2009-07-11 Tracking News

Contents on 11 July '09

IAU Minor Planet Center
- NEOCP Activity -- one listing: 1 new
- New MPECs -- one MPEC
Observers -- eight 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 11 July '09

The MPC's NEO Confirmation Page has 1 listing: 1 new

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new listing. This was a "one nighter."

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

New MPECs on 11 July '09

Minor Planet Electronic Circulars

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

<< DOU on 11 July '09 >> MPEC 2009-N35 - "06:06 UT" - Daily Orbit Update

Observations of risk-listed objects
K09M09B 2009 MB9 (Q=4.990 AU, arc=12 days, H=18.7 ~616m) from Tanti Obs. (July 11.02-04p3)
Observations of recently (no longer) risk-listed objects
K09N00A 2009 NA (Q=4.016 AU, arc=9 days, H=17.4 ~1.12 km) from Astronomical Research Obs. (ARO) (July 10.31-32p4)
K09M08N 2009 MN8 (small asteroid, arc=8 days, H=22.6 ~102m) from Haute Provence Obs. (July 3.07-11p10)
K09L00S 2009 LS (i=45.0°, arc=28 days, H=18.0 ~851m) from ARO (July 10.16-17p3)
Observations of other objects
K09N00E 2009 NE (q=0.361 AU, Q=4.987 AU, arc=4 opp, H=15.7 ~2.45 km) from Skylive Obs. (July 9.90-91p2) and ARO (July 10.19-21p5)
K09M06Z 2009 MZ6 (arc=15 days, H=20.4 ~282m) from Haute Provence Obs. (July 2.09-10p5) and ARO (July 10.24-26p3)
K09M06X 2009 MX6 (arc=16 days, H=19.0 ~537m) from Schiaparelli Obs. (July 8.92-93p2) and ARO (July 10.13-15p4)
K09M00A 2009 MA (arc=24 days, H=21.6 ~162m) from Grove Creek Obs. (July 10.63-64p3)
K09K22J 2009 KJ22 (arc=40 days, H=20.0 ~339m) from ARO (July 10.28-29p4)
K09K07C 2009 KC7 (Q=4.055 AU, arc=44 days, H=19.4 ~446m) from ARO (July 10.26-28p3)
K09K05D 2009 KD5 (arc=45 days, H=18.2 ~776m) from Schiaparelli Obs. (July 9.09p1) and ARO (July 10.34-35p4)
K09K02L 2009 KL2 (arc=2 opp, H=18.1 ~812m) from ARO (July 10.19-21p4)
K09H82B 2009 HB82 (Q=4.413 AU, arc=78 days, H=17.7 ~977m) from ARO (July 10.35-36p3)
K09E01D 2009 ED1 (arc=131 days, H=19.7 ~389m) from ARO (July 11.12-15p3 at V=22.4-5)
K09D01N 2009 DN1 (arc=141 days, H=20.3 ~295m) from ARO (July 10.12p3)
K08C00M 2008 CM (arc=2 opp, H=17.1 ~1.29 km) from ARO (July 10.17-19p4)
K07Y00K 2007 YK (arc=3 opp, H=17.5 ~1.07 km) from ARO (July 10.13-16p3)
K06M12D 2006 MD12 (q=0.331 AU, arc=3 opp, H=19.4 ~446m) from ARO (July 10.29-31p6)
K06L00F 2006 LF (arc=3 opp, H=18.6 ~645m) from ARO (July 10.10-11p3)
K05M00C 2005 MC (Q=4.169 AU, arc=3 opp, H=16.3 ~1.86 km) from ARO (July 10.24-25p3)
K04L02C 2004 LC2 (arc=2 opp, H=18.6 ~645m) from Schiaparelli Obs. (July 8.90p1)
K02N16W 2002 NW16 (arc=2 opp, H=18.0 ~851m) from ARO (July 10.36-37p5)
K02L00V 2002 LV (arc=3 opp, H=16.6 ~1.62 km) from ARO (July 10.17-19p6)
K01F90E 2001 FE90 (arc=2 opp, H=20.7 ~245m) from Tzec Maun Obs. Pingelly (July 9.58-61p10)
K01A50A 2001 AA50 (i=43.9°, arc=4 opp, H=18.4 ~708m) from ARO (July 10.33-34p4)
K00O22B 2000 OB22 (Q=4.252 AU, arc=4 opp, H=17.1 ~1.29 km) from ARO (July 10.11-12p3)
L6523 216523 2001 HY7 from Schiaparelli Obs. (July 9.07-08p3)
G2483 162483 2000 PJ5 from ARO (July 10.22-24p6)
52750 52750 1998 KK17 from ARO (July 10.32-34p3)
15745 15745 1991 PM5 from Schonfeld Obs. (July 9.92-94p3)
04034 4034 1986 PA from ARO (July 10.37-39p6)
04015 4015 Wilson-Harrington (1979 VA) from Grove Creek Obs. (July 10.43-44p2 & 10.49p1)

Observers on 11 July '09

Eight observing facilities appear in today's MPEC.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 24 in MPEC 2009-N35 -- 2009 NE, 2009 NA, 2009 MZ6, 2009 MX6, 2009 LS, 2009 KL2, 2009 KJ22, 2009 KD5, 2009 KC7, 2009 HB82, 2009 ED1, 2009 DN1, 2008 CM, 2007 YK, 2006 MD12, 2006 LF, 2005 MC, 2002 NW16, 2002 LV, 2001 AA50, 2000 OB22, 52750, 162483, 4034
`E16`	Grove Creek Obs. in New South Wales, 2 in MPEC 2009-N35 -- 2009 MA, 4015
`511`	Haute Provence Obs. in Germany, 2 in MPEC 2009-N35 -- 2009 MZ6, 2009 MN8
`204`	Schiaparelli Obs. in Italy, 4 in MPEC 2009-N35 -- 2009 MX6, 2009 KD5, 2004 LC2, 216523
`B76`	Schonfeld Obs. in Germany, 1 in MPEC 2009-N35 -- 15745
`B40`	Skylive Obs. in Italy, 1 in MPEC 2009-N35 -- 2009 NE
`I19`	Tanti Obs. in Argentina, 1 in MPEC 2009-N35 -- 2009 MB9
`D25`	Tzec Maun Obs. Pingelly in Western Australia, 1 in MPEC 2009-N35 -- 2001 FE90

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

Impact Risk Monitoring on 11 July '09

**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.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few objects.
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

2009 MB9	NEODyS	1441	R E M O V E D						-
2009 MB9	JPL Sentry	1441	R E M O V E D						JPL: Risk listing removed at 0850 UTC.

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 11 July '09

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

2201	Noted that the NEOCP has become active
1636	Grabbed MPEC 2009-N35 - Daily Orbit Update - see above
1441	Noted that JPL Sentry has removed 2009 MB9 as an impact risk - see above Noted that NEODyS has removed 2009 MB9 as an impact risk - see above

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