2010-09-02 Tracking News

Contents on 2 September '10

IAU Minor Planet Center
- NEOCP Activity -- twelve listings: 1 new, 11 updated
- New MPECs -- seven MPECs
Observers -- 63 observing facilities
Impact Risk Monitoring -- two objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Of 321 risk-listed objects, 12 have had news in the last 30 days. Updated at 1508 UTC.
Earth's Busy Neighborhood Traffic Report
One object is known to be within ten LD of Earth today. Updated at 1731 UTC.
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 2 September '10

The MPC's NEO Confirmation Page has 12 listings: 1 new, 11 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and eleven updated listings. Of these, seven were "one nighters." So far The Tracking News has counted a total of seventeen 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 2 September '10

Minor Planet Electronic Circulars

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

MPEC 2010-R05 time-stamped "06:07 UT" - Daily Orbit Update - see below
MPEC 2010-R06 time-stamped "12:35 UT" - 2010 RB - see below
MPEC 2010-R07 time-stamped "12:43 UT" - 2010 RC - see below
MPEC 2010-R08 time-stamped "13:00 UT" - 2010 RD - see below
MPEC 2010-R09 time-stamped "13:11 UT" - 2010 RE - see below
MPEC 2010-R10 time-stamped "13:21 UT" - 2010 RF - see below
MPEC 2010-R11 time-stamped "18:17 UT" - Observations of Comets

MPEC 2010-R11 - "18:17 UT" - Observations of Comets

CK10J020 C/2010 J2 (McNaught) from Castelmartini Obs. (Aug. 28.91-92p3), Modra Obs. (Aug. 29.84-85p4), and La Vara Obs. (Aug. 29.93p3)
CK10G020 C/2010 G2 (Hill) from Castelmartini Obs. (Aug. 25.82-83p3), Maidbronn Obs. (Aug. 31.83-84p3), RAS Obs. Mayhill (Sept. 1.12-13p3), Osaki Obs. (Sept. 1.47-48p2), Montcabre Obs. (Sept. 1.80-83p3), La Vara Obs. (Sept. 1.85-86p3), and Casasco Obs. (Sept. 1.85p1 & 1.91p1)
CK10B010 C/2010 B1 (Cardinal) from RAS Mayhill (Aug. 21.47p3), Ageo Obs. (Aug. 25.76-77p2), and ISON-NM Obs. (Sept. 1.45-47p4)
CK09Y010 C/2009 Y1 (Catalina) from Maidbronn Obs. (Aug. 21.87-89p3), Ageo Obs. (Aug. 25.78-79p2), and Santa Maria de Montmagastrell Obs. (Aug. 31.88-89p3)
CK09U89G C/2009 UG89 (Lemmon) from Ageo Obs. (Aug. 7.55-56p2), Castelmartini Obs. (Aug. 28.90-91p3), Modra Obs. (Aug. 29.81p2), La Vara Obs. (Aug. 29.91-92p3 & Sept. 1.94-95p3), Maidbronn Obs. (Aug. 31.89-90p3), and Kurihara Obs. (Sept. 1.47p4)
CK09K050 C/2009 K5 (McNaught) from Szeged Obs. (June 9.85-86p2), Yatsuka Obs. (Aug. 14.80p3), Smolyan Obs. (Aug. 19.07-09p6), and Monte Deva Obs. (Aug. 30.08-11p5)
CK08F75K C/2008 FK75 (Lemmon-Siding Spring) from Remanzacco Obs. (July 31.85p2), Szeged Obs. (Aug. 2.85-87p2), Odessa-Mayaki Obs. (Aug. 22.86-89p7), Hobbs Obs. (Aug. 28.13-17p3), Carmelita Obs. (Aug. 28.81-82p3 & 29.86-88p3), Blanquita Obs. (Aug. 28.84-86p3), Castelmartini Obs. (Aug. 28.88p3), La Vara Obs. (Aug. 29.89-90p3 & 30.91-92p3), Monte Deva Obs. (Aug. 29.93-94p5 & 30.89-91p5), Kiev Comet Station (Aug. 30.79-82p4), Jaen Obs. (Aug. 30.89-92p3), Maidbronn Obs. (Aug. 31.87-88p3), Corner Obs. (Sept. 1.89-96p4), and GiaGa Obs. (Sept. 1.90p1 & 1.94p1)
CK07V53O C/2007 VO53 (Spacewatch) from LINEAR (Aug. 28.16-18p3), La Vara Obs. (Aug. 29.97-98p3 & 30.93-94p3), and Santa Maria de M. Obs. (Aug. 31.86-88p3)
CK07Q03a C/2007 Q3-A (Siding Spring A) from Odessa-Mayaki Obs. (July 16.02-03p4), Szeged Obs. (Aug. 2.83-84p2), Smolyan Obs. (Aug. 18.88-90p6), Hobbs Obs. (Aug. 28.13-17p3), Maidbronn Obs. (Aug. 28.85-86p3 & 31.81p3), Carmelita Obs. (Aug. 28.86p3 & 29.84-85p3), Jaen Obs. (Aug. 28.90-91p2), La Vara Obs. (Aug. 29.87-88p3 & 30.89-90p3), Isle of Man Obs. (Aug. 29.87-88p4), Monte Deva Obs. (Aug. 29.90-92p5 & 30.86-87p5), Kurihara Obs. (Sept. 1.46p3), and Nazaret Obs. (Sept. 1.85-86p3)
CK06S030 C/2006 S3 (LONEOS) from Szeged Obs. (Aug. 2.97-98p2), Ageo Obs. (Aug. 11.54-55p2), Smolyan Obs. (Aug. 16.94-95p4), Odessa-Mayaki Obs. (Aug. 18.95-98p9 & 21.01-03p10), Four Winds Obs. (Aug. 28.10-12p2), Krasnoyarsk Obs. (Aug. 28.62-66p5 & Sept. 1.62p2), Vallauris Obs. (Aug. 28.82-85p2), Castelmartini Obs. (Aug. 28.96-97p3), La Vara Obs. (Aug. 29.94-95p3 & 30.95-96p3), Monte Deva Obs. (Aug. 29.00-03p5 & 30.96-01p5), Maisoncelles Obs. (Aug. 30.91-92p3), Atlante Obs. (Aug. 30.91-93p3), Cielo Profundo Obs. (Aug. 30.94-95p3), Brixiis Obs. (Aug. 31.91-92p4), Kurihara Obs. (Sept. 1.49p3), and GiaGa Obs. (Sept. 1.88p1 & 1.93p1)
CK06Q010 C/2006 Q1 (McNaught) from Bootes Obs. (Aug. 28.91-93p2) and La Vara Obs. (Aug. 30.87-88p3 & Sept. 1.87p2)
0236P 236P/LINEAR from Cielo Profundo Obs. (Aug. 30.06-07p3) and Vicksburg Obs. (Sept. 1.33-37p3 & 2.36-38p4)
0215P 215P/NEAT from Moriyama Obs. (Aug. 4.64-65p2) and Ageo Obs. (Aug. 11.57-58p2)
0103P 103P/Hartley 2 from Ceccano Obs. (July 23.05-06p3 & Aug. 19.98p3), Odessa-Mayaki Obs. (July 31.82-83p9, Aug. 1.82p3, 15.03-08p10, 18.96-01p7 & 21.04-06p9), Irmtraut Obs. (Aug. 20.01-03p5), Nazaret Obs. (Aug. 20.19p1), Stixendorf Obs. (Aug. 22.87-89p6), Ageo Obs. (Aug. 25.62-63p2), Bootes Obs. (Aug. 27.97-99p4 & 28.99-03p4), Vicksburg Obs. (Aug. 28.21-25p3 & Sept. 1.25-29p4), Krasnoyarsk Obs. (Aug. 28.63p2, 28.67-68p2 & Sept. 1.59-60p2), Blanquita Obs. (Aug. 28.87-88p3), Castelmartini Obs. (Aug. 29.02-03p3), Four Winds Obs. (Aug. 29.09-12p5), Gieres Obs. (Aug. 29.89-95p6), Atlante Obs. (Aug. 29.95-97p3 & 30.95-97p3), La Vara Obs. (Aug. 29.96p3 & Sept. 1.93p3), Sierra Stars Obs. (Aug. 30.30-39p4), Kramatorsk Obs. (Aug. 30.74-75p5), Kiev Comet Station (Aug. 30.84p1 & 30.90-94p15), Jaen Obs. (Aug. 30.85-87p3), Monte Deva Obs. (Aug. 31.04-05p5), Brixiis Obs. (Aug. 31.88-91p6), Cordell-Lorenz Obs. (Sept. 1.34-39p4 & 2.34-37p3), Kurihara Obs. (Sept. 1.50-51p4), Montcabre Obs. (Sept. 1.87p3), Casasco Obs. (Sept. 1.88p1 & 1.92p1), and Maidbronn Obs. (Sept. 2.05-06p3)
0081P 81P/Wild 2 from Montcabre Obs. (Aug. 20.82-83p3) and RAS Mayhill (Sept. 1.11-12p5)
0065P 65P/Gunn from Los Molinos Obs. (Aug. 25.25-27p3), Chante-Perdrix Obs. (Aug. 28.85-88p3), Monte Deva Obs. (Aug. 29.95-97p5), and Maisoncelles Obs. (Aug. 30.88-89p2)
0049P 49P/Arend-Rigaux from Faulkes Telescope North (Aug. 6.37-39p3 & 30.28-29p2)
0010P 10P/Tempel 2 from Yatsuka Obs. (Aug. 14.77p3), Odessa-Mayaki Obs. (Aug. 15.01-02p4, 15.06p3, 18.99-02p5, 21.05-08p9 & 23.04-07p7), Ageo Obs. (Aug. 15.74-75p3), Nazaret Obs. (Aug. 20.21-22p2), Krasnoyarsk Obs. (Aug. 28.81-84p2), Castelmartini Obs. (Aug. 29.04p3), Atlante Obs. (Aug. 29.15-17p3, 31.08p1, 31.14p1 & 31.20p1), Monte Deva Obs. (Aug. 30.06-07p3), Cielo Profundo Obs. (Aug. 30.09-12p3), Maidbronn Obs. (Sept. 2.11-13p3), and Vicksburg Obs. (Sept. 2.43-44p3)

MPEC 2010-R10 - "13:21 UT" - 2010 RF

K10R00F 2010 RF (small asteroid, H=23.2 ~78m) was discovered at 0925 UT on 1 Sept. by the Mt. Lemmon Survey (MLS), which observed it at Sept. 1.39-45p7. The discovery was confirmed by Sormano Obs. (Sept. 1.84p3), Eschenberg Obs. (Sept. 1.88-89p3), Remanzacco Obs. (Sept. 1.89p2), Great Shefford Obs. (Sept. 1.90-92p3), Libbiano Obs. (Sept. 1.95-96p4), ESA Optical Ground Station (ESA OGS) (Sept. 1.00-01p3), and the Spacewatch 1.8m telescope (Sept. 2.17-18p2).

MPEC 2010-R09 - "13:11 UT" - 2010 RE

K10R00E 2010 RE (small asteroid, Earth MOID=9.5 LD, H=27.5 ~11m) was discovered at 0925 UT on 1 Sept. by MLS, which observed it at Sept. 1.39-45p9 and 2.22-24p4. The discovery was confirmed by Great Shefford Obs. (Sept. 1.94-95p2).

MPEC 2010-R08 - "13:00 UT" - 2010 RD

K10R00D 2010 RD (small asteroid, H=25.5 ~27m) was discovered at 0908 UT on 1 Sept. by MLS, which observed it at Sept. 1.38-40p7, 1.46p1, and 2.23-25p3.

MPEC 2010-R07 - "12:43 UT" - 2010 RC

K10R00C 2010 RC (small asteroid, Earth MOID=8.4 LD, H=26.6 ~16m) was discovered at 0720 UT on 1 Sept. by LINEAR, which observed it at Sept. 1.31-35p4. The discovery was confirmed by MLS (Sept. 2.29-31p4). This object was within ten lunar distances (LD) of Earth, reaching 9.9 LD on 1 Sept.

MPEC 2010-R06 - "12:35 UT" - 2010 RB

K10R00B 2010 RB (H=20.1 ~323m) was discovered at 0558 UT on 1 Sept. by LINEAR, which observed it at Sept. 1.25-30p3. The discovery was confirmed by MLS (Sept. 2.20-22p4) and Chabot Obs. (Sept. 2.25-26p3).

<< DOU on 2 Sept. '10 >> MPEC 2010-R05 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K10Q02G 2010 QG2 (small asteroid, arc=2 days, H=24.2 ~49m) from Great Shefford Obs. (Sept. 1.99-03p6)
K10P65S 2010 PS65 (small asteroid, Q=4.628 AU, arc=19 days, H=24.7 ~39m) from Astronomical Research Obs. Westfield (Sept. 1.25-30p3) and Spacewatch 1.8m (Sept. 1.28p3 at V=21.9-22.3)
Observations of recently (no longer) risk-listed objects
K10P09M 2010 PM9 (arc=25 days, H=20.1 ~323m) from Smolyan Obs. (Aug. 19.04p3)
K10K00H 2010 KH (Q=4.284 AU, arc=108 days, H=19.7 ~389m) from Spacewatch 1.8m (Sept. 1.45-46p3)
Observations of small asteroids (H>22.0)
K10R00A 2010 RA (arc=1 day, H=22.9 ~89m) from LINEAR (Sept. 1.31-35p5), Libbiano Obs. (Sept. 1.90-92p4), and ESA OGS (Sept. 1.99-00p3)
K10P57D 2010 PD57 (arc=23 days, H=22.6 ~102m) from Spacewatch 1.8m (Sept. 1.25-26p3 & 2.20-21p3)
K10P02Q 2010 PQ2 (arc=29 days, H=24.6 ~41m) from Spacewatch 1.8m (Sept. 1.32-33p3)
K10C55B 2010 CB55 (arc=189 days, H=22.7 ~98m) from Smolyan Obs. (Aug. 17.04p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K10P66U 2010 PU66 (arc=29 days, H=21.9 ~141m) from ESA OGS (Sept. 1.17-18p3) and Spacewatch 1.8m (Sept. 1.31-32p3)
Observations of other objects
K10P66S 2010 PS66 from ARO Westfield (Aug. 31.27-28p3)
K10P22Y 2010 PY22 (arc=20 days, H=19.3 ~467m) from Smolyan Obs. (Aug. 16.92-93p3)
K10P10M 2010 PM10 (arc=26 days, H=19.7 ~389m) from Smolyan Obs. (Aug. 19.02-03p3), ARO Westfield (Sept. 1.21-23p4), and LINEAR (Sept. 1.43-47p5)
K10P02P 2010 PP2 (arc=29 days, H=21.2 ~195m) from ARO Westfield (Sept. 1.19-20p4)
K10O22E 2010 OE22 (Q=4.310 AU, arc=46 days, H=21.4 ~178m) from Spacewatch 1.8m (Sept. 1.24p3)
K10NB7W 2010 NW117 (arc=54 days, H=18.1 ~812m) from Smolyan Obs. (Aug. 18.93-94p3)
K10N01Z 2010 NZ1 from Spacewatch 1.8m (Sept. 1.29-30p3)
K10M01F 2010 MF1 (arc=75 days, H=19.7 ~389m) from Eschenberg Obs. (Sept. 1.79p3), Verona Obs. (Sept. 1.86-87p4), and Santa Mama Obs. (Sept. 1.90-92p5)
K10M00W 2010 MW (arc=75 days, H=19.0 ~537m) from WISE (Aug. 22.17p1, 22.50p1, 22.57p1, 22.83p1 & 22.97p1), ARO Westfield (Aug. 31.08-09p2), Spacewatch 1.8m (Sept. 1.17p3), and David Tholen's team on Mauna Kea (Sept. 1.25p3)
K10HA8Z 2010 HZ108 (arc=129 days, H=20.9 ~224m) from Spacewatch 1.8m (Sept. 2.16-17p3)
K07T18Y 2007 TY18 (arc=3 opp, H=17.8 ~933m) from Smolyan Obs. (Aug. 17.05-06p2) and LINEAR (Sept. 1.36-41p5)
K04B58W 2004 BW58 (arc=4 opp, H=18.6 ~645m) from Smolyan Obs. (Aug. 18.98p2)
K02O04S 2002 OS4 (arc=3 opp, H=18.3 ~741m) from GiaGa Obs. (Sept. 1.85p1 & 1.91p1)
K02N71E 2002 NE71 (arc=2 opp, H=19.4 ~446m) from Smolyan Obs. (Aug. 18.95-96p3), Eschenberg Obs. (Sept. 1.80-81p3), and Verona Obs. (Sept. 1.88-89p4)
K01R11Y 2001 RY11 (arc=5 opp, H=17.2 ~1.23 km) from Santa Mama Obs. (Sept. 1.79-81p4)
O8818 248818 2006 SZ217 from Santa Mama Obs. (Sept. 1.86-88p4)
O3147 243147 2007 TX18 from Smolyan Obs. (Aug. 19.05p2)
G4120 164120 2003 YK from MLS (Sept. 1.42-43p4)
G1998 161998 1988 PA from LINEAR (Sept. 1.19-23p5)
F2558 152558 1990 SA from Castelmartini Obs. (Aug. 31.09-10p3) and Vicksburg Obs. (Sept. 1.30p3)
E3381 143381 2003 BC21 from Castelmartini Obs. (Aug. 31.04-05p3)
85818 85818 1998 XM4 from Santa Mama Obs. (Sept. 1.81-84p5)
66008 66008 1998 QH2 from Castelmartini Obs. (Aug. 31.13-14p3)
53789 53789 2000 ED104 from Wishing Star Obs. (Sept. 2.10-15p3)
23187 23187 2000 PN9 from Castelmartini Obs. (Aug. 31.01-02p3)
19764 19764 2000 NF5 from Castelmartini Obs. (Aug. 31.13p3)
09202 9202 1993 PB from Castelmartini Obs. (Aug. 30.96-97p3)
07336 7336 Saunders (1989 RS1) from Castelmartini Obs. (Aug. 31.04p3)
06239 6239 Minos (1989 QF) from Castelmartini Obs. (Aug. 31.11p3) and LINEAR (Sept. 1.37-41p5)
05786 5786 Talos (1991 RC) from Castelmartini Obs. (Aug. 30.97p3) and Herrenberg Obs. (Sept. 1.79-80p4)
05143 5143 Heracles (1991 VL) from Castelmartini Obs. (Aug. 31.10p3)
04660 4660 Nereus (1982 DB) from LINEAR (Sept. 1.36-41p5)
04257 4257 Ubasti (1987 QA) from Castelmartini Obs. (Aug. 30.95p3)
03753 3753 Cruithne (1986 TO) from WISE (Aug. 22.00p1, 23.07p1, 23.40p1, 23.46p2, 23.53p1, 23.66p1, 23.93p1, 23.99p1 & 24.52p1)
01865 1865 Cerberus (1971 UA) from Herrenberg Obs. (Sept. 1.84-85p5) and GiaGa Obs. (Sept. 1.89p1 & 1.93p1)

Observers on 2 September '10

A total of 63 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 7 in MPEC 2010-R11 -- C/2010 B1, C/2009 Y1, C/2009 UG89, C/2006 S3, 215P, 103P, 10P
`H21`	Astronomical Research Obs. Westfield in Illinois, 5 in MPEC 2010-R05 -- 2010 PS66, 2010 PS65, 2010 PP2, 2010 PM10, 2010 MW
`J51`	Atlante Obs. in the Canary Islands, 3 in MPEC 2010-R11 -- C/2006 S3, 103P, 10P
`I99`	Blanquita Obs. in Spain, 2 in MPEC 2010-R11 -- C/2008 FK75, 103P
`J05`	Bootes Obs. in Spain, 2 in MPEC 2010-R11 -- C/2006 Q1, 103P
`B96`	Brixiis Obs. in Belgium, 2 in MPEC 2010-R11 -- C/2006 S3, 103P
`B20`	Carmelita Obs. in Spain, 2 in MPEC 2010-R11 -- C/2008 FK75, C/2007 Q3-A
`B66`	Casasco Obs. in Italy, 2 in MPEC 2010-R11 -- C/2010 G2, 103P
`160`	Castelmartini Obs. in Italy, 18 in MPECs 2010-R05 & 2010-R11 -- C/2010 J2, C/2010 G2, C/2009 UG89, C/2008 FK75, C/2006 S3, 66008, 23187, 19764, 152558, 143381, 9202, 7336, 6239, 5786, 5143, 4257, 103P, 10P
`470`	Ceccano Obs. in Italy, 1 in MPEC 2010-R11 -- 103P
`G58`	Chabot Obs. in northern California, 1 in MPEC 2010-R06 -- 2010 RB
`A77`	Chante-Perdrix Obs. in France, 1 in MPEC 2010-R11 -- 65P
`J01`	Cielo Profundo Obs. in Spain, 3 in MPEC 2010-R11 -- C/2006 S3, 236P, 10P
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2010-R11 -- 103P
`B50`	Corner Obs. in Germany, 1 in MPEC 2010-R11 -- C/2008 FK75
`J04`	ESA Optical Ground Station (ESA OGS) in the Canary Islands, 3 in MPECs 2010-R05 & 2010-R10 -- 2010 RF, 2010 RA, 2010 PU66
`151`	Eschenberg Obs. in Switzerland, 3 in MPECs 2010-R05 & 2010-R10 -- 2010 RF, 2010 MF1, 2002 NE71
`F65`	Faulkes Telescope North in Hawaii, 1 in MPEC 2010-R11 -- 49P
`762`	Four Winds Obs. in Michigan, 2 in MPEC 2010-R11 -- C/2006 S3, 103P
`203`	GiaGa Obs. in Italy, 4 in MPECs 2010-R05 & 2010-R11 -- C/2008 FK75, C/2006 S3, 2002 OS4, 1865
`B83`	Gieres Obs. in France, 1 in MPEC 2010-R11 -- 103P
`J95`	Great Shefford Obs. in England, 3 in MPECs 2010-R05, 2010-R09 & 2010-R10 -- 2010 RF, 2010 RE, 2010 QG2
`240`	Herrenberg Obs. in Germany, 2 in MPEC 2010-R05 -- 5786, 1865
`750`	Hobbs Obs. in Wisconsin, 2 in MPEC 2010-R11 -- C/2008 FK75, C/2007 Q3-A
`H15`	ISON-NM Obs. in New Mexico, 1 in MPEC 2010-R11 -- C/2010 B1
`A21`	Irmtraut Obs. in Germany, 1 in MPEC 2010-R11 -- 103P
`987`	Isle of Man Obs. on the Isle of Man, 1 in MPEC 2010-R11 -- C/2007 Q3-A
`J28`	Jaen Obs. in Spain, 3 in MPEC 2010-R11 -- C/2008 FK75, C/2007 Q3-A, 103P
`585`	Kiev Comet Station in the Ukraine, 2 in MPEC 2010-R11 -- C/2008 FK75, 103P
`C04`	Kramatorsk Obs. in the Ukraine, 1 in MPEC 2010-R11 -- 103P
`C06`	Krasnoyarsk Obs. in Russia, 3 in MPEC 2010-R11 -- C/2006 S3, 103P, 10P
`D95`	Kurihara Obs. in Japan, 4 in MPEC 2010-R11 -- C/2009 UG89, C/2007 Q3-A, C/2006 S3, 103P
`704`	LINEAR in New Mexico, 9 in MPECs 2010-R05, 2010-R06, 2010-R07 & 2010-R11 -- 2010 RC, 2010 RB, 2010 RA, 2010 PM10, C/2007 VO53, 2007 TY18, 161998, 6239, 4660
`J38`	La Vara Obs. in Spain, 9 in MPEC 2010-R11 -- C/2010 J2, C/2010 G2, C/2009 UG89, C/2008 FK75, C/2007 VO53, C/2007 Q3-A, C/2006 S3, C/2006 Q1, 103P
`B33`	Libbiano Obs. in Italy, 2 in MPECs 2010-R05 & 2010-R10 -- 2010 RF, 2010 RA
`844`	Los Molinos Obs. in Uruguay, 1 in MPEC 2010-R11 -- 65P
`B82`	Maidbronn Obs. in Germany, 7 in MPEC 2010-R11 -- C/2010 G2, C/2009 Y1, C/2009 UG89, C/2008 FK75, C/2007 Q3-A, 103P, 10P
`C10`	Maisoncelles Obs. in France, 2 in MPEC 2010-R11 -- C/2006 S3, 65P
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-R05 -- 2010 MW
`118`	Modra Obs. in Slovakia, 2 in MPEC 2010-R11 -- C/2010 J2, C/2009 UG89
`213`	Montcabre Obs. in Spain, 3 in MPEC 2010-R11 -- C/2010 G2, 103P, 81P
`945`	Monte Deva Obs. in Spain, 7 in MPEC 2010-R11 -- C/2009 K5, C/2008 FK75, C/2007 Q3-A, C/2006 S3, 103P, 65P, 10P
`900`	Moriyama Obs. in Japan, 1 in MPEC 2010-R11 -- 215P
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2010-R05, 2010-R06, 2010-R07, 2010-R08, 2010-R09 & 2010-R10 -- 2010 RF, 2010 RE, 2010 RD, 2010 RC, 2010 RB, 164120
`J47`	Nazaret Obs. in Spain, 3 in MPEC 2010-R11 -- C/2007 Q3-A, 103P, 10P
`583`	Odessa-Mayaki Obs. in the Ukraine, 5 in MPEC 2010-R11 -- C/2008 FK75, C/2007 Q3-A, C/2006 S3, 103P, 10P
`D92`	Osaki Obs. in Japan, 1 in MPEC 2010-R11 -- C/2010 G2
`H06`	RAS Obs. Mayhill in New Mexico, 3 in MPEC 2010-R11 -- C/2010 G2, C/2010 B1, 81P
`473`	Remanzacco Obs. in Italy, 2 in MPECs 2010-R10 & 2010-R11 -- 2010 RF, C/2008 FK75
`B38`	Santa Mama Obs. in Italy, 4 in MPEC 2010-R05 -- 2010 MF1, 2001 RY11, 85818, 248818
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 2 in MPEC 2010-R11 -- C/2009 Y1, C/2007 VO53
`G68`	Sierra Stars Obs. in northern California, 1 in MPEC 2010-R11 -- 103P
`071`	Smolyan Obs. in Bulgaria, 12 in MPECs 2010-R05 & 2010-R11 -- 2010 PY22, 2010 PM9, 2010 PM10, 2010 NW117, 2010 CB55, C/2009 K5, 2007 TY18, C/2007 Q3-A, C/2006 S3, 2004 BW58, 2002 NE71, 243147
`587`	Sormano Obs. in Italy, 1 in MPEC 2010-R10 -- 2010 RF
`291`	Spacewatch 1.8m telescope in Arizona, 10 in MPECs 2010-R05 & 2010-R10 -- 2010 RF, 2010 PU66, 2010 PS65, 2010 PQ2, 2010 PD57, 2010 OE22, 2010 NZ1, 2010 MW, 2010 KH, 2010 HZ108
`A71`	Stixendorf Obs. in Austria, 1 in MPEC 2010-R11 -- 103P
`629`	Szeged Obs. in Hungary, 4 in MPEC 2010-R11 -- C/2009 K5, C/2008 FK75, C/2007 Q3-A, C/2006 S3
`B51`	Vallauris Obs. in France, 1 in MPEC 2010-R11 -- C/2006 S3
`A48`	Verona Obs. in Italy, 2 in MPEC 2010-R05 -- 2010 MF1, 2002 NE71
`H47`	Vicksburg Obs. in Mississippi, 4 in MPECs 2010-R05 & 2010-R11 -- 152558, 236P, 103P, 10P
`C51`	WISE in Earth polar orbit, 2 in MPEC 2010-R05 -- 2010 MW, 3753
`I15`	Wishing Star Obs. in Rhode Island, 1 in MPEC 2010-R05 -- 53789
`367`	Yatsuka Obs. in Japan, 2 in MPEC 2010-R11 -- C/2009 K5, 10P

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

Impact Risk Monitoring on 2 September '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 QG2	JPL Sentry	1508	2051-2064	10	3.6e-05	-4.00	-4.26	0	JPL: "Analysis based on 16 observations spanning 1.6581 days (2010-Aug-31.37082 to 2010-Sep-02.028927)." Diameter approximately 0.049 km. from mean, weighted H=24.2.
2010 QG2	NEODyS	1508	2051-2070	19	3.51e-05	-4.00	-4.29	0	NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2010/08/31.372 to 2010/09/02.030."

2010 PS65	JPL Sentry	1508	2102	1	6.0e-06	-5.39	-5.39	0	JPL: "Analysis based on 44 observations spanning 19.008 days (2010-Aug-13.29423 to 2010-Sep-01.302297)." Diameter approximately 0.040 km. from mean, weighted H=24.6.

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 2 September '10

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

1917

Grabbed MPEC 2010-R11 - Observations of Comets - see above

1508

Noted that JPL Sentry has updated its 2010 PS65 risk assessment - see above
Noted that JPL Sentry has updated its 2010 QG2 risk assessment - see above
Noted that NEODyS has posted 2010 QG2 as an impact risk - see above
Grabbed MPEC 2010-R05 - Daily Orbit Update - see above
Grabbed MPEC 2010-R06 - 2010 RB - see above
Grabbed MPEC 2010-R07 - 2010 RC - see above
Grabbed MPEC 2010-R08 - 2010 RD - see above
Grabbed MPEC 2010-R09 - 2010 RE - see above
Grabbed MPEC 2010-R10 - 2010 RF - see above

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