2010-11-08 Tracking News

Contents on 8 November '10

Radar Astrometry -- two objects
IAU Minor Planet Center
- NEOCP Activity -- nine listings: 1 new, 8 updated
- New MPECs -- eleven MPECs
Observers -- 25 observers
Impact Risk Monitoring -- eight objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Of 361 risk-listed objects, 50 have had news in the last 30 days. Updated at 1619 UTC on 8 Nov.
Earth's Busy Neighborhood Traffic Report
Seven objects are known to be within ten LD of Earth today. Updated at 2333 UTC on 8 Nov.
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.

Radar Astrometry on 8 November '10

Radar observation of two objects

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

Data update noted at 2003 UTC when the database was dated 8 Nov.

103P/Hartley 2 from Arecibo (Oct. 25.32 range, 26.39 range, 27.32 range & 29.40 range) - see links

Data update noted at 2110 UTC when the database was dated 8 Nov.

2007 RU17 from Arecibo (Oct. 28.97 range)

NEOCP Activity on 8 November '10

The MPC's NEO Confirmation Page has 9 listings: 1 new, 8 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and eight updated listings. Of these, seven were "one nighters." So far The Tracking News has counted a total of eighteen listings on the NEOCP at some point today.

New MPECs on 8 November '10

Minor Planet Electronic Circulars

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

MPEC 2010-V79 time-stamped "07:11 UT" - Daily Orbit Update - see below
MPEC 2010-V80 time-stamped "10:17 UT" - 2006 ON1 - see below
MPEC 2010-V81 time-stamped "12:46 UT" - 2010 VA40 - see below
MPEC 2010-V82 time-stamped "12:50 UT" - 2010 VB40 - see below
MPEC 2010-V83 time-stamped "12:54 UT" - 2010 VC40 - see below
MPEC 2010-V84 time-stamped "16:07 UT" - 2009 KK30 - see below
MPEC 2010-V85 time-stamped "16:29 UT" - 2009 KL30 - see below
MPEC 2010-V86 time-stamped "18:38 UT" - 2010 VL65 - see below
MPEC 2010-V87 time-stamped "19:55 UT" - 2009 KN30 - see below
MPEC 2010-V88 time-stamped "20:04 UT" - 2009 KO30 - see below
MPEC 2010-V89 time-stamped "23:50 UT" - 2010 SB41

MPEC 2010-V89 - "23:50 UT" - 2010 SB41

K10S41B 2010 SB41 (q=28.822 AU, Q=50.345 AU, H=8.4 ~70.8 km) from Pan-STARRS 1 (PS1) (Sept. 16.44-47p3 at w=22.9-23.0 & Oct. 4.41-46p4 at w=22.3-23.0) and Lulin Minor Bodies Tracking (LIMIT) (Nov. 1.47p1, 1.54p1, 1.62p1 & 1.69p1)

MPEC 2010-V88 - "20:04 UT" - 2009 KO30

K09K30O 2009 KO30 (KBO, q=41.360 AU, Q=47.155 AU, H=8.6 ~64.5 km) from Mauna Kea (June 11.27p5 at V=24.8 & 11.41-42p5)

MPEC 2010-V87 - "19:55 UT" - 2009 KN30

K09K30N 2009 KN30 (q=30.495 AU, Q=108.428 AU, H=7.9 ~89.1 km) from Mauna Kea (June 10.45-47p2, 11.27-28p5 at V=22.6 & 11.42p5)

MPEC 2010-V86 - "18:38 UT" - 2010 VL65

K10V65L 2010 VL65 (small asteroid, Earth MOID=2.8 LD, H=28.4 ~7m) from LINEAR (Nov. 6.26-31p5 & 7.27-31p4) This object is now within ten lunar distances (LD) of Earth, reaching 2.6 LD on 10 Nov.

MPEC 2010-V85 - "16:29 UT" - 2009 KL30

K09K30L 2009 KL30 (KBO, q=36.649 AU, Q=54.700 AU, H=7.5 ~107 km) from Mauna Kea (June 11.27p1 at V=24.8 & 11.41-42p2)

MPEC 2010-V84 - "16:07 UT" - 2009 KK30

K09K30K 2009 KK30 (q=38.569 AU, Q=78.597 AU, H=7.1 ~129 km) from Mauna Kea (June 11.27p4 at V=23.3 & 11.41-42p5)

MPEC 2010-V83 - "12:54 UT" - 2010 VC40

K10V40C 2010 VC40 (small asteroid, H=24.0 ~54m) from the Mt. Lemmon Survey (MLS) (Nov. 7.28-33p4 at V=21.3-22.4 & 7.37-38p4 at V=21.1-22.1) and Magdalena Ridge Obs. (MRO) (Nov. 8.10-12p4)

MPEC 2010-V82 - "12:50 UT" - 2010 VB40

K10V40B 2010 VB40 (small asteroid, Q=4.505 AU, H=24.7 ~39m) from MLS (Nov. 6.37-40p4, 6.50-51p4, 8.37-39p4 & 8.46-49p4) and MRO (Nov. 8.48-50p4)

MPEC 2010-V81 - "12:46 UT" - 2010 VA40

K10V40A 2010 VA40 (small asteroid, H=26.3 ~19m) from MLS (Nov. 6.31-33p4 & 7.37-38p4), MRO (Nov. 7.48-51p3 & 8.25-29p4), and Astronomical Research Obs. Westfield (Nov. 8.34-35p3)

MPEC 2010-V80 - "10:17 UT" - 2006 ON1

K06O01N 2006 ON1 (Q=4.110 AU, H=21.3 ~186m) from MLS (Nov. 8.09-11p4 & 8.17-20p4) and MRO (Nov. 8.15-18p4)

<< DOU on 8 Nov. '10 >> MPEC 2010-V79 - "07:11 UT" - Daily Orbit Update

Observations of risk-listed objects
K10V21V 2010 VV21 (small asteroid, arc=1 day, H=23.0 ~85m) from ARO Westfield (Nov. 7.33-34p3) and MLS (Nov. 7.37-42p8)
K10V21U 2010 VU21 (small asteroid, arc=2 days, H=24.8 ~37m) from the Spacewatch 1.8m telescope (Nov. 8.22-27p6)
K10V21Q 2010 VQ21 (small asteroid, arc=2 days, H=22.1 ~129m) from ARO Westfield (Nov. 7.12-14p3) and Spacewatch 1.8m (Nov. 8.09-10p3)
K10V01N 2010 VN1 (small asteroid, arc=4 days, H=28.3 ~7m) from ARO Westfield (Nov. 7.29-32p3 at V=21.6-22.1) and Spacewatch 1.8m (Nov. 8.24-25p3 at V=21.7-22.4)
K10V01H 2010 VH1 (i=40.9°, arc=4 days, H=21.2 ~195m) from ARO Westfield (Nov. 7.22-23p2)
K10V00Z 2010 VZ (arc=5 days, H=19.4 ~446m) from ARO Westfield (Nov. 7.00-02p3)
K10V00Q 2010 VQ (small asteroid, arc=6 days, H=27.7 ~10m) from ARO Westfield (Nov. 7.11-14p3 at V=21.9-22.4)
Observations of recently (no longer) risk-listed objects
K10V01G 2010 VG1 (arc=5 days, H=20.4 ~282m) from ARO Westfield (Nov. 7.00-02p3) and Spacewatch 1.8m (Nov. 8.13-14p3)
K10V01E 2010 VE1 (arc=6 days, H=20.0 ~339m) from ARO Westfield (Nov. 7.24-27p3 at V=21.8-22.3) and Spacewatch 1.8m (Nov. 8.21p3)
K10V00P 2010 VP (small asteroid, arc=7 days, H=23.9 ~56m) from Spacewatch 1.8m (Nov. 8.17-18p3)
K10U51E 2010 UE51 (small asteroid, arc=9 days, H=28.2 ~8m) from Wiggins Obs. (Nov. 7.24-28p5)
K10U06X 2010 UX6 (small asteroid, arc=10 days, H=23.0 ~85m) from Frasso Sabino Obs. (Nov. 4.88-89p4), Castelmartini Obs. (Nov. 4.92-93p3), and Balzaretto Obs. (Nov. 6.81-82p3)
Observations of small asteroids (H>22.0)
K10V21R 2010 VR21 (Q=4.028 AU, arc=1 day, H=29.2 ~5m) from ARO Westfield (Nov. 7.24-25p5)
K10V11Z 2010 VZ11 (arc=3 days, H=25.3 ~29m) from Balzaretto Obs. (Nov. 6.86p3)
K10V01O 2010 VO1 (arc=3 days, H=25.7 ~25m) from ARO Westfield (Nov. 7.17-18p4)
K10V00Y 2010 VY (arc=5 days, H=24.9 ~35m) from ARO Westfield (Nov. 7.28-31p3 at V=21.8-22.3)
K10V00R 2010 VR (arc=5 days, H=24.4 ~45m) from ARO Westfield (Nov. 7.34-35p5)
K10V00B 2010 VB (arc=7 days, H=25.5 ~27m) from Castelmartini Obs. (Nov. 5.05p5 & 5.99p5), Doc Greiner Research Obs. (DGRO) (Nov. 6.15p5), ARO Westfield (Nov. 7.23-24p5), and Great Shefford Obs. (Nov. 7.75-76p3)
K10U07V 2010 UV7 (arc=8 days, H=22.3 ~117m) from MLS (Nov. 7.23-25p4 at V=20.7-22.6)
K10S15H 2010 SH15 (arc=39 days, H=22.6 ~102m) from ARO Westfield (Nov. 7.04-09p3 at V=22.8-23.2)
K08E00L 2008 EL (arc=2 opp, H=22.2 ~123m) from the Siding Spring Survey (SSS) (Nov. 7.54-55p10)
Observations of other objects
K10V11T 2010 VT11 (arc=6 days, H=21.4 ~178m) from Modra Obs. (Nov. 5.76-77p3), Balzaretto Obs. (Nov. 6.79-80p4), ARO Westfield (Nov. 7.07-08p4), and DGRO (Nov. 8.02p3)
K10V01L 2010 VL1 (Q=4.276 AU, arc=4 days, H=20.5 ~269m) from Sandlot Obs. (Nov. 7.28-29p2)
K10V01C 2010 VC1 (arc=5 days, H=19.3 ~467m) from Sandlot Obs. (Nov. 7.25-27p3) and ARO Westfield (Nov. 7.26-27p3)
K10V00E 2010 VE (arc=6 days, H=19.7 ~389m) from ARO Westfield (Nov. 7.09-11p3)
K10U08B 2010 UB8 (Q=4.894 AU, arc=11 days, H=19.6 ~407m) from Spacewatch 1.8m (Nov. 7.37-39p3)
K10U07S 2010 US7 (i=55.3°, arc=9 days, H=18.8 ~589m) from Modra Obs. (Nov. 6.18-19p4) and the Spacewatch 0.9m telescope (Nov. 7.47p3)
K10U07Q 2010 UQ7 (Q=4.125 AU, arc=8 days, H=20.0 ~339m) from Frasso Sabino Obs. (Nov. 4.87-88p3), Castelmartini Obs. (Nov. 4.88-89p3), and Balzaretto Obs. (Nov. 6.83-84p3)
K10U00D 2010 UD (arc=19 days, H=21.1 ~204m) from Modra Obs. (Nov. 5.81-82p2)
K10TG8X 2010 TX168 (arc=28 days, H=20.0 ~339m) from Frasso Sabino Obs. (Nov. 4.86p4) and DGRO (Nov. 7.99-00p7)
K10TG7J 2010 TJ167 (arc=25 days, H=21.1 ~204m) from Spacewatch 1.8m (Nov. 8.08p3)
K10TE9V 2010 TV149 (arc=24 days, H=18.5 ~676m) from ARO Westfield (Nov. 7.17-19p5)
K10T55C 2010 TC55 (Q=4.608 AU, arc=26 days, H=20.2 ~309m) from Frasso Sabino Obs. (Nov. 4.91p4) and Castelmartini Obs. (Nov. 4.97p3)
K10T54Y 2010 TY54 (arc=27 days, H=21.5 ~170m) from ARO Westfield (Nov. 7.32-33p3)
K10T54U 2010 TU54 (arc=28 days, H=21.4 ~178m) from Spacewatch 1.8m (Nov. 7.33-34p3)
K10T54J 2010 TJ54 (arc=2 opp, H=19.8 ~371m) from the Catalina Sky Survey (CSS) (Nov. 7.40-42p4)
K10T47C 2010 TC47 (arc=30 days, H=20.5 ~269m) from Frasso Sabino Obs. (Nov. 4.89-90p3) and Castelmartini Obs. (Nov. 4.93p3)
K10T07J 2010 TJ7 (arc=32 days, H=19.7 ~389m) from Pear Tree Obs. (Nov. 7.02-04p3)
K10RH9R 2010 RR179 (Q=4.251 AU, arc=66 days, H=21.1 ~204m) from ARO Westfield (Nov. 7.03-06p3)
K10R80P 2010 RP80 (Q=4.721 AU, arc=57 days, H=20.8 ~234m) from Frasso Sabino Obs. (Nov. 4.95-96p4)
K10R80N 2010 RN80 (arc=56 days, H=20.2 ~309m) from Baja Obs. (Oct. 30.80-83p2)
K10R43K 2010 RK43 (arc=62 days, H=20.7 ~245m) from ARO Westfield (Nov. 7.21-23p3)
K10P10M 2010 PM10 (arc=91 days, H=19.7 ~389m) from Castelmartini Obs. (Nov. 5.00p3)
K10L63Y 2010 LY63 from Modra Obs. (Nov. 5.78-79p6)
K08Y32U 2008 YU32 (arc=2 opp, H=19.9 ~355m) from Cordell-Lorenz Obs. (Nov. 7.32-33p4)
K07VD8C 2007 VC138 (arc=2 opp, H=19.3 ~467m) from Modra Obs. (Nov. 5.72-73p4)
K07E88M 2007 EM88 (arc=3 opp, H=19.4 ~446m) from Eastern Illinois Univ. Obs. (Nov. 7.37-38p3)
K07B02T 2007 BT2 (arc=4 opp, H=17.0 ~1.35 km) from EIU Obs. (Nov. 7.39-40p3)
K06V14B 2006 VB14 (arc=3 opp, H=18.5 ~676m) from EIU Obs. (Nov. 7.48-49p3)
K06R55A 2006 RA55 (arc=2 opp, H=19.4 ~446m) from Spacewatch 1.8m (Nov. 7.46-47p3 at V=22.3)
K06O09S 2006 OS9 (q=0.265 AU, Q=5.223 AU, arc=3 opp, H=17.8 ~933m) from SSS (Nov. 7.57p1)
K04E00B 2004 EB (Q=5.185 AU, arc=3 opp, H=17.2 ~1.23 km) from MLS (Nov. 7.23-25p4)
K03U11V 2003 UV11 from Baja Obs. (Oct. 28.73-74p3 & 28.86p2)
K03T07X 2003 TX7 (i=38.7°, arc=4 opp, H=19.3 ~467m) from EIU Obs. (Nov. 7.20-21p3)
K03M04J 2003 MJ4 (arc=2 opp, H=18.9 ~562m) from EIU Obs. (Nov. 7.28-29p3)
K02V68E 2002 VE68 (arc=3 opp, H=20.4 ~282m) from Pear Tree Obs. (Nov. 7.09-12p3), Taurus-1 Obs. (Nov. 7.77-78p27), Great Shefford Obs. (Nov. 7.79p3), and DGRO (Nov. 7.99p8)
K00P27Q 2000 PQ27 (arc=2 opp, H=19.9 ~355m) from CSS (Nov. 7.23-25p4)
J99T12K 1999 TK12 (arc=3 opp, H=18.2 ~776m) from Frasso Sabino Obs. (Nov. 4.84p3)
O2211 242211 2003 QB90 from Castelmartini Obs. (Nov. 5.96p2)
L9071 219071 1997 US9 from CSS (Nov. 7.39-42p4)
G2781 162781 2000 XL44 from CSS (Nov. 7.49-51p4)
G2472 162472 2000 LL from EIU Obs. (Nov. 7.34p3)
F4300 154300 2002 UO from CSS (Nov. 7.33-35p3)
F3591 153591 2001 SN263 from CSS (Nov. 7.51-52p4)
D8859 138859 2000 WN63 from MLS (Nov. 7.43-44p3)
B2221 112221 2002 KH4 from MLS (Nov. 7.41-42p4)
A0926 100926 1998 MQ from Modra Obs. (Nov. 4.95-01p7 & 5.99-02p4)
88959 88959 2001 TZ44 from Castelmartini Obs. (Nov. 5.95p3)
85867 85867 1999 BY9 from MLS (Nov. 7.26-28p4)
85182 85182 1991 AQ from CSS (Nov. 7.52p4)
21374 21374 1997 WS22 from CSS (Nov. 7.46-48p3)

Observers on 8 November '10

A total of 25 observers appear in today's MPECs.

Code	Observer / observatory
`251`	Arecibo in Puerto Rico, 2 in radar -- 2007 RU17, 103P
`H21`	Astronomical Research Obs. Westfield in Illinois, 22 in MPECs 2010-V79 & 2010-V81 -- 2010 VZ, 2010 VY, 2010 VV21, 2010 VT11, 2010 VR21, 2010 VR, 2010 VQ21, 2010 VQ, 2010 VO1, 2010 VN1, 2010 VH1, 2010 VG1, 2010 VE1, 2010 VE, 2010 VC1, 2010 VB, 2010 VA40, 2010 TY54, 2010 TV149, 2010 SH15, 2010 RR179, 2010 RK43
`C34`	Baja Obs. in Hungary, 2 in MPEC 2010-V79 -- 2010 RN80, 2003 UV11
`A81`	Balzaretto Obs. in Italy, 4 in MPEC 2010-V79 -- 2010 VZ11, 2010 VT11, 2010 UX6, 2010 UQ7
`160`	Castelmartini Obs. in Italy, 8 in MPEC 2010-V79 -- 2010 VB, 2010 UX6, 2010 UQ7, 2010 TC55, 2010 TC47, 2010 PM10, 88959, 242211
`703`	Catalina Sky Survey (CSS) in Arizona, 8 in MPEC 2010-V79 -- 2010 TJ54, 2000 PQ27, 85182, 219071, 21374, 162781, 154300, 153591
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2010-V79 -- 2008 YU32
`H26`	Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPEC 2010-V79 -- 2010 VT11, 2010 VB, 2010 TX168, 2002 VE68
`H20`	Eastern Illinois Univ. Obs. in Illinois, 6 in MPEC 2010-V79 -- 2007 EM88, 2007 BT2, 2006 VB14, 2003 TX7, 2003 MJ4, 162472
`157`	Frasso Sabino Obs. in Italy, 7 in MPEC 2010-V79 -- 2010 UX6, 2010 UQ7, 2010 TX168, 2010 TC55, 2010 TC47, 2010 RP80, 1999 TK12
`J95`	Great Shefford Obs. in England, 2 in MPEC 2010-V79 -- 2010 VB, 2002 VE68
`704`	LINEAR in New Mexico, 1 in MPEC 2010-V86 -- 2010 VL65
`D35`	Lulin Minor Bodies Tracking in Taiwan, 1 in MPEC 2010-V89 -- 2010 SB41
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2010-V80, 2010-V81, 2010-V82 & 2010-V83 -- 2010 VC40, 2010 VB40, 2010 VA40, 2006 ON1
`568`	Mauna Kea in Hawaii, 4 in MPECs 2010-V84, 2010-V85, 2010-V87 & 2010-V88 -- 2009 KO30, 2009 KN30, 2009 KL30, 2009 KK30
`118`	Modra Obs. in Slovakia, 6 in MPEC 2010-V79 -- 2010 VT11, 2010 US7, 2010 UD, 2010 LY63, 2007 VC138, 100926
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 10 in MPECs 2010-V79, 2010-V80, 2010-V81, 2010-V82 & 2010-V83 -- 2010 VV21, 2010 VC40, 2010 VB40, 2010 VA40, 2010 UV7, 2006 ON1, 2004 EB, 85867, 138859, 112221
`F51`	Pan-STARRS 1 in Hawaii, 1 in MPEC 2010-V89 -- 2010 SB41
`H23`	Pear Tree Obs. in Florida, 2 in MPEC 2010-V79 -- 2010 TJ7, 2002 VE68
`H36`	Sandlot Obs. in Kansas, 2 in MPEC 2010-V79 -- 2010 VL1, 2010 VC1
`E12`	Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2010-V79 -- 2008 EL, 2006 OS9
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-V79 -- 2010 US7
`291`	Spacewatch 1.8m telescope in Arizona, 10 in MPEC 2010-V79 -- 2010 VU21, 2010 VQ21, 2010 VP, 2010 VN1, 2010 VG1, 2010 VE1, 2010 UB8, 2010 TU54, 2010 TJ167, 2006 RA55
`A98`	Taurus-1 Obs. in Belarus, 1 in MPEC 2010-V79 -- 2002 VE68
`718`	Wiggins Obs. in Utah, 1 in MPEC 2010-V79 -- 2010 UE51

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

Impact Risk Monitoring on 8 November '10

**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. Both also post impact solutions beyond 100 years for a few special 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

2010 VX39	NEODyS	1617	2022-2088	2	9.1e-10	-5.65	-5.7	0	NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2010-11-05.434 to 2010-11-07.489."

2010 VV21	NEODyS	1617	R E M O V E D						-

2010 VU21	JPL Sentry	1617	R E M O V E D						JPL: Risk listing removed at 1136 UTC.
2010 VU21	NEODyS	1617	R E M O V E D						-

2010 VQ21	JPL Sentry	1617	R E M O V E D						JPL: Risk listing removed at 1131 UTC.
2010 VQ21	NEODyS	1617	R E M O V E D						-

2010 VN1	JPL Sentry	1617	2050-2066	4	1.8e-06	-7.34	-7.50	0	JPL: "Analysis based on 45 observations spanning 4.2378 days (2010-Nov-04.00752 to 2010-Nov-08.24534)." Diameter approximately 0.007 km. from mean, weighted H=28.4.
2010 VN1	NEODyS	1617	2046-2060	4	1.69e-06	-7.33	-7.52	0	NEODyS: "Based on 46 optical observations (of which 1 are rejected as outliers) from 2010-11-03.996 to 2010-11-08.246."

2010 VH1	JPL Sentry	1617	2039	1	2.4e-10	-7.08	-7.08	0	JPL: "Analysis based on 20 observations spanning 3.9666 days (2010-Nov-03.26049 to 2010-Nov-07.22712)." Diameter approximately 0.220 km. from mean, weighted H=20.9.
2010 VH1	NEODyS	1617	R E M O V E D						-

2010 VZ	JPL Sentry	1617	2086-2098	2	1.1e-09	-6.39	-6.43	0	JPL: "Analysis based on 32 observations spanning 5.0264 days (2010-Nov-02.07441 to 2010-Nov-07.10082)." Diameter approximately 0.460 km. from mean, weighted H=19.3.

2010 VQ	JPL Sentry	1617	2034-2087	31	1.6e-04	-5.04	-5.18	0	JPL: "Analysis based on 25 observations spanning 5.7944 days (2010-Nov-01.34102 to 2010-Nov-07.135444)." Diameter approximately 0.010 km. from mean, weighted H=27.7.
2010 VQ	NEODyS	1617	2034-2089	41	1.45e-04	-5.07	-5.18	0	NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2010-11-01.342 to 2010-11-07.136."

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 November '10

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

2359	Grabbed MPEC 2010-V89 - 2010 SB41 - see above
2110	Grabbed MPEC 2010-V88 - 2009 KO30 - see above Noted Radar Astrometry database update - see above
2003	Grabbed MPEC 2010-V87 - 2009 KN30 - see above Noted Radar Astrometry database update - see above
1903	Grabbed MPEC 2010-V86 - 2010 VL65 - see above
1701	Grabbed MPEC 2010-V84 - 2009 KK30 - see above Grabbed MPEC 2010-V85 - 2009 KL30 - see above
1617	Noted that JPL Sentry has updated its 2010 VH1 risk assessment - see above Noted that NEODyS has removed 2010 VH1 as an impact risk - see above Noted that JPL Sentry has updated its 2010 VN1 risk assessment - see above Noted that NEODyS has updated its 2010 VN1 risk assessment - see above Noted that JPL Sentry has updated its 2010 VQ risk assessment - see above Noted that NEODyS has updated its 2010 VQ risk assessment - see above Noted that JPL Sentry has removed 2010 VQ21 as an impact risk - see above Noted that NEODyS has removed 2010 VQ21 as an impact risk - see above Noted that JPL Sentry has removed 2010 VU21 as an impact risk - see above Noted that NEODyS has removed 2010 VU21 as an impact risk - see above Noted that NEODyS has removed 2010 VV21 as an impact risk - see above Noted that NEODyS has posted 2010 VX39 as an impact risk - see above Noted that JPL Sentry has updated its 2010 VZ risk assessment - see above Grabbed MPEC 2010-V79 - Daily Orbit Update - see above Grabbed MPEC 2010-V80 - 2006 ON1 - see above Grabbed MPEC 2010-V81 - 2010 VA40 - see above Grabbed MPEC 2010-V82 - 2010 VB40 - see above Grabbed MPEC 2010-V83 - 2010 VC40 - see above

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