Contents  on 4 May '08

Resources:

The latest A/CC news is available via framed access, RSS news feed RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.

Navigation tips: Use the << and >> arrows on the menus for each regular section (Observers, Risks, etc.) to move to the previous and next day's news for that section. Use the Index menu item to access specific days through a calendar interface. And use the all-up news archive to access news from any time since A/CC began in early 2002. To keep track of what's new each day, watch the Chronology section.

NEOCP Activity  on 4 May '08

The MPC's NEO Confirmation Page has 6 listings: 6 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had six updated listings. Of these, one was a "one nighter."

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

New MPECs  on 4 May '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2008-J29 - "19:52 UT" - Comet C/2008 J1 (Boattini)


<< DOU on 4 May '08 >>  MPEC 2008-J28 - "06:07 UT" - Daily Orbit Update

Observers  on 4 May '08

A total of 32 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 1 in MPEC 2008-J29 -- C/2008 J1
B03Alter Satzberg Obs. in Austria, 2 in MPEC 2008-J28 -- 2008 JO, 2008 HS3
H55Astronomical Research Obs. (ARO) in Illinois, 15 in MPEC 2008-J28 -- 2008 JQ, 2008 JP, 2008 JO, 2008 JN, 2008 JG, 2008 JC, 2008 HO3, 2008 HJ3, 2008 HH, 2008 HF2, 2008 HE3, 2008 HD2, 2008 HC38, 2008 GU20, 2003 AD1
A81Balzaretto Obs. in Italy, 1 in MPEC 2008-J28 -- 2008 HS3
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2008-J28 -- 2005 AN19
B09Capannoli Obs. in Italy, 3 in MPEC 2008-J28 -- 2008 HW1, 2004 FN32, 1866
703Catalina Sky Survey (CSS) in Arizona, 4 in MPEC 2008-J28 -- 2005 LG8, 2004 CR2, 162173, 1866
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2008-J29 -- C/2008 J1
448Desert Moon Obs. in New Mexico, 7 in MPEC 2008-J28 -- 2008 HE, 2008 HD3, 2008 GB110, 2008 GA110, 2008 DY, 163818, 152889
E10Faulkes Telescope South in New South Wales, 1 in MPEC 2008-J28 -- 2008 HJ
B32Gelenau Obs. in Germany, 1 in MPEC 2008-J28 -- 2008 HW1
H51Greiner Research Obs. in Wisconsin, 1 in MPEC 2008-J28 -- 2008 HS3
379Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2008-J28 -- 2008 DE, 2005 NB7
A35Hormersdorf Obs. in Germany, 2 in MPEC 2008-J28 -- 2008 JJ, 2004 FN32
682Kanab Obs. in Utah, 1 in MPEC 2008-J29 -- C/2008 J1
704LINEAR in New Mexico, 4 in MPEC 2008-J28 -- 2008 JQ, 54789, 53789, 163693
E17Leura Obs. in New South Wales, 1 in MPEC 2008-J28 -- 142040
560Madonna di Dossobuono Obs. in Italy, 4 in MPEC 2008-J28 -- 2008 HJ3, 2008 FN6, 2008 AE, 2005 GG
900Moriyama Obs. in Japan, 1 in MPEC 2008-J29 -- C/2008 J1
474Mt. John Obs. in New Zealand, 4 in MPEC 2008-J28 -- 2008 JN, 2008 HV4, 2008 HU4, 2008 FK7
G96Mt. Lemmon Survey (MLS) in Arizona, 4 in MPEC 2008-J28 -- 2008 FN6, 2007 AE12, 2005 GE59, 2002 RU25
A13Naef Obs. in Switzerland, 2 in MPEC 2008-J28 -- 2008 HW1, 2008 HF2
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 13 in MPEC 2008-J28 -- 2008 HW1, 2008 HS3, 2008 DE, 2008 CP23, 2007 VR183, 2007 VQ4, 2006 BG55, 2005 SE71, 2005 NB7, 2003 GW, 2002 JC, 1999 SO5, 35107
204Schiaparelli Obs. in Italy, 4 in MPEC 2008-J28 -- 2008 GV3, 2008 GJ110, 2008 GD110, 137170
E12Siding Spring Survey (SSS) in New South Wales, 5 in MPEC 2008-J28 -- 2002 FW5, 2001 QC34, 172034, 153591, 112985
510Siegen Obs. in Germany, 1 in MPEC 2008-J29 -- C/2008 J1
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2008-J28 -- 2008 GW20
291Spacewatch 1.8m telescope in Arizona, 9 in MPEC 2008-J28 -- 2008 HY37, 2008 HS3, 2008 HR3, 2008 HO3, 2008 HE3, 2008 HC2, 2008 HA2, 2008 GE110, 2008 EV5
A78Stia Obs. in Italy, 3 in MPEC 2008-J28 -- 2008 HW1, 2008 HS3, 2008 HE2
F85Tiki Obs. in Tahiti, 2 in MPEC 2008-J28 -- 2008 JO, 2008 FK7
198Wildberg Obs. in Germany, 2 in MPEC 2008-J28 -- 2005 TU45, 2002 JC
367Yatsuka Obs., 1 in MPEC 2008-J29 -- C/2008 J1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 4 May '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2354 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2008 JPNEODyS12432013-2090635.63e-09-6.25-6.870NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2008/05/02.207 to 2008/05/03.244."
2008 HC38NEODyS12432029-206624.71e-08-7.38-7.380NEODyS: "Based on 25 optical observations (of which 1 are rejected as outliers) from 2008/04/30.299 to 2008/05/03.276."
2008 HU4NEODyS12432040-2086175.39e-05-6.25-6.530NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2008/04/30.325 to 2008/05/03.671."
2008 HO3NEODyS1241R E M O V E D-
2008 HE3NEODyS1243204911.53e-11-8.17-8.170NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2008/04/28.264 to 2008/05/03.343."
2008 HJNEODyS12432077-208845.1e-05-4.95-4.960NEODyS: "Based on 79 optical observations (of which 1 are rejected as outliers) from 2008/04/24.248 to 2008/04/30.377."

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology  on 4 May '08

Times are UTC for when items were noted or added by The Tracking News.

1958Grabbed MPEC 2008-J29 - Comet C/2008 J1 (Boattini) - see above
1243Noted that NEODyS has updated its 2008 HC38 risk assessment - see above
Noted that NEODyS has updated its 2008 HE3 risk assessment - see above
Noted that NEODyS has updated its 2008 HJ risk assessment - see above
Noted that NEODyS has updated its 2008 HU4 risk assessment - see above
Grabbed MPEC 2008-J28 - Daily Orbit Update - see above
1241Noted that NEODyS has removed 2008 HO3 as an impact risk - see above
Noted that NEODyS has posted 2008 JP as an impact risk - see above