2008-11-28 Tracking News

Contents on 28 November '08

IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- one MPEC
Observers -- thirteen observing facilities
Impact Risk Monitoring -- four 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 28 November '08

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty. There was one listing noted earlier today.

New MPECs on 28 November '08

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 28 Nov. '08 >> MPEC 2008-W80 - "07:09 UT" - Daily Orbit Update

Observations of risk-listed objects
K08W64M 2008 WM64 (arc=3 days, H=20.6 ~257m) from Sandlot Obs. (Nov. 25.48p1 & 27.45-49p2)
K08W63Q 2008 WQ63 (arc=6 days, H=20.1 ~323m) from Great Shefford Obs. (Nov. 28.06-07p3)
K08W61L 2008 WL61 (Q=4.486 AU, arc=2 days, H=19.3 ~467m) from Astronomical Research Obs. (ARO) (Nov. 26.01-02p3)
K08W13Z 2008 WZ13 (arc=8 days, H=18.8 ~589m) from ARO (Nov. 26.12-13p4) and Great Shefford Obs. (Nov. 28.08-09p2)
Observations of recently (no longer) risk-listed objects
K08W59B 2008 WB59 (arc=4 days, H=19.4 ~446m) from ARO (Nov. 26.26-27p5) and Petit Jean Mtn. South Obs. (PJMSO) (Nov. 27.38-39p7)
K08W32Y 2008 WY32 (small asteroid, arc=4 days, H=22.3 ~117m) from ARO (Nov. 26.05-06p4)
K08W14D 2008 WD14 (small asteroid, arc=6 days, H=22.7 ~98m) from ARO (Nov. 26.02-03p5) and the Siding Spring Survey (SSS) (Nov. 27.47p5)
K08W14A 2008 WA14 (small asteroid, arc=8 days, H=23.0 ~85m) from ARO (Nov. 26.10-11p3) and Guidestar Obs. (Nov. 27.81-84p3)
K08W01P 2008 WP1 (arc=7 days, H=20.3 ~295m) from ARO (Nov. 26.04-05p3)
K08W00L 2008 WL (almost small, Q=4.498 AU, arc=8 days, H=21.8 ~148m) from ARO (Nov. 26.39-40p4)
K08W00C 2008 WC (small asteroid, arc=8 days, H=26.5 ~17m) from ARO (Nov. 26.41-42p3)
K08U94Z 2008 UZ94 (arc=30 days, H=17.7 ~977m) from PJMSO (Nov. 27.04-05p6)
K08U07E 2008 UE7 (arc=32 days, H=20.4 ~282m) from GiaGa Obs. (Nov. 26.01-03p2 & 26.96-98p2), ARO (Nov. 26.15-16p4), Peschiera del Garda Obs. (Nov. 26.95-99p4), PJMSO (Nov. 27.36p6), and Tradate Obs. (Nov. 27.88-89p2)
Observations of small asteroids (H>22.0)
K08W61M 2008 WM61 (arc=4 days, H=26.7 ~15m) from ARO (Nov. 26.12-13p4) and Great Shefford Obs. (Nov. 28.06p3)
K08W60K 2008 WK60 (arc=4 days, H=22.4 ~112m) from SSS (Nov. 27.55p2)
K08W14G 2008 WG14 (arc=7 days, H=24.6 ~41m) from Alter Satzberg Obs. (Nov. 27.88-90p3)
K08W00K 2008 WK (arc=9 days, H=23.2 ~78m) from ARO (Nov. 26.26p4) and PJMSO (Nov. 27.41-45p13)
K08U05T 2008 UT5 (arc=32 days, H=24.5 ~43m) from ARO (Nov. 26.29p3)
Observations of other objects
K08W64L 2008 WL64 (i=42.2°, q=0.366 AU, arc=4 days, H=18.5 ~676m) from Alter Satzberg Obs. (Nov. 27.79-84p5)
K08W61K 2008 WK61 (arc=7 days, H=20.5 ~269m) from Great Shefford Obs. (Nov. 28.10p3)
K08W60L 2008 WL60 (arc=4 days, H=18.0 ~851m) from PJMSO (Nov. 27.40-41p7)
K08W60H 2008 WH60 (arc=5 days, H=20.6 ~257m) from Alter Satzberg Obs. (Nov. 27.71-77p5), Guidestar Obs. (Nov. 27.74-75p3), and Madonna di Dossobuono Obs. (Nov. 27.84-85p3)
K08W32M 2008 WM32 (i=39.1°, arc=5 days, H=19.8 ~371m) from ARO (Nov. 26.28p4)
K08W02N 2008 WN2 (arc=34 days, H=20.8 ~234m) from PJMSO (Nov. 27.32-33p6)
K08V14K 2008 VK14 (arc=19 days, H=19.2 ~490m) from ARO (Nov. 26.40-41p5) and PJMSO (Nov. 27.43-44p6)
K08V04U 2008 VU4 (Q=4.226 AU, arc=20 days, H=17.4 ~1.12 km) from Tradate Obs. (Nov. 27.85-86p2)
K08V00F 2008 VF (arc=26 days, H=19.6 ~407m) from GiaGa Obs. (Nov. 26.93-95p2)
K08U07F 2008 UF7 (arc=31 days, H=19.1 ~513m) from ARO (Nov. 26.07-08p3)
K08S82H 2008 SH82 (arc=62 days, H=21.1 ~204m) from PJMSO (Nov. 27.07-08p6)
K08S07V 2008 SV7 (arc=63 days, H=21.6 ~162m) from ARO (Nov. 26.43p3)
K08S01Q 2008 SQ1 (Q=4.682 AU, arc=2 opp, H=18.5 ~676m) from Peschiera del Garda Obs. (Nov. 26.81-84p4) and Madonna di Dossobuono Obs. (Nov. 27.86p3)
K08R98G 2008 RG98 (arc=79 days, H=17.2 ~1.23 km) from PJMSO (Nov. 27.09p5)
K08R26S 2008 RS26 (Q=4.801 AU, arc=86 days, H=17.9 ~891m) from SSS (Nov. 27.46p2)
K08R24Y 2008 RY24 (arc=3 opp, H=17.8 ~933m) from PJMSO (Nov. 27.06-07p6)
K08Q03T 2008 QT3 (arc=94 days, H=18.6 ~645m) from PJMSO (Nov. 27.05-06p5)
K08M01R 2008 MR1 (arc=3 opp, H=18.4 ~708m) from Peschiera del Garda Obs. (Nov. 26.87-91p4)
K08M00Z 2008 MZ (Q=4.207 AU, arc=165 days, H=18.6 ~645m) from PJMSO (Nov. 27.37-38p6)
K06SL7Z 2006 SZ217 (arc=3 opp, H=17.3 ~1.17 km) from PJMSO (Nov. 27.36-37p5)
K05T51Z 2005 TZ51 (arc=3 opp, H=17.9 ~891m) from PJMSO (Nov. 27.15p5)
K05E00Y 2005 EY (q=0.278 AU, Q=4.764 AU, arc=3 opp, H=17.3 ~1.17 km) from ARO (Nov. 26.45-47p3)
K03W25X 2003 WX25 (Q=4.606 AU, arc=2 opp, H=18.6 ~645m) from PJMSO (Nov. 27.14p5)
J94A01W 1994 AW1 (arc=3 opp, H=17.6 ~1.02 km) from PJMSO (Nov. 27.03p5)
D8852 138852 2000 WN10 from Tradate Obs. (Nov. 27.83-84p2)
D7799 137799 1999 YB from Naef Obs. (Nov. 27.81-84p2)
90403 90403 2003 YE45 from Herrenberg Obs. (Nov. 27.73-76p4)
85236 85236 1993 KH from Herrenberg Obs. (Nov. 27.77-78p8) and Tradate Obs. (Nov. 27.82p2)

Observers on 28 November '08

Thirteen observing facilities appear in today's MPEC.

Code	Observer / observatory
`B03`	Alter Satzberg Obs. in Austria, 3 in MPEC 2008-W80 -- 2008 WL64, 2008 WH60, 2008 WG14
`H55`	Astronomical Research Obs. (ARO) in Illinois, 18 in MPEC 2008-W80 -- 2008 WZ13, 2008 WY32, 2008 WP1, 2008 WM61, 2008 WM32, 2008 WL61, 2008 WL, 2008 WK, 2008 WD14, 2008 WC, 2008 WB59, 2008 WA14, 2008 VK14, 2008 UT5, 2008 UF7, 2008 UE7, 2008 SV7, 2005 EY
`203`	GiaGa Obs. in Italy, 2 in MPEC 2008-W80 -- 2008 VF, 2008 UE7
`J95`	Great Shefford Obs. in England, 4 in MPEC 2008-W80 -- 2008 WZ13, 2008 WQ63, 2008 WM61, 2008 WK61
`A17`	Guidestar Obs. in Germany, 2 in MPEC 2008-W80 -- 2008 WH60, 2008 WA14
`240`	Herrenberg Obs. in Germany, 2 in MPEC 2008-W80 -- 90403, 85236
`560`	Madonna di Dossobuono Obs. in Italy, 2 in MPEC 2008-W80 -- 2008 WH60, 2008 SQ1
`A13`	Naef Obs. in Switzerland, 1 in MPEC 2008-W80 -- 137799
`A53`	Peschiera del Garda Obs. in Italy, 3 in MPEC 2008-W80 -- 2008 UE7, 2008 SQ1, 2008 MR1
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 16 in MPEC 2008-W80 -- 2008 WN2, 2008 WL60, 2008 WK, 2008 WB59, 2008 VK14, 2008 UZ94, 2008 UE7, 2008 SH82, 2008 RY24, 2008 RG98, 2008 QT3, 2008 MZ, 2006 SZ217, 2005 TZ51, 2003 WX25, 1994 AW1
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2008-W80 -- 2008 WM64
`E12`	Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2008-W80 -- 2008 WK60, 2008 WD14, 2008 RS26
`B39`	Tradate Obs. in Italy, 4 in MPEC 2008-W80 -- 2008 VU4, 2008 UE7, 85236, 138852

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

Impact Risk Monitoring on 28 November '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2359 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 WM64	NEODyS	1356	2030-2031	2	6.19e-09	-5.50	-5.70	0	NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2008/11/24.489 to 2008/11/27.491."
2008 WM64	JPL Sentry	1346	2030-2098	10	2.0e-08	-5.38	-5.95	0	JPL: "Analysis based on 11 observations spanning 3.0021 days (2008-Nov-24.48804 to 2008-Nov-27.49011)." Diameter approximately 0.270 km. from mean, weighted H=20.5.

2008 WQ63	NEODyS	1352	R E M O V E D						-
2008 WQ63	JPL Sentry	1346	R E M O V E D						JPL: Risk listing removed at 0954 UTC.

2008 WL61	NEODyS	1352	R E M O V E D						-
2008 WL61	JPL Sentry	1346	R E M O V E D						JPL: Risk listing removed at 1025 UTC.

2008 WZ13	NEODyS	1356	2023-2090	31	1.06e-06	-2.69	-2.93	0	NEODyS: "Based on 34 optical observations (of which 0 are rejected as outliers) from 2008/11/20.276 to 2008/11/28.091."
2008 WZ13	JPL Sentry	1346	2023-2107	65	1.3e-06	-2.64	-2.89	0	JPL: "Analysis based on 34 observations spanning 7.8147 days (2008-Nov-20.27557 to 2008-Nov-28.09031)." Diameter approximately 0.600 km. from mean, weighted H=18.8.

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 28 November '08

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

1503	The NEOCP has become empty
1356	Noted that NEODyS has updated its 2008 WM64 risk assessment - see above Noted that NEODyS has updated its 2008 WZ13 risk assessment - see above
1352	Noted that NEODyS has removed 2008 WL61 as an impact risk - see above Noted that NEODyS has removed 2008 WQ63 as an impact risk - see above
1347	Grabbed MPEC 2008-W80 - Daily Orbit Update - see above
1346	Noted that JPL Sentry has removed 2008 WL61 as an impact risk - see above Noted that JPL Sentry has updated its 2008 WM64 risk assessment - see above Noted that JPL Sentry has removed 2008 WQ63 as an impact risk - see above Noted that JPL Sentry has updated its 2008 WZ13 risk assessment - see above
0140	The NEOCP has become active

http://www.HohmannTransfer.com/mn/08/08333_1128.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).