Wednesday5 May 200411:14pm MDT2004-05-06 UTC 0514 back top next  

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


Today's issue status: done
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Cover: Erich Meyer took advantage of last night's lunar eclipse to pick up the dim (mag. 21) and fast-moving 2004 HG12 at Linz Observatory in Austria. Just large enough to be categorized as "potentially hazardous" (JPL H=21.97), it had been reported only once since April 22nd, back on the 27th, and goes out of view this week. Twenty 60-second exposures are stacked on the object's motion, so stars appear here as bumpy streaks.

Details: 2004 HG12. 2004 05 04.84 UT. +21mag. 20x60-sec exposures. Motion 6"/min. Field 11'x16', North up. 0.60m f/3.3 Reflector + CCD. 540.

News briefs – panel 1/1 Major News for 5 May 2004 back top next  
southern New Mexico meteor 1:10am MDT 5 May 2004 
left: from Sandia Labs in Albuquerque, N.M. looking south 
right: from Jim Gamble in El Paso, Texas, looking north
News briefs

Southwest meteor:
All-sky cameras at Sandia National Lab in Albuquerque, N.M. and on Jim Gamble's roof in El Paso, Texas 220 miles (350 km.) due south, both caught a bright meteor at 1:10am this morning. Below is Jim Gamble's composite image of the event in the northwest quadrant of the sky, shot from a camera pointed down at a hemispherical mirror (description). The A/CC-assembled animation has parts of frames from both cameras, reoriented so the left-hand Sandia view

meteor 1:10am MDT 5 May 2004 from 
Jim Gamble in El Paso, Texas

Images courtesy of Sandia National Lab & Jim Gamble

with full Moon looks south (west is right) and the El Paso view looks north (west left). Sandia's Quicktime movie is available (744 Kb), as well as another from 1:56am May 2nd (621 Kb, temporary links).

W. Australia fireball: The Australian Broadcasting Corporation today reports speculation that the April 30th Perth meteor (report) may have landed in the ocean 100 km. west of Geraldton.

Comet C/2001 Q4 (NEAT) from
Desert Eagle Obs. 4 May 2004

Now in northern skies: Bill Yeung caught comet C/2001 Q4 (NEAT) at Desert Eagle Observatory in Arizona "just 10 degrees above SW horizon" at 8pm MST (not MDT) last night. This 3-sec. exposure (18" f/2.8 ST10XME) shows signs of what have been called dust "shells," "waves," or "hoods" in images from the southern hemisphere (see Lovejoy and Masi and Mallia). Clay Sherrod also reported C/2001 Q4 last night from Arkansas by telescope and binoculars. See SpaceWeather.com finder chart and a Space.com article today.

Risk monitoring - panel 1/1 Major News for 5 May 2004 back top next  
Risk monitoring 5 May

As with yesterday, no objects with impact solutions are reported in today's Daily Orbit Update MPEC.

Summary Risk Table - sources checked at 1743 UTC, 5 May

Object

Assessment

Years

VI
PS
cum
PS
max
T
S
Arc 
days
 2004 HZ NEODyS 5/22023-20454-2.39-2.39011.973
JPL 5/22023-20333-2.44-2.44011.973
 2004 HQ1JPL 5/3R E M O V E D
 NEODyS 5/32065-20792-6.23-6.25013.387
 2004 HMJPL 4/292101-21042-5.05-5.05010.990
 2004 HE62JPL 5/3R E M O V E D
 NEODyS 5/32036-20642-4.71-4.8106.168
 2004 GE2JPL 4/242100-21001-6.02-6.02011.811
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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