2009-07-09 Tracking News

Contents on 9 July '09

IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- three MPECs
Observers -- twelve 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 9 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 9 July '09

Minor Planet Electronic Circulars

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

MPEC 2009-N28 time-stamped "06:06 UT" - Daily Orbit Update - see below
MPEC 2009-N29 time-stamped "22:50 UT" - Comets C/2009 E5, 2009 F8, 2009 F9, 2009 F10 (SOHO) - see below
MPEC 2009-N30 time-stamped "22:55 UT" - Comets C/2009 G2, 2009 G3, 2009 G4, 2009 G5, 2009 G6 (SOHO)

MPEC 2009-N30 - "22:55 UT" - Comets C/2009 G2, 2009 G3, 2009 G4, 2009 G5, 2009 G6 (SOHO)

CK09G060 C/2009 G6 from the LASCO Coronagraph 2 aboard the Solar & Heliospheric Obs. (SOHO) (April 10.33-44p16)
CK09G050 C/2009 G5 from SOHO C2 (April 6.96-06p14)
CK09G040 C/2009 G4 from SOHO C2 (April 4.65-75p18)
CK09G030 C/2009 G3 from the LASCO Coronagraph 3 aboard the Solar & Heliospheric Obs. (SOHO) (April 2.11-51p36) and SOHO C2 (April 2.63-77p22)
CK09G020 C/2009 G2 from SOHO C2 (April 2.10-20p14)

MPEC 2009-N29 - "22:50 UT" - Comets C/2009 E5, 2009 F8, 2009 F9, 2009 F10 (SOHO)

CK09F100 C/2009 F10 from SOHO C2 (March 30.04-13p12)
CK09F090 C/2009 F9 from SOHO C3 (March 28.47-53p8, 28.60-64p6 & 28.70p2) and SOHO C2 (March 28.79-85p10 & 28.90-91p4)
CK09F080 C/2009 F8 from SOHO C3 (March 16.86-93p8, 16.99-07p8 & 17.11-18p8) and SOHO C2 (March 17.27-31p8)
CK09E050 C/2009 E5 from SOHO C2 (March 10.23-29p10)

<< DOU on 9 July '09 >> MPEC 2009-N28 - "06:06 UT" - Daily Orbit Update

Observations of risk-listed objects
K09M09B 2009 MB9 (Q=5.008 AU, arc=10 days, H=18.8 ~589m) from Rio Cuarto Obs. (July 9.13-14p3)
Observations of other objects
K09N00E 2009 NE (q=0.361 AU, Q=4.987 AU, arc=4 opp, H=15.6 ~2.57 km) from Bigmuskie Obs. (July 8.90-93p3), Madonna di Dossobuono Obs. (July 8.93p3), and Doc Greiner Research Obs. (DGRO) (July 9.17-18p5)
K09M09C 2009 MC9 (arc=9 days, H=17.9 ~891m) from Los Campitos Obs. (July 8.23p3), Grove Creek Obs. (July 8.58-59p3), and El Condor Obs. (July 9.05-07p3)
K09K07M 2009 KM7 from LONEOS (2002 April 15.23-30p4) and Astronomical Research Obs. (ARO) (July 7.31-32p2)
K09K07C 2009 KC7 (Q=4.055 AU, arc=43 days, H=19.3 ~467m) from Naef Obs. (July 8.90-93p2)
K09K05D 2009 KD5 (arc=43 days, H=18.2 ~776m) from ARO (July 7.35p5) and Los Campitos Obs. (July 8.33-34p3)
K09K03C 2009 KC3 (Q=5.453 AU, arc=65 days, H=18.0 ~851m) from Grove Creek Obs. (July 8.34-35p2) and Rio Cuarto Obs. (July 9.04-05p3)
K09K02L 2009 KL2 (arc=2 opp, H=18.1 ~812m) from Bigmuskie Obs. (July 8.85-87p3) and Madonna di Dossobuono Obs. (July 8.89-90p3)
K02L00V 2002 LV (arc=3 opp, H=16.6 ~1.62 km) from Madonna di Dossobuono Obs. (July 8.92p3)
K01F90E 2001 FE90 (arc=2 opp, H=20.7 ~245m) from El Condor Obs. (July 9.14-16p4)
F4244 154244 2002 KL6 from Naef Obs. (July 8.96-99p5)
D7671 137671 1999 XP35 from ARO (July 7.25-27p3)
52768 52768 1998 OR2 from El Condor Obs. (July 9.11-13p3)
17274 17274 2000 LC16 from El Condor Obs. (July 9.08-10p4)
06053 6053 1993 BW3 from the Siding Spring Survey (SSS) (March 6.60-62p3)
03552 3552 Don Quixote (1983 SA) from SSS (March 6.76-78p3), El Condor Obs. (July 8.99-01p3), and Rio Cuarto Obs. (July 9.01-02p3)

Observers on 9 July '09

Twelve observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 3 in MPEC 2009-N28 -- 2009 KM7, 2009 KD5, 137671
`B88`	Bigmuskie Obs. in Italy, 2 in MPEC 2009-N28 -- 2009 NE, 2009 KL2
`H26`	Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2009-N28 -- 2009 NE
`I21`	El Condor Obs. in Argentina, 5 in MPEC 2009-N28 -- 2009 MC9, 2001 FE90, 52768, 17274, 3552
`E16`	Grove Creek Obs. in New South Wales, 2 in MPEC 2009-N28 -- 2009 MC9, 2009 KC3
`699`	LONEOS in Arizona, 1 in MPEC 2009-N28 -- 2009 KM7
`I36`	Los Campitos Obs. in Argentina, 2 in MPEC 2009-N28 -- 2009 MC9, 2009 KD5
`560`	Madonna di Dossobuono Obs. in Italy, 3 in MPEC 2009-N28 -- 2009 NE, 2009 KL2, 2002 LV
`A13`	Naef Obs. in Switzerland, 2 in MPEC 2009-N28 -- 2009 KC7, 154244
`I20`	Rio Cuarto Obs. in Argentina, 3 in MPEC 2009-N28 -- 2009 MB9, 2009 KC3, 3552
`E12`	Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2009-N28 -- 6053, 3552
`2492`	LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 9 in MPECs 2009-N29 & 2009-N30 -- C/2009 G6, C/2009 G5, C/2009 G4, C/2009 G3, C/2009 G2, C/2009 F9, C/2009 F8, C/2009 F10, C/2009 E5
`2493`	LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 3 in MPECs 2009-N29 & 2009-N30 -- C/2009 G3, C/2009 F9, C/2009 F8

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

Impact Risk Monitoring on 9 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	1.7e-08	-4.53	-4.53	0	JPL: "Analysis based on 24 observations spanning 9.6712 days (2009-Jun-29.47208 to 2009-Jul-09.14333)." Diameter approximately 0.620 km. from mean, weighted H=18.7.
2009 MB9	NEODyS	1402	2037	1	1.84e-08	-4.28	-4.28	0	NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2009/06/29.473 to 2009/07/09.144."

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 9 July '09

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

2302	Grabbed MPEC 2009-N29 - Comets C/2009 E5, 2009 F8, 2009 F9, 2009 F10 (SOHO) - see above Grabbed MPEC 2009-N30 - Comets C/2009 G2, 2009 G3, 2009 G4, 2009 G5, 2009 G6 (SOHO) - 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-N28 - Daily Orbit Update - see above

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