Communication Dans Un Congrès Année : 2017

Short arc orbit determination and Gaia alerts

Résumé

Since October 2016, the short term (ST) processing of Solar System Objects (SSOs) by Gaia is up and running, and it has produced almost 600 alerts. A crucial point in the chain is the possibility of performing a short arc orbit determination as soon as the object has been detected, which allows the follow up of the object from the ground.The method we present has been recentely developed for two mainreasons: 1) search for imminent impactors within the NEO - Confirmation Page(imminent impactors are asteroids that could impact the Earth infew days from their discovery) 2) validation of the SSO-ST Gaia pipeline.We show some good confirmations on objects that could have been discovered by Gaia, and some properties of the Gaia astrometry for the short term.

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Dates et versions

hal-03733971 , version 1 (21-07-2022)

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Federica Spoto, Paolo Tanga, Alessio del Vigna, Benoît Carry, William Thuillot, et al.. Short arc orbit determination and Gaia alerts. AAS/Division for Planetary Sciences Meeting #49, Oct 2017, Provo, UT, United States. ⟨hal-03733971⟩
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