AIM and CubeSats watch impact. Copyright: ESA -

A Space Mission Planning Advisory Group (SMPAG) of Member States with space agencies, facilitated by the United Nations on behalf of the international community, with no financial implications for the budget of the United Nations. Its responsibilities include laying out the framework, timeline and options for initiating and executing response activities, informing the civil-defence community about the nature of impact disasters and incorporating that community into the overall mitigation planning process through an impact disaster planning advisory group. 


Pursuant to the General Assembly resolution 71/90, paragraph 9 of 6 December 2016, the United Nations Office for Outer Space Affairs serves as the permanent secretariat to SMPAG.

This follows the decision by the Committee on the Peaceful Uses of Outer Space (A/71/20, para. 119) in 2016 that the Office for Outer Space Affairs acting as the permanent secretariat of SMPAG would ensure the continuity of the work of SMPAG, independent of its rotating chairmanship, and would provide for institutional memory in terms of keeping documentation records and ensuring consistent annual reporting to the Committee.


SMPAG members at present include: AEM (Mexico), ASI (Italy), FFG (Austria),  Belspo (Belgium), CNES (France), CNSA (China), Canadian Space Agency (CSA), Czech Republic, DLR (Germany), ESA, ISA (Israel), JAXA (Japan), KASI (Republic of Korea), NASA (USA), ROSA (Romania), ROSCOSMOS (Russian Federation), SSAU (Ukraine), SUPARCO (Pakistan), UKSA (UK) and IAWN (ex officio). SMPAG observers at present include: Association of Space Explorers (ASE), Committee on Space Research (COSPAR), European Southern Observatory (ESO), International Academy of Astronautics (IAA), International Astronomical Union (IAU), and the United Nations Office for Outer Space Affairs (UNOOSA).

The current Chair of SMPAG is the European Space Agency (ESA). 



Planetary Defense Conference 2023

2- 7 April 2023, Vienna International Centre and Austrian Academy of Sciences (hybrid)

Planetary Defense Conference 2021

26 - 30 April 2021, WebEx Conference

The 7th IAA Planetary Defense Conference was held as a WebEx conference, hosted by UNOOSA, in cooperation with ESA.

Planetary Defense Conference 2019

29 April - 3 May 2019, Washington D.C. area, United States

The 6th IAA Planetary Defense Conference discussed  Near-Earth Object hazards & deflection measures.
UNOOSA  presented the latest developments in international cooperation in response to NEO threats.

See Press release 

Planetary Defense Conference 2017

15 - 19 May 2017, Tokyo, Japan

UNOOSA, together with JAXA, co-chaired Panel 1 on Key international and political developments at the PDC2017. Live streaming was available.

Open forum on near-Earth Object impact hazards



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