Our Mission

IAWN was established (2013) to create an international group of organizations involved in detecting, tracking, and characterizing NEOs. The IAWN is tasked with developing a strategy using well-defined communication plans and protocols to assist Governments in the analysis of asteroid impact consequences and in the planning of mitigation responses.

Currently, IAWN includes members from Europe, Asia, South and North America.

About IAWN

NEO News

Višnjan Observatory

Višnjan Observatory
Courtesy: Višnjan Observatory

Welcoming Višnjan Observatory to IAWN

(Nov 2018) Višnjan Observatory (VO), Tican joins IAWN, with telescope facilities for survey, follow-up and physical characterisation of minor planets in the Solar System. VO has more than 25 years of asteroid observing, discovery and follow-up (MPC code 120 and newly allocated MPC code L01).

Read More: Welcome New Members

IAWN 101

orbit graphic showing (1862) Apollo on 29 Nov

Orbit and position of (1862) Apollo, the first PHA, on 29 Nov 2018
Credit: Asteroid Orbit View, Dave Rankin

What is a PHA?

(Nov 2018)

A handful of recent popular press articles have used the term 'potentially hazardous object' or PHA to describe a specific type of NEO. While the name carries with it a bit of sinister connotation, the truth is nearly all objects in this category are not 'hazardous' at all! The term PHA was introduced by...

Read More: What is a PHA?

Close Approaches

Asteriod designation: 2018 XA4
Discovery station: Mt. Lemmon Survey
Close approach date (UTC): 2018 12 11.66
Close approach distance (× lunar distance): 0.97
Discovery announcement
Latest orbit & observations

Close Aproach List

Multi-Opp. CAs