2009-07-30 Tracking News

Contents on 30 July '09

IAU Minor Planet Center
- NEOCP Activity -- two listings: 2 updated
- New MPECs -- five MPECs
Observers -- 28 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 30 July '09

The MPC's NEO Confirmation Page has 2 listings: 2 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of eight listings on the NEOCP at some point today.

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 30 July '09

Minor Planet Electronic Circulars

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

MPEC 2009-O50 time-stamped "06:08 UT" - Daily Orbit Update - see below
MPEC 2009-O51 time-stamped "12:14 UT" - 2009 OO9 - see below
MPEC 2009-O52 time-stamped "12:18 UT" - 2009 OP9 - see below
MPEC 2009-O53 time-stamped "16:56 UT" - Comet C/2009 O2 (Catalina) - see below
MPEC 2009-O54 time-stamped "17:32 UT" - Comet C/2009 O3 (Hill)

MPEC 2009-O54 - "17:32 UT" - Comet C/2009 O3 (Hill)

CK09O030 C/2009 O3 from the Catalina Sky Survey (CSS) (July 29.43-48p8 & 30.40-42p4), Castelmartini Obs. (July 29.00-06p8), Great Shefford Obs. (July 30.02-05p2), Schiaparelli Obs. (July 30.03-06p2), Zvezdno Obshtestvo Obs. (July 30.07p2), Astronomical Research Obs. (ARO) (July 30.31-32p3), Tzec Maun Obs. Mayhill (July 30.34-35p3), RAS Obs. Mayhill (July 30.43p1), Sabino Canyon Obs. (July 30.43-44p2), and Magdalena Ridge Obs. (MRO) (July 30.47-48p3)

MPEC 2009-O53 - "16:56 UT" - Comet C/2009 O2 (Catalina)

CK09O020 C/2009 O2 from CSS (July 27.30-32p3, 27.42p1, 28.29-30p4, 29.23-30p8 & 30.28-29p2), the Spacewatch 1.8m telescope (July 28.23-24p2 & 30.22-25p5), Sandlot Obs. (July 28.30-31p3), MRO (July 28.32-34p4 & 30.35-37p4), Guidestar Obs. (July 28.92-94p3), Wildberg Obs. (July 28.93-94p4 & 29.93-98p3), Schiaparelli Obs. (July 28.96p1 & 29.98p1), Table Mtn. Obs. (July 29.25-28p4), Castelmartini Obs. (July 29.91-94p5), Farra d'Isonzo Obs. (July 29.94-97p3), Great Shefford Obs. (July 29.95-96p3), Mandi Obs. (July 29.96-99p3), ARO (July 30.15-16p3), Sabino Canyon Obs. (July 30.33p2), and Tzec Maun Obs. Mayhill (July 30.36-37p3)

MPEC 2009-O52 - "12:18 UT" - 2009 OP9

K09O09P 2009 OP9 was discovered at 1019 UT on 29 July by CSS, which observed it at July 29.43-48p8 and 30.40-42p4. The discovery was confirmed by Great Shefford Obs. (July 30.03-04p3), Schiaparelli Obs. (July 30.07-08p2), Zvezdno Obshtestvo Obs. (July 30.09p2), Spacewatch 1.8m (July 30.37-38p3), Sabino Canyon Obs. (July 30.40-41p3), and MRO (July 30.40-41p3).

MPEC 2009-O51 - "12:14 UT" - 2009 OO9

K09O09O 2009 OO9 was discovered at 0945 UT on 29 July by Alianza S4 Obs., which observed it at July 29.41p3. The discovery was confirmed by Great Shefford Obs. (July 30.09p2), MRO (July 30.43-45p4), and Sabino Canyon Obs. (July 30.44-46p3).

<< DOU on 30 July '09 >> MPEC 2009-O50 - "06:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K09O06W 2009 OW6 (small asteroid, arc=3 days, H=25.2 ~31m) from Schiaparelli Obs. (July 28.99p2) and Great Shefford Obs. (July 30.01p3)
Observations of recently (no longer) risk-listed objects
K09O00F 2009 OF (arc=13 days, H=21.5 ~170m) from Madonna di Dossobuono Obs. (July 29.86p3)
K09M08N 2009 MN8 (small asteroid, arc=30 days, H=22.7 ~98m) from ARO (July 28.22-26p3)
Observations of small asteroids (H>22.0)
K09O05S 2009 OS5 (arc=6 days, H=23.6 ~65m) from ARO (July 28.28-30p4)
K09O03C 2009 OC3 (arc=6 days, H=22.2 ~123m) from ARO (July 28.28-29p3)
Observations of other objects
K09O05X 2009 OX5 (i=41.7°, arc=3 days, H=19.7 ~389m) from Schiaparelli Obs. (July 28.91-92p3), Spacewatch 1.8m (July 29.21-22p3), and El Condor Obs. (July 30.03-04p2)
K09O04Z 2009 OZ4 (i=38.5°, Q=4.650 AU, arc=4 days, H=19.1 ~513m) from Paus Obs. (July 26.94p2) and Schiaparelli Obs. (July 28.93-94p3)
K09O03B 2009 OB3 (arc=7 days, H=18.9 ~562m) from the Siding Spring Survey (SSS) (July 29.81p2)
K09O00G 2009 OG (i=48.3°, q=0.382 AU, Q=5.030 AU, arc=12 days, H=16.1 ~2.04 km) from El Condor Obs. (July 30.07p1 & 30.12p1)
K09O00C 2009 OC (arc=2 opp, H=20.4 ~282m) from Mirasteilas Obs. (July 29.88-89p3)
K09N00L 2009 NL (Q=4.756 AU, arc=16 days, H=19.9 ~355m) from ARO (July 28.25p4) and CSS (July 29.34-36p4)
K09N00H 2009 NH (arc=18 days, H=18.8 ~589m) from ARO (July 28.26-27p4)
K09M01L 2009 ML1 (arc=36 days, H=19.6 ~407m) from Schiaparelli Obs. (July 28.98p2)
K09M00S 2009 MS (i=52.4°, arc=40 days, H=16.0 ~2.14 km, q=0.864 AU) from Spacewatch 1.8m (July 29.26-28p3)
K09K07C 2009 KC7 (Q=4.055 AU, arc=62 days, H=19.5 ~426m) from ARO (July 28.11-12p4)
K09C03C 2009 CC3 (arc=174 days, H=19.1 ~513m) from ARO (July 28.21-22p3)
K06K01D 2006 KD1 (Q=4.431 AU, arc=2 opp, H=17.2 ~1.23 km) from Spacewatch 1.8m (July 29.47-48p2 at V=23)
K06C00E 2006 CE (i=44.3°, arc=2 opp, H=18.6 ~645m) from Spacewatch 1.8m (July 29.37-38p2)
K05P02J 2005 PJ2 (arc=3 opp, H=19.5 ~426m) from CSS (July 29.45-46p4)
K03T00K 2003 TK (arc=3 opp, H=19.6 ~407m) from Spacewatch 1.8m (July 29.41-42p2)
K02L00V 2002 LV (arc=3 opp, H=16.6 ~1.62 km) from Betelgeuse Station (July 8.92-93p3, 19.86p3 & 21.87p3), Eschenberg Obs. (July 29.83-84p3), Madonna di Dossobuono Obs. (July 29.87p3), and El Condor Obs. (July 30.06p2)
K01L00C 2001 LC (q=0.340 AU, arc=4 opp, H=19.1 ~513m) from CSS (July 29.36-38p4)
K00T64O 2000 TO64 (i=37.4°, Q=4.445 AU, arc=4 opp, H=16.7 ~1.55 km) from Madonna di Dossobuono Obs. (July 29.93p3)
K00O22B 2000 OB22 (Q=4.252 AU, arc=4 opp, H=17.1 ~1.29 km) from the Spacewatch 0.9m telescope (July 29.17-19p2) and Madonna di Dossobuono Obs. (July 29.88p3)
L5442 215442 2002 MQ3 from Betelgeuse Sta. (July 8.89p1)
G3758 163758 2003 OS13 from Betelgeuse Sta. (July 8.97p1)
G2483 162483 2000 PJ5 from Betelgeuse Sta. (July 19.90p3 & 21.93-94p3) and Castelmartini Obs. (July 29.84-85p3)
F9399 159399 1998 UL1 from LINEAR (July 29.20-23p4)
E3651 143651 2003 QO104 from El Condor Obs. (July 30.09p1 & 30.13p1)
17274 17274 2000 LC16 from CSS (July 29.27-28p4)
15745 15745 1991 PM5 from Betelgeuse Sta. (July 8.93p3) and Castelmartini Obs. (July 29.86p3)
04015 4015 Wilson-Harrington (1979 VA) from Stixendorf Obs. (July 28.87-88p2)

Observers on 30 July '09

A total of 28 observing facilities appear in today's MPECs.

Code	Observer / observatory
`I08`	Alianza S4 Obs. in Argentina, 1 in MPEC 2009-O51 -- 2009 OO9
`H55`	Astronomical Research Obs. (ARO) in Illinois, 9 in MPECs 2009-O50, 2009-O53 & 2009-O54 -- 2009 OS5, 2009 OC3, C/2009 O3, C/2009 O2, 2009 NL, 2009 NH, 2009 MN8, 2009 KC7, 2009 CC3
`B75`	Betelgeuse Station in Italy, 5 in MPEC 2009-O50 -- 2002 LV, 215442, 163758, 162483, 15745
`160`	Castelmartini Obs. in Italy, 4 in MPECs 2009-O50, 2009-O53 & 2009-O54 -- C/2009 O3, C/2009 O2, 162483, 15745
`703`	Catalina Sky Survey (CSS) in Arizona, 7 in MPECs 2009-O50, 2009-O52, 2009-O53 & 2009-O54 -- 2009 OP9, C/2009 O3, C/2009 O2, 2009 NL, 2005 PJ2, 2001 LC, 17274
`I21`	El Condor Obs. in Argentina, 4 in MPEC 2009-O50 -- 2009 OX5, 2009 OG, 2002 LV, 143651
`151`	Eschenberg Obs. in Switzerland, 1 in MPEC 2009-O50 -- 2002 LV
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2009-O53 -- C/2009 O2
`J95`	Great Shefford Obs. in England, 5 in MPECs 2009-O50, 2009-O51, 2009-O52, 2009-O53 & 2009-O54 -- 2009 OW6, 2009 OP9, 2009 OO9, C/2009 O3, C/2009 O2
`A17`	Guidestar Obs. in Germany, 1 in MPEC 2009-O53 -- C/2009 O2
`704`	LINEAR in New Mexico, 1 in MPEC 2009-O50 -- 159399
`560`	Madonna di Dossobuono Obs. in Italy, 4 in MPEC 2009-O50 -- 2009 OF, 2002 LV, 2000 TO64, 2000 OB22
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2009-O51, 2009-O52, 2009-O53 & 2009-O54 -- 2009 OP9, 2009 OO9, C/2009 O3, C/2009 O2
`B28`	Mandi Obs. in Italy, 1 in MPEC 2009-O53 -- C/2009 O2
`B67`	Mirasteilas Obs. in Switzerland, 1 in MPEC 2009-O50 -- 2009 OC
`B49`	Paus Obs. in Spain, 1 in MPEC 2009-O50 -- 2009 OZ4
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-O54 -- C/2009 O3
`854`	Sabino Canyon Obs. in Arizona, 4 in MPECs 2009-O51, 2009-O52, 2009-O53 & 2009-O54 -- 2009 OP9, 2009 OO9, C/2009 O3, C/2009 O2
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2009-O53 -- C/2009 O2
`204`	Schiaparelli Obs. in Italy, 7 in MPECs 2009-O50, 2009-O52, 2009-O53 & 2009-O54 -- 2009 OZ4, 2009 OX5, 2009 OW6, 2009 OP9, C/2009 O3, C/2009 O2, 2009 ML1
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2009-O50 -- 2009 OB3
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-O50 -- 2000 OB22
`291`	Spacewatch 1.8m telescope in Arizona, 7 in MPECs 2009-O50, 2009-O52 & 2009-O53 -- 2009 OX5, 2009 OP9, C/2009 O2, 2009 MS, 2006 KD1, 2006 CE, 2003 TK
`A71`	Stixendorf Obs. in Austria, 1 in MPEC 2009-O50 -- 4015
`673`	Table Mtn. Obs. in southern California, 1 in MPEC 2009-O53 -- C/2009 O2
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 2 in MPECs 2009-O53 & 2009-O54 -- C/2009 O3, C/2009 O2
`198`	Wildberg Obs. in Germany, 1 in MPEC 2009-O53 -- C/2009 O2
`A79`	Zvezdno Obshtestvo Obs. in Bulgaria, 2 in MPECs 2009-O52 & 2009-O54 -- 2009 OP9, C/2009 O3

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

Impact Risk Monitoring on 30 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 OW6	NEODyS	1401	2074-2080	3	8.79e-06	-5.46	-5.57	0	NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2009/07/27.361 to 2009/07/30.016."
2009 OW6	JPL Sentry	1400	2074-2080	2	8.7e-06	-5.46	-5.56	0	JPL: "Analysis based on 31 observations spanning 2.6542 days (2009-Jul-27.36058 to 2009-Jul-30.014752)." Diameter approximately 0.031 km. from mean, weighted H=25.2.

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 30 July '09

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

1914	Grabbed MPEC 2009-O53 - Comet C/2009 O2 (Catalina) - see above Grabbed MPEC 2009-O54 - Comet C/2009 O3 (Hill) - see above
1401	Grabbed MPEC 2009-O50 - Daily Orbit Update - see above Grabbed MPEC 2009-O51 - 2009 OO9 - see above Grabbed MPEC 2009-O52 - 2009 OP9 - see above
1400	Noted that JPL Sentry has updated its 2009 OW6 risk assessment - see above Noted that NEODyS has posted 2009 OW6 as an impact risk - see above

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