2009-06-19 Tracking News

Contents on 19 June '09

IAU Minor Planet Center
- NEOCP Activity -- eight listings: 2 new, 6 updated
- New MPECs -- one MPEC
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 19 June '09

The MPC's NEO Confirmation Page has 8 listings: 2 new, 6 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and six updated listings. Of these, seven were "one nighters."

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 19 June '09

Minor Planet Electronic Circulars

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

<< DOU on 19 June '09 >> MPEC 2009-M14 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K09L02W 2009 LW2 (arc=3 days, H=20.0 ~339m) from Astronomical Research Obs. (ARO) (June 18.30-31p2)
Observations of recently (no longer) risk-listed objects
K09L01Q 2009 LQ1 (almost small, arc=108 days, H=22.0 ~135m) from the Spacewatch 0.9m telescope (Feb. 28.39-43p3, March 16.23-26p3 & 24.21-24p3) and the Catalina Sky Survey (CSS) (May 15.28-31p4)
K09L00S 2009 LS (i=45.1°, arc=6 days, H=17.9 ~891m) from ARO (June 18.20-21p5) and Verona Obs. (June 18.86-87p4)
K09K05D 2009 KD5 (arc=23 days, H=18.2 ~776m) from ARO (June 18.32-33p3)
K09K02L 2009 KL2 (arc=30 days, H=18.1 ~812m) from Verona Obs. (June 18.92-95p4) and Peschiera del Garda Obs. (June 18.98-01p3)
Observations of small asteroids (H>22.0)
K09L02V 2009 LV2 (arc=4 days, H=22.4 ~112m) from Great Shefford Obs. (June 18.00-01p3)
K09H00G 2009 HG (arc=62 days, H=24.5 ~43m) from ARO (June 18.22-24p3)
K00AK5E 2000 AE205 (arc=3 opp, H=23.0 ~85m) from the Spacewatch 1.8m telescope (June 17.37p1)
Observations of almost-small asteroids (21.7<H<=22.0)
K09L00Q 2009 LQ (arc=8 days, H=21.9 ~141m) from Great Shefford Obs. (June 18.92-93p3) and Sormano Obs. (June 18.94p3)
Observations of other objects
K09M00A 2009 MA (arc=3 days, H=21.3 ~186m) from ARO (June 18.21-22p3), Verona Obs. (June 18.89-90p4), Sormano Obs. (June 18.92p3), and Alter Satzberg Obs. (June 18.93-95p3)
K09K22J 2009 KJ22 (arc=18 days, H=20.0 ~339m) from ARO (June 18.26p3)
K09K07C 2009 KC7 (Q=4.051 AU, arc=22 days, H=19.3 ~467m) from ARO (June 18.28p3)
K04T19L 2004 TL19 (arc=2 opp, H=20.7 ~245m) from LINEAR (2008 Oct. 3.22-25p4)
K02U00X 2002 UX (arc=3 opp, H=17.9 ~891m) from the Siding Spring Survey (SSS) (June 18.59-63p4)
K02L38T 2002 LT38 (arc=2 opp, H=20.2 ~309m) from ARO (June 18.20-21p4)
K02L00V 2002 LV (arc=3 opp, H=16.5 ~1.70 km) from ARO (June 18.25-26p4)
H5706 175706 1996 FG3 from Calar Alto Obs. (April 14.91p1, 14.97-99p2 & 15.03p1)
D6618 136618 1994 CN2 from LINEAR (2008 Feb. 12.39p1)
85989 85989 1999 JD6 from Peschiera del Garda Obs. (June 11.91-93p3) and Tentlingen Obs. (June 17.92-99p4)
67367 67367 2000 LY27 from SSS (June 18.59-63p4)
04015 4015 Wilson-Harrington (1979 VA) from Stixendorf Obs. (June 17.95p2)

Observers on 19 June '09

Fourteen observing facilities appear in today's MPEC.

Code	Observer / observatory
`B03`	Alter Satzberg Obs. in Austria, 1 in MPEC 2009-M14 -- 2009 MA
`H55`	Astronomical Research Obs. (ARO) in Illinois, 9 in MPEC 2009-M14 -- 2009 MA, 2009 LW2, 2009 LS, 2009 KJ22, 2009 KD5, 2009 KC7, 2009 HG, 2002 LV, 2002 LT38
`493`	Calar Alto Obs. in Spain, 1 in MPEC 2009-M14 -- 175706
`703`	Catalina Sky Survey in Arizona, 1 in MPEC 2009-M14 -- 2009 LQ1
`J95`	Great Shefford Obs. in England, 2 in MPEC 2009-M14 -- 2009 LV2, 2009 LQ
`704`	LINEAR in New Mexico, 2 in MPEC 2009-M14 -- 2004 TL19, 136618
`A53`	Peschiera del Garda Obs. in Italy, 2 in MPEC 2009-M14 -- 2009 KL2, 85989
`E12`	Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2009-M14 -- 2002 UX, 67367
`587`	Sormano Obs. in Italy, 2 in MPEC 2009-M14 -- 2009 MA, 2009 LQ
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-M14 -- 2009 LQ1
`291`	Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2009-M14 -- 2000 AE205
`A71`	Stixendorf Obs. in Austria, 1 in MPEC 2009-M14 -- 4015
`A16`	Tentlingen Obs. in Switzerland, 1 in MPEC 2009-M14 -- 85989
`A48`	Verona Obs. in Italy, 3 in MPEC 2009-M14 -- 2009 MA, 2009 LS, 2009 KL2

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

Impact Risk Monitoring on 19 June '09

**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.
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 LW2	JPL Sentry	1400	R E M O V E D						JPL: Risk listing removed at 0851 UTC.
2009 LW2	NEODyS	1400	R E M O V E D						-

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 19 June '09

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

1400	Noted that JPL Sentry has removed 2009 LW2 as an impact risk - see above Noted that NEODyS has removed 2009 LW2 as an impact risk - see above Grabbed MPEC 2009-M14 - Daily Orbit Update - see above

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