University of Sussex

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Detection and deflection techniques for short-time warning PHOs: ISU planetary defense project

posted on 2023-06-09, 00:10 authored by Oshri Rozenheck, Carlos M Entrena Utrilla, Alaa Hussein
Throughout recorded history, hundreds of Earth impacts have been reported, with some catastrophic localized consequences. Based on the International Space University (ISU) Planetary Defense project named READI, we address the impact event problem by giving recommendations for the development of a planetary defense program. This paper reviews the current detection and tracking techniques and gives a set of recommendations for a better preparation to shield Earth from asteroid and cometary impacts. We also extend the use of current deflection techniques and propose a new compilation of those to deflect medium-sized potentially hazardous objects (PHOs). Using an array of techniques from high-energy lasers to defensive missiles, we present a set of protective layers to defend our planet. The paper focused on threats with a short warning period from discovery to impact with Earth, specifically one to two years.


Publication status

  • Published

File Version

  • Published version

Page range


Presentation Type

  • paper

Event name

56th Annual Conference on Aerospace Sciences (ACAS)

Event type


Event date

9-10 March 2016

Department affiliated with

  • Engineering and Design Publications

Research groups affiliated with

  • Industrial Informatics and Signal Processing Research Group Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date


First Compliant Deposit (FCD) Date