2008-06-01 Tracking News

Contents on 1 June '08

IAU Minor Planet Center
- NEOCP Activity -- five listings: 1 new, 4 updated
- New MPECs -- two MPECs
Observers -- 20 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

NOTE: These news page will update less often and at sometimes irregular intervals from May 31st through approximately June 7th.

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 1 June '08

The MPC's NEO Confirmation Page has 5 listings: 1 new, 4 updated

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new and four updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of six objects listed on the NEOCP at some point today.

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 1 June '08

Minor Planet Electronic Circulars

As of last check at 2355 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-L01 time-stamped "02:18 UT" - 2008 KB12 - see below
MPEC 2008-L02 time-stamped "06:08 UT" - Daily Orbit Update

<< DOU on 1 June '08 >> MPEC 2008-L02 - "06:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K08K11N 2008 KN11 (small asteroid, arc=1 day, H=23.0 ~85m) from Desert Moon Obs. (May 31.27-32p3)
K08K06F 2008 KF6 (small asteroid, arc=1 day, H=23.5 ~68m) from Ovidiu Vaduvescu via Cerro Tololo Inter-American Obs. (CTIO) (May 31.23-24p10) and the Siding Spring Survey (SSS) (May 31.55-56p2)
K08K05Z 2008 KZ5 (arc=3 days, H=19.9 ~355m) from Kanab Obs. (May 30.37p1 & 30.41p1), the Mt. Lemmon Survey (MLS) (May 31.34-36p4), Jim Bedient via Faulkes Telescope North (May 31.37-39p3), and Eschenberg Obs. (May 31.91-92p2)
K08K00T 2008 KT (small asteroid, arc=4 days, H=28.2 ~8m) from Jim Young via Table Mtn. Obs. (June 1.18-20p4)
K08K00O 2008 KO (small asteroid, arc=4 days, H=24.4 ~45m) from Greiner Research Obs. (GRO) (May 31.26p6)
Observations of recently (no longer) risk-listed objects
K08K02X 2008 KX2 (small asteroid, arc=2 days, H=24.7 ~39m) from Great Shefford Obs. (May 31.04-05p2)
K08H38B 2008 HB38 (arc=31 days, H=21.1 ~204m) from Desert Moon Obs. (May 31.20-24p3)
Observations of other objects
K08K05Y 2008 KY5 (q=1.833 AU, arc=2 days, H=16.8 ~1.48 km) from MLS (May 31.22-23p4)
K08K02W 2008 KW2 (i=37.4°, arc=3 days, H=19.6 ~407m) from Vaduvescu/CTIO (May 31.24-25p9)
K08K02V 2008 KV2 (arc=3 days, H=21.5 ~170m) from Vaduvescu/CTIO (May 31.22-23p10)
K08K00P 2008 KP (i=62.1°, q=0.232 AU, arc=3 days, H=18.8 ~589m) from Tiki Obs. (May 28.37p1 & 28.44p1)
K08J14P 2008 JP14 (arc=31 days, H=19.4 ~446m) from Eschenberg Obs. (May 31.87-88p7)
K08H03S 2008 HS3 (arc=32 days, H=21.7 ~155m) from Green Island Obs. (May 30.79p1 & 30.84p1), Petit Jean Mtn. South Obs. (PJMSO) (May 31.29-30p7), and Eschenberg Obs. (May 31.86-87p7)
K08E69C 2008 EC69 (Q=4.458 AU, arc=2 opp, H=17.2 ~1.23 km) from Vaduvescu/CTIO (May 31.39p9)
K08B22C 2008 BC22 (arc=139 days, H=19.7 ~389m) from Boambee Obs. (May 25.38-39p2)
K08B18T 2008 BT18 (arc=3 opp, H=18.2 ~776m) from Mirasteilas Obs. (May 31.89-91p3)
K07X16H 2007 XH16 (arc=175 days, H=19.7 ~389m) from Mirasteilas Obs. (May 31.95-01p3)
K07VI3R 2007 VR183 (Q=4.353 AU, arc=259 days, H=17.5 ~1.07 km) from Green Island Obs. (May 30.78p1 & 30.83p1)
K07V04Q 2007 VQ4 (arc=3 opp, H=16.1 ~2.04 km, q=1.271 AU) from Green Island Obs. (May 30.78p1 & 30.83p1)
K06H29R 2006 HR29 (arc=3 opp, H=20.7 ~245m) from MLS (May 31.31-33p4)
K05T45U 2005 TU45 (arc=3 opp, H=17.1 ~1.29 km) from PJMSO (May 31.30-32p6)
K05O03G 2005 OG3 (arc=2 opp, H=19.7 ~389m) from the Spacewatch 1.8m telescope (May 31.35-36p3 at V=22.7)
K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from Stonegate Obs. (May 6.12-16p4 & 6.23-26p4), PJMSO (May 31.25-29p6), Eschenberg Obs. (May 31.88p3), and Naef Obs. (May 31.89-93p2)
K05G21O 2005 GO21 (arc=3 opp, H=16.4 ~1.78 km) from Boambee Obs. (May 31.34-37p3)
K05C41F 2005 CF41 (arc=2 opp, H=18.5 ~676m) from PJMSO (May 31.34-36p5)
K04S00X 2004 SX (arc=2 opp, H=19.0 ~537m) from Spacewatch 1.8m (May 31.28-29p3)
K03N06Z 2003 NZ6 (arc=4 opp, H=19.0 ~537m) from Desert Moon Obs. (May 31.37-40p3)
K02J00C 2002 JC (i=40.9°, arc=6 opp, H=17.3 ~1.17 km) from Green Island Obs. (May 30.77p1 & 30.82p2)
K00AK5D 2000 AD205 (arc=2 opp, H=18.7 ~616m) from PJMSO (May 31.24-25p6), Desert Moon Obs. (May 31.35-36p5), Eschenberg Obs. (May 31.85-86p9), and Naef Obs. (May 31.90-93p2)
39572 39572 1993 DQ1 from Boambee Obs. (May 31.34-37p3)
24445 24445 2000 PM8 from MLS (May 31.27-29p4)
21088 21088 1992 BL2 from Boambee Obs. (May 31.34-37p3)
11398 11398 1998 YP11 from PJMSO (May 31.33-34p5)
07482 7482 1994 PC1 from MLS (May 31.42-43p3)
03691 3691 Bede (1982 FT) from Boambee Obs. (May 31.35-36p2)

MPEC 2008-L01 - "02:18 UT" - 2008 KB12

K08K12B 2008 KB12 (Q=4.783 AU, H=21.4 ~178m) was discovered at 2252 UT on 29 May by Andrushivka Obs., which observed it at May 29.95-97p9 and 31.84-85p5. The discovery was confirmed by Eschenberg Obs. (May 31.89p3) and CEAMIG-REA (June 1.07p3).

Observers on 1 June '08

A total of 20 observing facilities appear in today's MPECs.

Code	Observer / observatory
`A50`	Andrushivka Obs. in the Ukraine, 1 in MPEC 2008-L01 -- 2008 KB12
`432`	Boambee Obs. in New South Wales, 5 in MPEC 2008-L02 -- 2008 BC22, 2005 GO21, 39572, 21088, 3691
`I77`	CEAMIG-REA in Brazil, 1 in MPEC 2008-L01 -- 2008 KB12
`807,`	Ovidiu Vaduvescu via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 4 in MPEC 2008-L02 -- 2008 KW2, 2008 KV2, 2008 KF6, 2008 EC69
`448`	Desert Moon Obs. in New Mexico, 4 in MPEC 2008-L02 -- 2008 KN11, 2008 HB38, 2003 NZ6, 2000 AD205
`151`	Eschenberg Obs. in Switzerland, 6 in MPECs 2008-L01 & 2008-L02 -- 2008 KZ5, 2008 KB12, 2008 JP14, 2008 HS3, 2005 NB7, 2000 AD205
`F654`	Jim Bedient in Hawaii via Faulkes Telescope North in Hawaii, 1 in MPEC 2008-L02 -- 2008 KZ5
`J95`	Great Shefford Obs. in England, 1 in MPEC 2008-L02 -- 2008 KX2
`B34`	Green Island Obs. in Cyprus, 4 in MPEC 2008-L02 -- 2008 HS3, 2007 VR183, 2007 VQ4, 2002 JC
`H51`	Greiner Research Obs. in Wisconsin, 1 in MPEC 2008-L02 -- 2008 KO
`682`	Kanab Obs. in Utah, 1 in MPEC 2008-L02 -- 2008 KZ5
`B67`	Mirasteilas Obs. in Switzerland, 2 in MPEC 2008-L02 -- 2008 BT18, 2007 XH16
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 5 in MPEC 2008-L02 -- 2008 KZ5, 2008 KY5, 2006 HR29, 24445, 7482
`A13`	Naef Obs. in Switzerland, 2 in MPEC 2008-L02 -- 2005 NB7, 2000 AD205
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 6 in MPEC 2008-L02 -- 2008 HS3, 2005 TU45, 2005 NB7, 2005 CF41, 2000 AD205, 11398
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2008-L02 -- 2008 KF6
`291`	Spacewatch 1.8m telescope in Arizona, 2 in MPEC 2008-L02 -- 2005 OG3, 2004 SX
`H67`	Stonegate Obs. in Michigan, 1 in MPEC 2008-L02 -- 2005 NB7
`6735`	Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2008-L02 -- 2008 KT
`F85`	Tiki Obs. in Tahiti, 1 in MPEC 2008-L02 -- 2008 KP

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

Impact Risk Monitoring on 1 June '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2355 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 KN11	NEODyS	1310	2031-2063	32	1.18e-05	-3.82	-4.59	0	NEODyS: "Based on 36 optical observations (of which 0 are rejected as outliers) from 2008/05/30.335 to 2008/05/31.390."
2008 KN11	JPL Sentry	1309	2031-2056	26	8.7e-06	-3.92	-4.61	0	JPL: "Analysis based on 36 observations spanning 1.0546 days (2008-May-30.33435 to 2008-May-31.38895)." Diameter approximately 0.083 km. from mean, weighted H=23.1.

2008 KF6	JPL Sentry	1309	R E M O V E D						JPL: Risk listing removed at 0850 UTC.
2008 KF6	NEODyS	1309	R E M O V E D						-

2008 KZ5	NEODyS	1310	2013-2090	25	5.52e-07	-3.70	-4.16	0	NEODyS: "Based on 51 optical observations (of which 1 are rejected as outliers) from 2008/05/29.229 to 2008/05/31.918."
2008 KZ5	JPL Sentry	1309	2013-2107	173	3.0e-06	-3.05	-3.98	0	JPL: "Analysis based on 50 observations spanning 2.6892 days (2008-May-29.22802 to 2008-May-31.91721)." Diameter approximately 0.355 km. from mean, weighted H=19.9.

2008 KT	JPL Sentry	1309	2091-2107	4	2.3e-07	-8.68	-9.08	0	JPL: "Analysis based on 27 observations spanning 3.9508 days (2008-May-28.25417 to 2008-Jun-01.20493)." Diameter approximately 0.008 km. from mean, weighted H=28.2.

2008 KO	JPL Sentry	1309	2049-2061	3	1.4e-06	-5.17	-5.51	0	JPL: "Analysis based on 44 observations spanning 3.8882 days (2008-May-27.3758 to 2008-May-31.26395)." Diameter approximately 0.045 km. from mean, weighted H=24.4.
2008 KO	NEODyS	1309	2049-2061	3	1.38e-06	-5.19	-5.53	0	NEODyS: "Based on 44 optical observations (of which 0 are rejected as outliers) from 2008/05/27.377 to 2008/05/31.265."

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 1 June '08

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

1310	Noted that NEODyS has updated its 2008 KZ5 risk assessment - see above
1309	Noted that JPL Sentry has removed 2008 KF6 as an impact risk - see above Noted that NEODyS has removed 2008 KF6 as an impact risk - see above Noted that JPL Sentry has updated its 2008 KN11 risk assessment - see above Noted that NEODyS has posted 2008 KN11 as an impact risk - see above Noted that JPL Sentry has updated its 2008 KO risk assessment - see above Noted that NEODyS has updated its 2008 KO risk assessment - see above Noted that JPL Sentry has updated its 2008 KT risk assessment - see above Noted that JPL Sentry has updated its 2008 KZ5 risk assessment - see above Grabbed MPEC 2008-L02 - Daily Orbit Update - see above
0450	Grabbed MPEC 2008-L01 - 2008 KB12 - see above

http://www.HohmannTransfer.com/mn/08/08153_0601.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).