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Sunday21 December 20038:06pm MST2003-12-22 UTC 0306
Today's news about Asteroids, Comets & Meteors
Page status: done, updated 2x
  • Risk monitoring – NEODyS removes 2003 XM & 2003 YP1 & JPL posts 2003 YT1
Risk monitoring 21 Dec.

The Sunday Daily Orbit Update MPEC (DOU) carries observations of 2003 XM and 2003 YP1 from Pla D'Arguines Observatory early yesterday in Spain, and today NEODyS removed its last impact solution for each of these objects. JPL eliminated YP1 yesterday and today slightly lowered the ratings on its one solution for XM.

2003 YT1 isn't reported in the DOU, but the Minor Planet Center's Last Observation page is showing that Jornada Observatory caught it this morning in New Mexico.

Update at 1940 UTC:  NEODyS has updated its 2003 YT1 assessment with new observations received ahead of tomorrow's DOU, bringing its initial count of impact solutions down from 33 in the years 2052-80 to just one in 2017.

Summary Risk Table - sources checked at 0236 UTC, 22 Dec

Object

Assessment

Years

VI
PS
cum
PS
max
T
S
Arc 
days
 2003 YT1JPL 12/222017-210122-1.65-2.1902.654
 NEODyS 12/212017-20171-3.93-3.9302.654
 2003 YP1NEODyS 12/21R E M O V E D
JPL 12/20R E M O V E D
 2003 XMNEODyS 12/21R E M O V E D
JPL 12/212059-20591-4.51-4.51016.835
VI = count of "virtual impactors" (impact solutions)
See A/CC's Consolidated Risk Tables for more and maybe
  newer details, and check the monitors' links for latest info.
Note that only objects recently in view are shown here.

Update at 0306 UTC:  JPL has posted 2003 YT1 with impact solutions within and beyond the NEODyS time horizon.

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