Tuesday19 October 20042:23pm MDT2004-10-19 UTC 2023 last
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News briefs

Meteor news:  Australian Broadcasting has an item today about the Desert Fireball Network on the Nullarbor Plain that will employ a network of all-sky cameras to collect fireball orbital data and to locate any surviving meteorites, with the intent being to trace these samples back to specific asteroids.

National Geographic has an article from yesterday about this week's peak in the annual Orionid meteor shower.

Bits & pieces:  The journal Nature has an article from yesterday, “Unseen comets may raise impact risk for Earth,” which is its second on a controversial theory about the existence of ultra-dark objects in the outer Solar System (see news thread, “Bits & pieces”).

News.com.au has an article today from The Australian about access in Australian schools to the Charles Sturt University (CSU) robotic telescope at Bathurst Observatory in New South Wales using a 12-km. (7.5-mile) wireless connection. See also a 12 October

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CSU news release. The observatory also has radio telescopes and a radio meteor detector.

Rosetta news:  The Rosetta mission has a status report from yesterday for 8-15 October telling that “the last block of Lander commissioning activities was completed successfully,” but final commissioning for the comet orbiter's ROSINA spectrometer was cancelled while the instrument is investigated. During the period “the spacecraft spent most of the time in contact with the ground, using DSN passes during the day and New Norcia during the night” to permit “an intense and ambitious operations plan.”

Risk monitoring - panel 1/1 Major News for 19 Oct. 2004 previous
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Risk monitoring yesterday 19 Oct. tomorrow

The Tuesday Daily Orbit Update MPEC has observation of 2004 UE from early yesterday from LINEAR in New Mexico and last night from Great Shefford Observatory in England. Today NEODyS joined JPL in posting this object, while JPL lowered its risk assessment.

Summary Risk Table - sources checked at 1927 UTC, 19 Oct

Object

Assessment

Years

VI
PS
cum
PS
max
T
S
Arc 
days
 2004 UEJPL 10/192027-21003-5.37-5.6702.630
 NEODyS 10/192027-20642-5.43-5.5502.63
 2004 TD18JPL 10/182093-21037-5.96-6.2404.071
 2004 RQ252 NEODyS 10/132017-20171-6.92-6.92022.778
JPL 10/3R E M O V E D
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.
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