2009-07-08 Tracking News

Contents on 8 July '09

IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- seven MPECs
Observers -- four 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 8 July '09

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty and hasn't been noted by The Tracking News as being active yet today (checked at 2358 UTC). It was last noted active on July 5th.

New MPECs on 8 July '09

Minor Planet Electronic Circulars

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

MPEC 2009-N21 time-stamped "06:07 UT" - Daily Orbit Update - see below
MPEC 2009-N22 time-stamped "13:48 UT" - Observable Comets - see below
MPEC 2009-N23 time-stamped "13:52 UT" - Distant Minor Planets - see below
MPEC 2009-N24 time-stamped "13:56 UT" - Atens and Apollos - see below
MPEC 2009-N25 time-stamped "13:56 UT" - Amors - see below
MPEC 2009-N26 time-stamped "13:56 UT" - Unusual Minor Planets - see below
MPEC 2009-N27 time-stamped "13:56 UT" - PHAs

MPEC 2009-N27 - "13:56 UT" - PHAs

MPEC 2009-N26 - "13:56 UT" - Unusual Minor Planets

MPEC 2009-N25 - "13:56 UT" - Amors

MPEC 2009-N24 - "13:56 UT" - Atens and Apollos

MPEC 2009-N23 - "13:52 UT" - Distant Minor Planets

MPEC 2009-N22 - "13:48 UT" - Observable Comets

<< DOU on 8 July '09 >> MPEC 2009-N21 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K09M09B 2009 MB9 (Q=4.978 AU, arc=9 days, H=18.8 ~589m) from Tanti Obs. (July 8.08-10p3)
Observations of recently (no longer) risk-listed objects
K09N00A 2009 NA (Q=4.309 AU, arc=6 days, H=17.4 ~1.12 km) from Astronomical Research Obs. (ARO) (July 7.26-28p5)
K09L00X 2009 LX (Q=4.542 AU, arc=26 days, H=19.5 ~426m) from Rio Cuarto Obs. (July 7.31-33p3)
K09L00S 2009 LS (i=45.0°, arc=25 days, H=18.0 ~851m) from ARO (July 7.16-17p3)
Observations of other objects
K09M09C 2009 MC9 (arc=7 days, H=18.0 ~851m) from Rio Cuarto Obs. (July 7.24p3)
K09M06X 2009 MX6 (arc=13 days, H=19.0 ~537m) from ARO (July 7.13-14p5)
K09M01L 2009 ML1 (arc=14 days, H=19.3 ~467m) from ARO (July 7.29p3)
K09K22J 2009 KJ22 (arc=36 days, H=20.0 ~339m) from Schiaparelli Obs. (July 3.98p2)
K09K07M 2009 KM7 (arc=42 days, H=17.9 ~891m) from ARO (July 7.31-32p3)
K09K07C 2009 KC7 (Q=4.055 AU, arc=41 days, H=19.3 ~467m) from ARO (July 7.20-22p3)
K09J01K 2009 JK1 (arc=109 days, H=19.9 ~355m) from ARO (July 6.12-13p3)
K09H21D 2009 HD21 (Q=4.668 AU, arc=105 days, H=18.2 ~776m) from ARO (July 7.10-11p2)
K09F29Y 2009 FY29 (arc=103 days, H=19.9 ~355m) from ARO (July 7.32-33p2)
K09C03C 2009 CC3 (arc=153 days, H=19.1 ~513m) from ARO (July 7.21-22p3)
K09B02L 2009 BL2 (arc=170 days, H=19.5 ~426m) from ARO (July 7.11-12p3)
K09A00V 2009 AV (i=45.9°, arc=186 days, H=18.0 ~851m) from ARO (July 7.33-34p3)
K07L00L 2007 LL (arc=3 opp, H=20.4 ~282m) from Schiaparelli Obs. (July 4.00-02p3)
K05N63J 2005 NJ63 (arc=2 opp, H=21.0 ~214m) from ARO (July 7.19-20p4)
K05A03D 2005 AD3 (arc=3 opp, H=17.2 ~1.23 km) from ARO (July 7.23-24p4)
K04L02C 2004 LC2 (arc=2 opp, H=18.6 ~645m) from ARO (July 7.14-16p3)
K02L00V 2002 LV (arc=3 opp, H=16.6 ~1.62 km) from Schiaparelli Obs. (July 3.95-97p2)
K02J08Y 2002 JY8 (arc=3 opp, H=17.7 ~977m) from ARO (July 7.12-13p3)
68216 68216 2001 CV26 from Rio Cuarto Obs. (July 7.36-37p3)

Observers on 8 July '09

Four observing facilities appear in today's MPEC.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 16 in MPEC 2009-N21 -- 2009 NA, 2009 MX6, 2009 ML1, 2009 LS, 2009 KM7, 2009 KC7, 2009 JK1, 2009 HD21, 2009 FY29, 2009 CC3, 2009 BL2, 2009 AV, 2005 NJ63, 2005 AD3, 2004 LC2, 2002 JY8
`I20`	Rio Cuarto Obs. in Argentina, 3 in MPEC 2009-N21 -- 2009 MC9, 2009 LX, 68216
`204`	Schiaparelli Obs. in Italy, 3 in MPEC 2009-N21 -- 2009 KJ22, 2007 LL, 2002 LV
`I19`	Tanti Obs. in Argentina, 1 in MPEC 2009-N21 -- 2009 MB9

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

Impact Risk Monitoring on 8 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	JPL Sentry	1402	2037	1	1.6e-08	-4.56	-4.56	0	JPL: "Analysis based on 21 observations spanning 8.6262 days (2009-Jun-29.47208 to 2009-Jul-08.09828)." Diameter approximately 0.630 km. from mean, weighted H=18.7.
2009 MB9	NEODyS	1402	2037	1	1.68e-08	-4.30	-4.30	0	NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2009/06/29.473 to 2009/07/08.099."

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 8 July '09

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

1438	Grabbed MPEC 2009-N24 - Atens and Apollos - see above Grabbed MPEC 2009-N25 - Amors - see above Grabbed MPEC 2009-N26 - Unusual Minor Planets - see above Grabbed MPEC 2009-N27 - PHAs - see above
1402	Noted that JPL Sentry has updated its 2009 MB9 risk assessment - see above Noted that NEODyS has updated its 2009 MB9 risk assessment - see above Grabbed MPEC 2009-N21 - Daily Orbit Update - see above Grabbed MPEC 2009-N22 - Observable Comets - see above Grabbed MPEC 2009-N23 - Distant Minor Planets - see above

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