2008-06-12 Tracking News

Contents on 12 June '08

IAU Minor Planet Center
- NEOCP Activity -- two listings: 2 updated
- New MPECs -- one MPEC
Observers -- ten observing facilities
Impact Risk Monitoring -- five objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
Old & new CRT Archive
Old News Archive & Small Objects Archive

The latest A/CC news is available via framed access, 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 12 June '08

The MPC's NEO Confirmation Page has 2 listings: 2 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two updated listings. Both of these were "one nighters."

New MPECs on 12 June '08

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 12 June '08 >> MPEC 2008-L49 - "06:09 UT" - Daily Orbit Update

Observations of risk-listed objects
K08L08W 2008 LW8 (arc=2 days, H=17.3 ~1.17 km) from Great Shefford Obs. (June 11.06p3)
K08L02G 2008 LG2 (small asteroid, arc=8 days, H=25.4 ~28m) from Astronomical Research Obs. (ARO) (June 11.10p3)
K08L00A 2008 LA (small asteroid, arc=10 days, H=23.2 ~78m) from the Spacewatch 1.8m telescope (June 11.23p2)
K08K11N 2008 KN11 (small asteroid, arc=12 days, H=23.2 ~78m) from ARO (June 11.23p4) and the Spacewatch 0.9m telescope (June 11.37-41p3)
Observations of recently (no longer) risk-listed objects
K08K05Z 2008 KZ5 (arc=13 days, H=20.0 ~339m) from ARO (June 11.21-22p3) and Spacewatch 1.8m (June 11.27-28p3)
Observations of small asteroids (H>22.0)
K08J14R 2008 JR14 (arc=36 days, H=25.0 ~34m) from ARO (June 11.18-23p3 at V=22.7-8)
K08E07Q 2008 EQ7 (arc=97 days, H=22.6 ~102m) from ARO (June 11.27-28p3)
Observations of other objects
K08K28V 2008 KV28 (arc=11 days, H=20.3 ~295m) from Spacewatch 1.8m (June 11.24-25p3 at V=21.6-22.1)
K08K02W 2008 KW2 (i=37.4°, arc=14 days, H=19.7 ~389m) from ARO (June 11.17-18p4)
K08K02V 2008 KV2 (arc=14 days, H=21.4 ~178m) from ARO (June 11.16-17p3)
K08J35T 2008 JT35 (Q=4.084 AU, arc=37 days, H=21.0 ~214m) from Atlante Obs. (June 10.91-92p3) and Petit Jean Mtn. South Obs. (PJMSO) (June 11.23-24p7)
K08J19V 2008 JV19 (arc=34 days, H=20.7 ~245m) from ARO (June 11.12-14p3)
K08J14P 2008 JP14 (arc=41 days, H=19.4 ~446m) from ARO (June 11.16p3)
K08J07Z 2008 JZ7 (Q=4.377 AU, arc=37 days, H=18.6 ~645m) from ARO (June 11.11p3)
K08J00G 2008 JG (arc=41 days, H=20.9 ~224m) from ARO (June 11.19-20p3)
K08H03S 2008 HS3 (arc=41 days, H=21.7 ~155m) from the Catalina Sky Survey (CSS) (June 10.34-36p4)
K08F05W 2008 FW5 (arc=75 days, H=21.5 ~170m) from ARO (June 11.12-16p3 at V=22.7-23.0)
K07M13K 2007 MK13 (arc=2 opp, H=19.9 ~355m) from CSS (June 11.19-20p4)
K07L00L 2007 LL (arc=2 opp, H=20.5 ~269m) from Ametlla del Valles Obs. (June 11.05-07p17)
K06O10Y 2006 OY10 (arc=3 opp, H=18.7 ~616m) from David Tholen's team on Mauna Kea (May 22.26-27p3 at R=23.8)
K04T18B 2004 TB18 (arc=2 opp, H=17.7 ~977m) from Spacewatch 0.9m (June 11.43-44p2)
K03O00U 2003 OU (i=40.0°, arc=4 opp, H=16.6 ~1.62 km) from Tiki Obs. (2007 April 7.60-61p2)
K00AK5D 2000 AD205 (arc=2 opp, H=18.6 ~645m) from Atlante Obs. (June 10.95-96p3) and PJMSO (June 11.25-26p6)
J99G05Y 1999 GY5 (arc=3 opp, H=20.0 ~339m) from ARO (June 11.24-27p3 at V=22.2-3)
I4990 184990 2006 KE89 from CSS (June 11.23-25p4)
D7170 137170 1999 HF1 from PJMSO (June 11.25p5)
85709 85709 1998 SG36 from CSS (June 11.16p4)
35107 35107 1991 VH from CSS (June 11.36-37p4)
01980 1980 Tezcatlipoca (1950 LA) from Atlante Obs. (June 11.88-90p3)
01916 1916 Boreas (1953 RA) from CSS (June 11.45-46p4)

Observers on 12 June '08

Ten observing facilities appear in today's MPEC.

Code	Observer / observatory
`B37`	Ametlla del Valles Obs. in Spain, 1 in MPEC 2008-L49 -- 2007 LL
`H55`	Astronomical Research Obs. (ARO) in Illinois, 13 in MPEC 2008-L49 -- 2008 LG2, 2008 KZ5, 2008 KW2, 2008 KV2, 2008 KN11, 2008 JZ7, 2008 JV19, 2008 JR14, 2008 JP14, 2008 JG, 2008 FW5, 2008 EQ7, 1999 GY5
`J51`	Atlante Obs. in the Canary Islands, 3 in MPEC 2008-L49 -- 2008 JT35, 2000 AD205, 1980
`703`	Catalina Sky Survey (CSS) in Arizona, 6 in MPEC 2008-L49 -- 2008 HS3, 2007 MK13, 85709, 35107, 184990, 1916
`J95`	Great Shefford Obs. in England, 1 in MPEC 2008-L49 -- 2008 LW8
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-L49 -- 2006 OY10
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPEC 2008-L49 -- 2008 JT35, 2000 AD205, 137170
`691`	Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2008-L49 -- 2008 KN11, 2004 TB18
`291`	Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2008-L49 -- 2008 LA, 2008 KZ5, 2008 KV28
`F85`	Tiki Obs. in Tahiti, 1 in MPEC 2008-L49 -- 2003 OU

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 12 June '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2358 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 LW8	JPL Sentry	1919	R E M O V E D						JPL: Risk listing removed at 0850 UTC.

2008 LG2	NEODyS	1924	2075-2089	6	4.83e-07	-6.85	-7.18	0	NEODyS #2 for the day: "Based on 80 optical observations (of which 0 are rejected as outliers) from 2008/06/03.318 to 2008/06/11.105."
2008 LG2	JPL Sentry	1919	2038-2105	19	8.8e-06	-5.56	-6.05	0	JPL: "Analysis based on 80 observations spanning 7.7873 days (2008-Jun-03.31737 to 2008-Jun-11.104715)." Diameter approximately 0.029 km. from mean, weighted H=25.4.

2008 LD	NEODyS	0759	2054-2090	34	2.41e-05	-6.81	-7.46	0	NEODyS: "Based on 27 optical observations (of which 1 are rejected as outliers) from 2008/06/02.292 to 2008/06/10.325."

2008 LA	NEODyS	1923	2037-2088	22	3.31e-05	-3.75	-4.13	0	NEODyS: "Based on 53 optical observations (of which 0 are rejected as outliers) from 2008/06/01.170 to 2008/06/11.233."
2008 LA	JPL Sentry	1919	2027-2107	22	3.3e-05	-3.76	-4.14	0	JPL: "Analysis based on 53 observations spanning 10.063 days (2008-Jun-01.16922 to 2008-Jun-11.23216)." Diameter approximately 0.076 km. from mean, weighted H=23.2.

2008 KN11	NEODyS	1924	2037-2046	6	5.54e-07	-5.18	-5.49	0	NEODyS: "Based on 90 optical observations (of which 0 are rejected as outliers) from 2008/05/30.335 to 2008/06/11.409."
2008 KN11	JPL Sentry	1919	2037-2046	4	5.5e-07	-5.19	-5.53	0	JPL: "Analysis based on 90 observations spanning 12.073 days (2008-May-30.33435 to 2008-Jun-11.40781)." Diameter approximately 0.077 km. from mean, weighted H=23.2.

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 12 June '08

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

1924	Noted that NEODyS has updated its 2008 KN11 risk assessment - see above Noted that NEODyS has updated its 2008 LG2 risk assessment - see above
1923	Noted that NEODyS has updated its 2008 LA risk assessment - see above
1919	Noted that JPL Sentry has updated its 2008 KN11 risk assessment - see above Noted that JPL Sentry has updated its 2008 LA risk assessment - see above Noted that JPL Sentry has updated its 2008 LG2 risk assessment - see above Noted that JPL Sentry has removed 2008 LW8 as an impact risk - see above
0759	Noted that NEODyS has updated its 2008 LD risk assessment - see above Noted that NEODyS has updated its 2008 LG2 risk assessment - see above
0757	Grabbed MPEC 2008-L49 - Daily Orbit Update - see above

http://www.HohmannTransfer.com/mn/08/08164_0612.htm
Publisher information, privacy statement, and disclaimer.
This page is © Copyright 2008 Columbine, Inc. - All Rights Reserved
Any mentioned trademarks are the property of their respective owners.
Various tabular formats and data used on this page are acknowledged as belonging to JPL, MPC, NEODyS, and/or others.
Do NOT copy, mirror, or embed this page, but you are welcome to link to it, and you may embed the RSS news feed. All information here is subject to very frequent change during the day of news compilation. Individuals may make copies for their own private, non-commercial use. Please report broken links or other problems with this page to <webmaster@hohmanntransfer.com> (HTML 4.01 validation).
Important news updates are flagged by A/CC's RSS news feed (link).