Evidence for 2009 WN25 being the parent body of the November i-Draconids (NID)

TL;DR

This study suggests that the Amor-type asteroid 2009 WN25 is the likely parent body of the weak November i-Draconids meteoroid stream, based on orbit modeling and observational follow-up.

Contribution

It provides the first evidence linking 2009 WN25 to the NID stream through orbit analysis and dust ejection modeling.

Findings

2009 WN25's orbit matches the NID stream properties

Ground-based astrometry confirmed the asteroid's orbit

Dust ejection models support the parent body association

Abstract

In this work we propose the Amor-type asteroid 2009 WN25 as the likely progenitor of the November i-Draconids (NID, IAU#392), a recently detected weak annual meteoroid stream. We first describe our recovery and follow-up effort to obtain timely ground based astrometry with large aperture telescopes, and ensure that 2009 WN25 would not become lost. We then discuss the possible parent-stream association, using its updated orbit to model the ejection of dust particles from the surface of the parent body and match the observed properties of the stream.