Thursday8 July 200411:01pm MDT2004-07-09 UTC 0501 back top next  

The Asteroid/Comet Connection's
daily news journal about
asteroids, comets, and meteors

Today's issue status: done, updated 2x

yesterdayJulytomorrowIndex

Cover: An artistic impression shows the MUSES-C Hayabusa spacecraft approaching 25143 Itokawa (1998 SF36) next June. This half-kilometer-long near-Earth asteroid was the subject of radar observation from Goldstone and Arecibo planned during 17-22 June. It is reported in yesterday's Daily Orbit Update MPEC, and on the radar observations page as observed only June 17th with the 70m antenna at Goldstone in southern California. The illustration, courtesy of JAXA, may have been created before a shape model was available from radar observing during a 23-day period in early 2001 (see the A/CC June 26th cover).

Central U.S. event – panel 1/1 Major News for 8 July 2004 back top next  
Central U.S. event

One or more fireballs about 9:20pm CDT Wednesday (0220 UTC 8 July) have been reported from the south-central U.S. Details so far are sketchy.

New links with video Other new links
  • Tyler, Texas Morning Telegraph 8 July, “Meteor Streaks Across East Texas Skies
    At about 9 p.m., when callers started flooding law enforcement agencies with reports of a fireball in the sky, [a snake got into] a power substation, met an untimely death and plunged areas around Brownsboro and Chandler into darkness for about an hour. 
  • Waco, Texas KWTX-TV 8 July, “Meteor Streaks Across Central Texas Sky
    The meteor was seen going from the southeast to the northwest. 
  • Shreveport, Louisiana KTBS-TV 8 July, “Fire in the sky
    Paul King [was photographing] a distant thunderstorm when he caught the meteor on camera. A camera in a Dallas police car also recorded the fireball. 
Earlier links
News briefs – panel 1/1 Major News for 8 July 2004 back top next  
News briefs

All-sky news:  Cloudbait Observatory in central Colorado has a report of a bright meteor caught by its all-sky camera at 1:43am yesterday (0743 UTC 7 July).

Jim Gamble in El Paso, Texas reports two bright meteors overnight with his all all-sky camera: a V=-9.7 at 11:12pm MDT (0512 UTC 8 July) east of zenith flying due north, and a V=-9.3 west-southwest of zenith flying WSW at 12:03am MDT (0603 UTC 8 July).

Bits & pieces:  Preparations continue for defending Mt. Graham International Observatory from approaching wildfires (see news thread, “Bits & pieces”), but the situation is reported by AP and Reuters today to be improved.

NASA Goddard Space Flight Center has a large set of news materials today about “Spacecraft Fleet Tracks Blast Wave Through Solar System.” Regarding last Fall's record-breaking coronal mass ejections that caused lower-latitude aurora on Earth, it reports a prediction “that within 10 months the boundary

separating our solar system from interstellar space will be pushed as much as 400 million miles farther out as a result of the blast wave.” Space.com has a report today.

NASA Ames Research Center has a news release from yesterday telling that “The Division for Planetary Sciences (DPS) has awarded its 2004 Carl Sagan Medal to NASA scientist Dr. David Morrison [who] is the senior scientist for the NASA Astrobiology Institute, . . . co-author of one of the first textbooks in planetary science, [and] an expert on solar system small bodies.” It notes that “He is responsible for creating NEO News, an e-mail newsletter with about 800 subscribers.”

Risk monitoring - panel 1/1 Major News for 8 July 2004 back top next  
Risk monitoring 8 July

The Thursday Daily Orbit Update MPEC has observation of 2004 MP7 from early yesterday and the day before from Wykrota Observatory in Brazil, and yesterday from Goodricke-Pigott Observatory in Arizona and Reedy Creek Observatory in Queensland, Australia. Today JPL very slightly raised its risk assessment for this object, which is estimated at roughly 150 meters/yards wide.

Summary Risk Table - sources checked at 2359 UTC, 8 Jul

Object

Assessment

Years

VI
PS
cum
PS
max
T
S
Arc 
days
 2004 MP7JPL 7/82087-20871-3.94-3.94011.343
NEODyS 7/1R E M O V E D
 2004 MO7 NEODyS 6/302012-208067-4.34-5.2003.869
JPL 6/302016-208811-4.83-5.4803.869
 2004 ME6JPL 6/282017-209943-5.64-6.3500.873
 NEODyS 6/272044-20637-7.29-7.7600.873
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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