2008-10-12 Tracking News

Contents on 12 October '08

IAU Minor Planet Center
- NEOCP Activity -- seven listings: 7 updated
- New MPECs -- two MPECs
Observers -- fourteen observing facilities
Impact Risk Monitoring -- one object
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 October '08

The MPC's NEO Confirmation Page has 7 listings: 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had seven 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 12 October '08

Minor Planet Electronic Circulars

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

MPEC 2008-T123 time-stamped "06:10 UT" - Daily Orbit Update - see below
MPEC 2008-T124 time-stamped "20:56 UT" - 2007 JJ35

MPEC 2008-T124 - "20:56 UT" - 2007 JJ35

K07J35J 2007 JJ35 (i=56.1°, H=18.4 ~708m) from Astronomical Research Obs. (ARO) (Oct. 10.35-39p3 at V=22.1-3 & 12.30-33p3 at V=22.0-22.1)

<< DOU on 12 Oct. '08 >> MPEC 2008-T123 - "06:10 UT" - Daily Orbit Update

Observations of recently (no longer) risk-listed objects
K08T04C 2008 TC4 (q=0.350 AU, arc=4 days, H=21.4 ~178m) from ARO (Oct. 11.17-18p4)
K08S01U 2008 SU1 (arc=18 days, H=19.1 ~513m) from ARO (Oct. 11.11-12p3)
Observations of small asteroids (H>22.0)
K08T26T 2008 TT26 (arc=2 days, H=23.8 ~59m) from Schiaparelli Obs. (Oct. 10.89-90p3)
K08T09Y 2008 TY9 (arc=3 days, H=24.7 ~39m) from ARO (Oct. 11.18-19p5)
K08T04E 2008 TE4 (arc=4 days, H=24.1 ~51m) from ARO (Oct. 11.09-10p4)
K08T03X 2008 TX3 (arc=5 days, H=25.0 ~34m) from ARO (Oct. 11.24-25p3)
K08T00L 2008 TL (arc=4 days, H=27.5 ~11m) from ARO (Oct. 2.29-31p3)
K08T00J 2008 TJ (arc=1 day, H=26.7 ~15m) from ARO (Oct. 2.26-28p3 at V=21.8-22.2)
K08T00H 2008 TH (arc=7 days, H=25.1 ~32m) from ARO (Oct. 2.19-21p3 at V=21.7-22.1)
K08T00C 2008 TC (arc=2 days, H=23.7 ~62m) from ARO (Oct. 2.09-11p3)
K08SE8G 2008 SG148 (arc=2 days, H=22.5 ~107m) from ARO (Oct. 1.30p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K08T00F 2008 TF (arc=8 days, H=21.8 ~148m) from ARO (Oct. 1.34p3)
K08SE8Y 2008 SY148 (arc=5 days, H=21.8 ~148m) from ARO (Oct. 2.41p3)
K08S01W 2008 SW1 (arc=13 days, H=21.8 ~148m) from ARO (Sept. 26.31-32p6)
Observations of other objects
K08T09K 2008 TK9 (arc=3 days, H=19.8 ~371m) from ARO (Oct. 11.16-17p3)
K08T04D 2008 TD4 (arc=4 days, H=19.6 ~407m) from ARO (Oct. 11.11-12p5)
K08S07V 2008 SV7 (arc=12 days, H=21.6 ~162m) from ARO (Oct. 1.40p3)
K08S07P 2008 SP7 (Q=4.200 AU, arc=16 days, H=19.0 ~537m) from ARO (Oct. 1.38-39p3)
K08S01Q 2008 SQ1 (Q=4.682 AU, arc=2 opp, H=18.2 ~776m) from Tentlingen Obs. (Oct. 10.96-98p2)
K08S01O 2008 SO1 (Q=4.629 AU, arc=18 days, H=19.4 ~446m) from ARO (Sept. 26.35-37p3)
K08S01N 2008 SN1 (Q=4.019 AU, arc=20 days, H=19.5 ~426m) from Stia Obs. (Oct. 10.82-84p4)
K08S00Q 2008 SQ (arc=21 days, H=19.5 ~426m) from ARO (Oct. 1.32-33p3) and Atlante Obs. (Oct. 12.01p3)
K08S00E 2008 SE (arc=22 days, H=19.2 ~490m) from ARO (Oct. 11.26-27p3), Hamamatsu-Yuto Obs. (Oct. 11.57-58p3), and Atlante Obs. (Oct. 12.03-04p3)
K08R80E 2008 RE80 (arc=28 days, H=18.2 ~776m) from ARO (Oct. 1.27-28p3)
K08R26T 2008 RT26 (arc=26 days, H=19.3 ~467m) from ARO (Oct. 1.39p3)
K08R24Z 2008 RZ24 (arc=31 days, H=20.1 ~323m) from ARO (Oct. 1.33p3)
K08R24X 2008 RX24 (arc=25 days, H=21.4 ~178m) from ARO (Oct. 1.26-27p3)
K08R01J 2008 RJ1 (arc=37 days, H=17.8 ~933m) from ARO (Oct. 11.16-18p3)
K08R01G 2008 RG1 (arc=37 days, H=20.8 ~234m) from ARO (Oct. 11.13-15p3)
K08R00V 2008 RV (arc=32 days, H=21.7 ~155m) from ARO (Oct. 1.29p3)
K08Q00Z 2008 QZ (arc=48 days, H=20.4 ~282m) from ARO (Oct. 1.31-32p3)
K08Q00C 2008 QC (arc=52 days, H=20.6 ~257m) from Goodricke-Pigott Obs. (Oct. 10.25-27p3) and ARO (Oct. 11.12-13p3)
K08O08X 2008 OX8 (arc=65 days, H=21.6 ~162m) from ARO (Sept. 26.05-06p2)
K08N00B 2008 NB (arc=92 days, H=19.2 ~490m) from ARO (Oct. 1.43-44p3)
K08M01R 2008 MR1 (arc=3 opp, H=18.4 ~708m) from Mirasteilas Obs. (Oct. 12.00-02p3)
K06G02W 2006 GW2 (arc=2 opp, H=20.3 ~295m) from David Tholen's team on Mauna Kea (Sept. 16.50-51p3 at R=22.0-22.2)
K01U16Z 2001 UZ16 (arc=3 opp, H=19.4 ~446m) from Drebach Obs. (Oct. 11.77p4) and Inastars Obs. (Oct. 11.86-87p4)
J94A01W 1994 AW1 (arc=3 opp, H=17.5 ~1.07 km) from Drebach Obs. (Oct. 11.74p4)
J0491 190491 2000 FJ10 from Goodricke-Pigott Obs. (Oct. 10.34-35p2)
A5140 105140 2000 NL10 from Naef Obs. (Oct. 11.83-86p2)
90403 90403 2003 YE45 from Inastars Obs. (Oct. 11.82p2)
16960 16960 1998 QS52 from Hamamatsu-Yuto Obs. (Oct. 9.52-55p11 & 11.53-54p5) and Ametlla del Valles Obs. (Oct. 10.92p4)
08567 8567 1996 HW1 from Linceo Obs. (Oct. 10.06-08p3)

Observers on 12 October '08

Fourteen observing facilities appear in today's MPECs.

Code	Observer / observatory
`B37`	Ametlla del Valles Obs. in Spain, 1 in MPEC 2008-T123 -- 16960
`H55`	Astronomical Research Obs. (ARO) in Illinois, 32 in MPECs 2008-T123 & 2008-T124 -- 2008 TY9, 2008 TX3, 2008 TL, 2008 TK9, 2008 TJ, 2008 TH, 2008 TF, 2008 TE4, 2008 TD4, 2008 TC4, 2008 TC, 2008 SY148, 2008 SW1, 2008 SV7, 2008 SU1, 2008 SQ, 2008 SP7, 2008 SO1, 2008 SG148, 2008 SE, 2008 RZ24, 2008 RX24, 2008 RV, 2008 RT26, 2008 RJ1, 2008 RG1, 2008 RE80, 2008 QZ, 2008 QC, 2008 OX8, 2008 NB, 2007 JJ35
`J51`	Atlante Obs. in the Canary Islands, 2 in MPEC 2008-T123 -- 2008 SQ, 2008 SE
`113`	Drebach Obs. in Germany, 2 in MPEC 2008-T123 -- 2001 UZ16, 1994 AW1
`683`	Goodricke-Pigott Obs. in Arizona, 2 in MPEC 2008-T123 -- 2008 QC, 190491
`379`	Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2008-T123 -- 2008 SE, 16960
`B15`	Inastars Obs. in Germany, 2 in MPEC 2008-T123 -- 2001 UZ16, 90403
`J59`	Linceo Obs. in Spain, 1 in MPEC 2008-T123 -- 8567
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-T123 -- 2006 GW2
`B67`	Mirasteilas Obs. in Switzerland, 1 in MPEC 2008-T123 -- 2008 MR1
`A13`	Naef Obs. in Switzerland, 1 in MPEC 2008-T123 -- 105140
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2008-T123 -- 2008 TT26
`A78`	Stia Obs. in Italy, 1 in MPEC 2008-T123 -- 2008 SN1
`A16`	Tentlingen Obs. in Switzerland, 1 in MPEC 2008-T123 -- 2008 SQ1

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

Impact Risk Monitoring on 12 October '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

2003 UM3	JPL Sentry	0359	2022-2107	110	2.7e-06	-7.00	-7.88	0	JPL: "Analysis based on 12 observations spanning 1.0106 days (2003-Oct-17.30722 to 2003-Oct-18.3178)." Diameter approximately 0.008 km. from mean, weighted H=28.1.

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 October '08

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

2115	Grabbed MPEC 2008-T124 - 2007 JJ35 - see above
1505	Grabbed MPEC 2008-T123 - Daily Orbit Update - see above
0359	Noted that JPL Sentry has updated its 2003 UM3 risk assessment - see above

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