2009-11-09 Tracking News

Contents on 9 November '09

IAU Minor Planet Center
- NEOCP Activity -- ten listings: 3 new, 7 updated
- New MPECs -- eleven MPECs
Observers -- nineteen observing facilities
Impact Risk Monitoring -- two objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
News image catalog
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 November '09

The MPC's NEO Confirmation Page has 10 listings: 3 new, 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and seven updated listings. Of these, seven were "one nighters." So far The Tracking News has counted a total of 27 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 9 November '09

Minor Planet Electronic Circulars

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

MPEC 2009-V25 time-stamped "07:07 UT" - Daily Orbit Update - see below
MPEC 2009-V26 time-stamped "12:30 UT" - 2009 VP - see below
MPEC 2009-V27 time-stamped "12:33 UT" - 2009 VQ - see below
MPEC 2009-V28 time-stamped "12:35 UT" - 2009 VR - see below
MPEC 2009-V29 time-stamped "12:38 UT" - 2009 VS - see below
MPEC 2009-V30 time-stamped "12:40 UT" - 2009 VT - see below
MPEC 2009-V31 time-stamped "12:45 UT" - 2008 DV - see below
MPEC 2009-V32 time-stamped "16:53 UT" - 2009 VW - see below
MPEC 2009-V33 time-stamped "17:09 UT" - 2009 HC21 - see below
MPEC 2009-V34 time-stamped "19:19 UT" - 2009 VX - see below
MPEC 2009-V35 time-stamped "23:18 UT" - 2009 VZ

MPEC 2009-V35 - "23:18 UT" - 2009 VZ

K09V00Z 2009 VZ (Earth MOID=8.2 LD, H=21.2 ~195m) was discovered at 0839 UT on 8 Nov. by LINEAR, which observed it at Nov. 8.36-42p5 and 9.35-41p9.

MPEC 2009-V34 - "19:19 UT" - 2009 VX

K09V00X 2009 VX (risk-listed, Q=4.349 AU, Earth MOID=2.6 LD, H=26.1 ~20m) was discovered at 0517 UT on 9 Nov. by the Catalina Sky Survey (CSS), which observed it at Nov. 9.22-24p3 and 9.29p4. The discovery was confirmed by Sabino Canyon Obs. (Nov. 9.33-34p3), Magdalena Ridge Obs. (MRO) (Nov. 9.36-37p4), and Tenagra II Obs. (Nov. 9.42-43p3). This object will be coming within ten lunar distances (LD) of Earth, reaching 3.0 LD on 12 Nov.

MPEC 2009-V33 - "17:09 UT" - 2009 HC21

K09H21C 2009 HC21 (small asteroid, H=22.2 ~123m) from David Tholen's team on Mauna Kea (Nov. 1.21p3 & 9.30p2)

MPEC 2009-V32 - "16:53 UT" - 2009 VW

K09V00W 2009 VW (H=21.6 ~162m) was discovered at 0911 UT on 9 Nov. by CSS, which observed it at Nov. 9.38-48p10 and 9.54p2. The discovery was confirmed by MRO (Nov. 9.45-46p5), Tenagra II Obs. (Nov. 9.49-50p3), and Cristovao Jacques via RAS Obs. Moorook (Nov. 9.64-65p3).

MPEC 2009-V31 - "12:45 UT" - 2008 DV

K08D00V 2008 DV (H=18.3 ~741m) from Tholen team/Mauna Kea (Sept. 5.61p1 at R=23.2, 7.61-62p3 at R=22.4-6 & Oct. 18.51p1 at R=22.5)

MPEC 2009-V30 - "12:40 UT" - 2009 VT

K09V00T 2009 VT (risk-listed, Earth MOID=3.4 LD, H=22.2 ~123m) was discovered at 0723 UT on 8 Nov. by the Mt. Lemmon Survey (MLS), which observed it at Nov. 8.31-32p4, 8.43-44p3, and 9.31-39p8. The discovery was confirmed by Tenagra II Obs. (Nov. 8.39-40p3 & 9.38-39p3).

MPEC 2009-V29 - "12:38 UT" - 2009 VS

K09V00S 2009 VS (small asteroid, H=24.9 ~35m) was discovered at 0608 UT on 8 Nov. by CSS, which observed it at Nov. 8.26-31p7. The discovery was confirmed by Sabino Canyon Obs. (Nov. 8.30-31p3), Cordell-Lorenz Obs. (Nov. 8.31-33p4), Sandlot Obs. (Nov. 8.37-39p4), Tenagra II Obs. (Nov. 8.42p3 & 9.35p3), Great Shefford Obs. (Nov. 8.87p2), MLS (Nov. 9.31-33p4), and MRO (Nov. 9.39-41p4).

MPEC 2009-V28 - "12:35 UT" - 2009 VR

K09V00R 2009 VR (small asteroid, Earth MOID=5.4 LD, H=28.2 ~8m) was discovered at 0559 UT on 8 Nov. by MLS, which observed it at Nov. 8.25-33p7 and 8.38p4. The discovery was confirmed by Tenagra II Obs. (Nov. 8.40-41p3 & 9.40-41p2), Great Shefford Obs. (Nov. 8.94-96p3), and MRO (Nov. 9.33-35p5). This object will be coming within ten lunar distances (LD) of Earth, reaching 6.6 LD on 14 Nov.

MPEC 2009-V27 - "12:33 UT" - 2009 VQ

K09V00Q 2009 VQ (small asteroid, Earth MOID=6.3 LD, H=26.4 ~18m) was discovered at 0441 UT on 8 Nov. by CSS, which observed it at Nov. 8.20-21p3, 8.25-26p4, and 8.31p4. The discovery was confirmed by Sabino Canyon Obs. (Nov. 8.28-29p3), Cordell-Lorenz Obs. (Nov. 8.31p6), Sandlot Obs. (Nov. 8.40-41p4), Tenagra II Obs. (Nov. 8.41-42p3, 9.23p3 & 9.50-51p2), Great Shefford Obs. (Nov. 8.86p3), Terskol Obs. (Nov. 9.11p2), and MRO (Nov. 9.48-49p4). This object is now within ten lunar distances (LD) of Earth, reaching 7.1 LD on 7 Nov.

MPEC 2009-V26 - "12:30 UT" - 2009 VP

K09V00P 2009 VP (small asteroid, H=22.6 ~102m) was discovered at 0625 UT on 6 Nov. by LINEAR, which observed it at Nov. 6.27-31p4 and 8.29-34p5. The discovery was confirmed by Tenagra II Obs. (Nov. 7.32p2, 8.31p3 & 9.30-31p3), Sandlot Obs. (Nov. 7.37-38p3), An Carraig Obs. (Nov. 7.95p3), Great Shefford Obs. (Nov. 7.96p3, 8.07-08p3 & 8.96-97p3), Los Molinos Obs. (Nov. 8.05-06p9), Cordell-Lorenz Obs. (Nov. 8.14-18p6), Rio Cuarto Obs. (Nov. 8.17-18p3), Sabino Canyon Obs. (Nov. 8.31-32p3), CSS (Nov. 9.26-28p3), and MRO (Nov. 9.39-41p4).

<< DOU on 9 Nov. '09 >> MPEC 2009-V25 - "07:07 UT" - Daily Orbit Update

Observations of recently (no longer) risk-listed objects
K09U20L 2009 UL20 (small asteroid, arc=14 days, H=23.8 ~59m) from the Spacewatch 1.8m telescope (Nov. 8.38-40p3)
K09T03B 2009 TB3 (arc=27 days, H=21.0 ~214m) from Spacewatch 1.8m (Nov. 8.41-42p3)
Observations of small asteroids (H>22.0)
K09U87T 2009 UT87 (Q=4.092 AU, arc=13 days, H=22.9 ~89m) from Tenagra II Obs. (Nov. 8.36p3)
K09U20K 2009 UK20 (arc=14 days, H=26.3 ~19m) from Tenagra II Obs. (Nov. 8.32-33p3)
K09U19D 2009 UD19 (arc=15 days, H=24.0 ~54m) from Sandlot Obs. (Nov. 8.42-44p4) and Tenagra II Obs. (Nov. 8.52-53p3)
K09U19B 2009 UB19 (arc=15 days, H=23.3 ~74m) from Spacewatch 1.8m (Nov. 8.33-37p3 at V=21.5-22.1)
K09U05Q 2009 UQ5 (arc=18 days, H=24.6 ~41m) from Spacewatch 1.8m (Nov. 8.44-45p3)
K09U00G 2009 UG (arc=23 days, H=23.2 ~78m) from Spacewatch 1.8m (Nov. 8.27-28p3)
Observations of other objects
K09U17X 2009 UX17 (arc=17 days, H=21.6 ~162m) from CSS (Nov. 8.32-34p4)
K09U03M 2009 UM3 (Q=4.349 AU, arc=20 days, H=17.9 ~891m) from CSS (Nov. 8.40-42p4)
K09T12K 2009 TK12 (arc=25 days, H=20.5 ~269m) from Hamamatsu-Yuto Obs. (Nov. 8.54-55p3 & 8.60-61p3)
K09S19T 2009 ST19 (arc=53 days, H=18.4 ~708m) from Hamamatsu-Yuto Obs. (Nov. 8.63-66p5)
K09S01X 2009 SX1 (arc=51 days, H=18.8 ~589m) from CSS (Nov. 8.48-49p4)
K09R02H 2009 RH2 (arc=56 days, H=21.4 ~178m) from Spacewatch 1.8m (Nov. 8.31-32p3)
K09R00N 2009 RN (Q=4.584 AU, arc=59 days, H=20.0 ~339m) from Hamamatsu-Yuto Obs. (Nov. 8.68-71p3)
K09N00A 2009 NA (Q=4.129 AU, arc=131 days, H=17.5 ~1.07 km) from Hamamatsu-Yuto Obs. (Nov. 8.71-75p7)
K09M06X 2009 MX6 (arc=137 days, H=19.2 ~490m) from LINEAR (Nov. 8.37-42p4)
K07VI6H 2007 VH186 (arc=2 opp, H=20.2 ~309m) from CSS (Nov. 8.32-34p4)
K06W01N 2006 WN1 (arc=2 opp, H=18.8 ~589m) from MLS (Nov. 8.41-43p4)
K06H51Z 2006 HZ51 (arc=3 opp, H=18.6 ~645m) from Spacewatch 1.8m (Nov. 8.29-30p3)
K05R06Q 2005 RQ6 (arc=2 opp, H=18.8 ~589m) from Hamamatsu-Yuto Obs. (Nov. 8.48-53p13)
K04V15A 2004 VA15 (Q=4.604 AU, arc=2 opp, H=18.5 ~676m) from LINEAR (Nov. 8.38-42p4)
K02Y02N 2002 YN2 (i=50.3°, arc=5 opp, H=18.5 ~676m) from MLS (Nov. 8.53p4)
M4926 224926 2007 DA41 from MLS (Nov. 8.34-35p4)
L7796 217796 2000 TO64 from CSS (Nov. 8.13-16p4)
G2273 162273 1999 VL12 from the Spacewatch 0.9m telescope (Nov. 8.15-18p3)
F2828 152828 1999 VT25 from MLS (Nov. 8.24-26p4)
85804 85804 1998 WQ5 from LINEAR (Nov. 8.22-26p4)
54660 54660 2000 UJ1 from An Carraig Obs. (Nov. 8.88-91p9)
10115 10115 1992 SK from LINEAR (Nov. 8.37-40p3)
05626 5626 1991 FE from Vicksburg Obs. (Nov. 8.04-05p3)
03552 3552 Don Quixote (1983 SA) from Vicksburg Obs. (Nov. 8.02-03p4)
00433 433 Eros (1898 DQ) from LINEAR (Oct. 25.19p1)

Observers on 9 November '09

Nineteen observing facilities appear in today's MPECs.

Code	Observer / observatory
`J16`	An Carraig Obs. in Northern Ireland, 2 in MPECs 2009-V25 & 2009-V26 -- 2009 VP, 54660
`703`	Catalina Sky Survey (CSS) in Arizona, 10 in MPECs 2009-V25, 2009-V26, 2009-V27, 2009-V29, 2009-V32 & 2009-V34 -- 2009 VX, 2009 VW, 2009 VS, 2009 VQ, 2009 VP, 2009 UX17, 2009 UM3, 2009 SX1, 2007 VH186, 217796
`850`	Cordell-Lorenz Obs. in Tennessee, 3 in MPECs 2009-V26, 2009-V27 & 2009-V29 -- 2009 VS, 2009 VQ, 2009 VP
`J95`	Great Shefford Obs. in England, 4 in MPECs 2009-V26, 2009-V27, 2009-V28 & 2009-V29 -- 2009 VS, 2009 VR, 2009 VQ, 2009 VP
`379`	Hamamatsu-Yuto Obs. in Japan, 5 in MPEC 2009-V25 -- 2009 TK12, 2009 ST19, 2009 RN, 2009 NA, 2005 RQ6
`704`	LINEAR in New Mexico, 7 in MPECs 2009-V25, 2009-V26 & 2009-V35 -- 2009 VZ, 2009 VP, 2009 MX6, 2004 VA15, 85804, 10115, 433
`844`	Los Molinos Obs. in Uruguay, 1 in MPEC 2009-V26 -- 2009 VP
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 6 in MPECs 2009-V26, 2009-V27, 2009-V28, 2009-V29, 2009-V32 & 2009-V34 -- 2009 VX, 2009 VW, 2009 VS, 2009 VR, 2009 VQ, 2009 VP
`5682`	David Tholen's team on Mauna Kea in Hawaii, 2 in MPECs 2009-V31 & 2009-V33 -- 2009 HC21, 2008 DV
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 7 in MPECs 2009-V25, 2009-V28, 2009-V29 & 2009-V30 -- 2009 VT, 2009 VS, 2009 VR, 2006 WN1, 2002 YN2, 224926, 152828
`D90.`	Cristovao Jacques in Brazil via RAS Obs. Moorook in South Australia, 1 in MPEC 2009-V32 -- 2009 VW
`I20`	Rio Cuarto Obs. in Argentina, 1 in MPEC 2009-V26 -- 2009 VP
`854`	Sabino Canyon Obs. in Arizona, 4 in MPECs 2009-V26, 2009-V27, 2009-V29 & 2009-V34 -- 2009 VX, 2009 VS, 2009 VQ, 2009 VP
`H36`	Sandlot Obs. in Kansas, 4 in MPECs 2009-V25, 2009-V26, 2009-V27 & 2009-V29 -- 2009 VS, 2009 VQ, 2009 VP, 2009 UD19
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-V25 -- 162273
`291`	Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2009-V25 -- 2009 UQ5, 2009 UL20, 2009 UG, 2009 UB19, 2009 TB3, 2009 RH2, 2006 HZ51
`926`	Tenagra II Obs. in Arizona, 10 in MPECs 2009-V25, 2009-V26, 2009-V27, 2009-V28, 2009-V29, 2009-V30, 2009-V32 & 2009-V34 -- 2009 VX, 2009 VW, 2009 VT, 2009 VS, 2009 VR, 2009 VQ, 2009 VP, 2009 UT87, 2009 UK20, 2009 UD19
`B18`	Terskol Obs. in Russia, 1 in MPEC 2009-V27 -- 2009 VQ
`H47`	Vicksburg Obs. in Mississippi, 2 in MPEC 2009-V25 -- 5626, 3552

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

Impact Risk Monitoring on 9 November '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 VX	JPL Sentry	2102	2040	1	1.1e-10	-10.21	-10.2	0	JPL: "Analysis based on 17 observations spanning .20513 days (2009-Nov-09.22026 to 2009-Nov-09.42539)." Diameter approximately 0.020 km. from mean, weighted H=26.2.

2009 VT	JPL Sentry	1712	2013-2101	67	2.2e-08	-5.80	-6.61	0	JPL: "Analysis based on 21 observations spanning 1.0853 days (2009-Nov-08.30784 to 2009-Nov-09.3931)." Diameter approximately 0.120 km. from mean, weighted H=22.2.

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 9 November '09

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

2358	Grabbed MPEC 2009-V35 - 2009 VZ - see above
2102	Noted that JPL Sentry has posted 2009 VX as an impact risk - see above
1939	Grabbed MPEC 2009-V34 - 2009 VX - see above
1712	Noted that JPL Sentry has posted 2009 VT as an impact risk - see above Grabbed MPEC 2009-V32 - 2009 VW - see above Grabbed MPEC 2009-V33 - 2009 HC21 - see above
1448	Grabbed MPEC 2009-V25 - Daily Orbit Update - see above Grabbed MPEC 2009-V26 - 2009 VP - see above Grabbed MPEC 2009-V27 - 2009 VQ - see above Grabbed MPEC 2009-V28 - 2009 VR - see above Grabbed MPEC 2009-V29 - 2009 VS - see above Grabbed MPEC 2009-V30 - 2009 VT - see above Grabbed MPEC 2009-V31 - 2008 DV - see above

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