2009-09-12 Tracking News

Contents on 12 September '09

IAU Minor Planet Center
- NEOCP Activity -- five listings: 5 updated
- New MPECs -- nine MPECs
Observers -- 59 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 - new 13-14 Aug. 2009
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 12 September '09

The MPC's NEO Confirmation Page has 5 listings: 5 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of seven 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 12 September '09

Minor Planet Electronic Circulars

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

MPEC 2009-R41 time-stamped "06:07 UT" - Daily Orbit Update - see below
MPEC 2009-R42 time-stamped "12:38 UT" - 2009 RD1 - see below
MPEC 2009-R43 time-stamped "14:39 UT" - Comet C/2009 O4 (Hill) - see below
MPEC 2009-R44 time-stamped "14:44 UT" - Comet C/2009 P1 (Garradd) - see below
MPEC 2009-R45 time-stamped "14:47 UT" - Comet P/2009 Q1 (Hill) - see below
MPEC 2009-R46 time-stamped "14:52 UT" - Comet P/2009 Q4 (Boattini) - see below
MPEC 2009-R47 time-stamped "14:56 UT" - Comet P/2009 Q5 (McNaught) - see below
MPEC 2009-R48 time-stamped "15:04 UT" - Comet C/2009 R1 (McNaught) - see below
MPEC 2009-R49 time-stamped "15:20 UT" - Observations of Comets

MPEC 2009-R49 - "15:20 UT" - Observations of Comets

PK09L020 P/2009 L2 (Yang-Gao) from La Dehesilla Obs. (Sept. 5.91p1), Brixiis Obs. (Sept. 10.82-83p2), Nazaret Obs. (Sept. 10.91p3), and Castelmartini Obs. (Sept. 11.88p1)
CK09K050 C/2009 K5 (McNaught) from RAS Obs. Moorook (Sept. 4.45p3), Beta Orionis Obs. (Sept. 5.98p2 & 6.98p1), and Tanti Obs. (Sept. 11.03-06p3)
CK09K020 C/2009 K2 (Catalina) from La Dehesilla Obs. (Sept. 5.88p1), Modra Obs. (Sept. 7.78-79p6), Stixendorf Obs. (Sept. 8.82-83p2), Castelmartini Obs. (Sept. 9.81-82p3), and Alginet Obs. (Sept. 9.81-89p5)
PK09K010 P/2009 K1 (Gibbs) from Tzec Maun Obs. Pingelly (Aug. 29.47-48p2) and RAS Moorook (Sept. 5.41p2 & 7.41-42p3)
CK08T020 C/2008 T2 (Cardinal) from RAS Moorook (Aug. 18.42p2) and Gisborne Obs. (Sept. 9.32-37p5)
CK08S030 C/2008 S3 (Boattini) from Sandlot Obs. (Aug. 31.44-45p2) and Schiaparelli Obs. (Sept. 6.04p1 & 6.14p1)
CK08P010 C/2008 P1 (Garradd) from Ageo Obs. (Sept. 4.69-70p2), Moriyama Obs. (Sept. 6.62-63p2), Santa Maria de Montmagastrell Obs. (Sept. 8.13p3), Modra Obs. (Sept. 9.12-13p6), Tzec Maun Obs. Mayhill (Sept. 9.45p2), Stixendorf Obs. (Sept. 9.85-87p3), Nazaret Obs. (Sept. 11.03-04p3), Atlante Obs. (Sept. 11.03-05p3), Monte Deva Obs. (Sept. 11.05-07p5), Altamira Obs. (Sept. 11.17-19p3), and Montcabre Obs. (Sept. 12.02-03p3)
CK08N010 C/2008 N1 (Holmes) from La Dehesilla Obs. (Sept. 4.93p1 & 7.88p1), Stixendorf Obs. (Sept. 6.85p2 & 8.80-81p3), Malaga Obs. (Sept. 7.89-95p3), and Moriyama Obs. (Sept. 9.52-53p2)
CK07V53O C/2007 VO53 (Spacewatch) from LINEAR (Sept. 2.39-43p3), Ageo Obs. (Sept. 4.76-77p2), and Modra Obs. (Sept. 6.06-07p5)
CK07U010 C/2007 U1 (LINEAR) from Modra Obs. (Sept. 6.77-79p4), Moriyama Obs. (Sept. 9.61p2), and the Catalina Sky Survey (CSS) (Sept. 11.28-29p4)
CK06W030 C/2006 W3 (Christensen) from Tzec Maun Obs. Pingelly (July 23.73-74p3 & Aug. 1.59p3), Ageo Obs. (Aug. 23.50-51p3), Kurihara Obs. (Aug. 24.47p3, Sept. 6.42-43p6, 8.53p4 & 11.49p6), Remanzacco Obs. (Aug. 27.82p1), Washington D.C. Obs. (Sept. 1.16-20p4), Nazaret Obs. (Sept. 4.86-91p3, 8.85p1 & 10.87-88p3), Altamira Obs. (Sept. 5.02-04p3 & 11.03-04p3), Masquefa Obs. (Sept. 5.82-83p3 & 10.87-91p3), Stammersdorf Obs. (Sept. 5.83-84p3), Montcabre Obs. (Sept. 5.86p3 & 10.85-86p3), Monte Deva Obs. (Sept. 5.89-90p3, 5.98p2, 6.93-94p5, 7.94-96p5 & 10.95-96p5), El Condor Obs. (Sept. 6.15-18p3), Moriyama Obs. (Sept. 6.55p2), Stixendorf Obs. (Sept. 6.90-91p5 & 8.91p3), Castelmartini Obs. (Sept. 7.84p3 & 11.91p3), Malaga Obs. (Sept. 7.97-98p3), Hobbs Obs. (Sept. 8.06-10p3 & 11.06-10p3), Vicksburg Obs. (Sept. 8.16-17p3), Borken Obs. (Sept. 8.83-84p5), Atlante Obs. (Sept. 9.84-86p3 & 10.92-93p3), Sant Cugat del Valles Obs. (Sept. 9.90-94p3), Alginet Obs. (Sept. 9.90p4), Beta Orionis Obs. (Sept. 10.06p3), Kiev Comet Station (Sept. 10.76-79p14), the SZTE Asteroid Program (SZTE) (Sept. 10.79-80p3), Brixiis Obs. (Sept. 10.88-89p3), Four Winds Obs. (Sept. 11.14-16p3), and Gualba Obs. (Sept. 11.82p2)
CK06S030 C/2006 S3 (LONEOS) from Nagano Obs. (Aug. 23.55-56p2), Paus Obs. (Sept. 7.88-89p2), Moriyama Obs. (Sept. 9.59-60p2), and Atlante Obs. (Sept. 9.95-96p3 & 10.99-01p3)
CK06Q010 C/2006 Q1 (McNaught) from La Dehesilla Obs. (Sept. 5.84-85p3), Stixendorf Obs. (Sept. 6.83-84p3), Monte Deva Obs. (Sept. 6.88-91p5 & 7.87-88p3), Moriyama Obs. (Sept. 9.53-54p2), Maidbronn Obs. (Sept. 9.79-80p4), SZTE (Sept. 10.81p1), and Gualba Obs. (Sept. 11.80p2)
0222P 222P/LINEAR from Ageo Obs. (Sept. 4.80-81p3), RAS Obs. Mayhill (Sept. 6.49p2), and La Sagra Obs. (Sept. 11.16-19p3)
0219P 219P/LINEAR from Moriyama Obs. (Sept. 1.47-48p2) and Schiaparelli Obs. (Sept. 5.84p1)
0217P 217P/LINEAR from Tzec Maun Obs. Pingelly (July 23.75p3 & Sept. 7.79-81p2), Altamira Obs. (Sept. 5.07-09p3 & 11.20-22p3), Skylive Obs. (Sept. 6.06p1 & 6.11p1), Monte Deva Obs. (Sept. 6.06-07p5, 7.04-08p5, 8.07-08p5 & 11.12-13p5), Santa Maria de M. Obs. (Sept. 8.14-15p3), Kiev Comet Station (Sept. 9.08-10p9), Tzec Maun Obs. Mayhill (Sept. 9.37-38p3), and RAS Mayhill (Sept. 9.38-41p3)
0162P 162P/Siding Spring from Kambah Obs. (July 19.46-47p2) and the Siding Spring Survey (SSS) (Sept. 9.38-39p3)
0157P 157P/Tritton from Ageo Obs. (Sept. 9.66-67p2), Maidbronn Obs. (Sept. 10.09p3), Nazaret Obs. (Sept. 11.05-06p4), and Montcabre Obs. (Sept. 11.95-96p3)
0127P 127P/Holt-Olmstead from Moriyama Obs. (Aug. 30.68-69p2) and Ageo Obs. (Aug. 31.71p2)
0118P 118P/Shoemaker-Levy 4 from CSS (Aug. 30.46-47p3), Schiaparelli Obs. (Sept. 6.06p1 & 6.12p1), and Tzec Maun Obs. Mayhill (Sept. 9.40-41p3)
0088P 88P/Howell from Tzec Maun Obs. Pingelly (Aug. 1.53-56p3), Ageo Obs. (Sept. 5.41-42p2), and Kurihara Obs. (Sept. 11.43p4)
0043P 43P/Wolf-Harrington from CSS (Aug. 28.14-15p4) and Moriyama Obs. (Sept. 6.60-61p2)
0030P 30P/Reinmuth 1 from Schiaparelli Obs. (Aug. 31.08-12p2 & Sept. 6.08p1)
0022P 22P/Kopff from Tzec Maun Obs. Pingelly (July 23.66-67p3 & Aug. 1.58p3), Nagano Obs. (Aug. 23.57-58p4), Kurihara Obs. (Aug. 23.60p3, 24.55p4 & Sept. 8.52p4), Balzaretto Obs. (Sept. 5.87-88p3), Linceo Obs. (Sept. 5.94-96p3), Monte Deva Obs. (Sept. 5.00p5, 6.95-97p5, 8.01-04p5 & 10.98-01p5), Beta Orionis Obs. (Sept. 6.99p3, 8.04p3 & 10.03-04p3), Hobbs Obs. (Sept. 8.08-09p2 & 11.07-10p3), Vicksburg Obs. (Sept. 8.31-33p3), Gisborne Obs. (Sept. 9.39-45p3), Moriyama Obs. (Sept. 9.62-63p2), Stixendorf Obs. (Sept. 9.83-84p5), Atlante Obs. (Sept. 9.98-99p3), Montana Blanca Obs. (Sept. 10.95-96p3), Nazaret Obs. (Sept. 10.96-98p3), and Masquefa Obs. (Sept. 11.97-98p3)

MPEC 2009-R48 - "15:04 UT" - Comet C/2009 R1 (McNaught)

CK09R010 C/2009 R1 from RAS Moorook (Sept. 10.61-62p2), SSS (Sept. 10.64p2), Montcabre Obs. (Sept. 11.91-92p2), and El Condor Obs. (Sept. 12.00p1 & 12.06p1)

MPEC 2009-R47 - "14:56 UT" - Comet P/2009 Q5 (McNaught)

PK09Q050 P/2009 Q5 (McNaught) from SSS (Sept. 8.53p1 & 9.68p2), Kiev Comet Station (Sept. 9.02p2), Tzec Maun Obs. Mayhill (Sept. 9.44-45p3), Ageo Obs. (Sept. 9.70-71p3), Nazaret Obs. (Sept. 11.08-09p3), Altamira Obs. (Sept. 11.15-17p3), and Montcabre Obs. (Sept. 12.00-01p3)

MPEC 2009-R46 - "14:52 UT" - Comet P/2009 Q4 (Boattini)

PK09Q040 P/C/2009 Q4 (Boattini) from Kiev Comet Station (Sept. 9.05-06p6) and Ageo Obs. (Sept. 9.76-77p3)

MPEC 2009-R45 - "14:47 UT" - Comet P/2009 Q1 (Hill)

PK09Q010 P/2009 Q1 (Hill) from CSS (Sept. 10.31-33p4), Kiev Comet Station (Sept. 10.85-86p2), Castelmartini Obs. (Sept. 11.95p1), and Montcabre Obs. (Sept. 12.07p2)

MPEC 2009-R44 - "14:44 UT" - Comet C/2009 P1 (Garradd)

CK09P010 C/2009 P1 (Garradd) from SSS (Sept. 9.67p2), RAS Moorook (Sept. 10.63p2), and Tanti Obs. (Sept. 11.30-31p3)

MPEC 2009-R43 - "14:39 UT" - Comet C/2009 O4 (Hill)

CK09O040 C/2009 O4 (Hill) from Remanzacco Obs. (Aug. 19.01p2), Piszkesteto Sta. (Aug. 20.94-95p3 & 24.92-93p3), Altamira Obs. (Sept. 5.06-07p3 & 11.14p3), Ageo Obs. (Sept. 5.60p2 & 7.63-64p3), Moriyama Obs. (Sept. 6.64p2), Kiev Comet Station (Sept. 8.98-99p10), Tzec Maun Obs. Mayhill (Sept. 9.42-43p3 & 12.40-41p3), Monte Deva Obs. (Sept. 11.02-04p5), Nazaret Obs. (Sept. 11.06-07p4), Castelmartini Obs. (Sept. 11.97-98p3), and El Condor Obs. (Sept. 12.08p1 & 12.19p1)

MPEC 2009-R42 - "12:38 UT" - 2009 RD1

K09R01D 2009 RD1 was discovered at 1501 UT on 11 Sept. by SSS, which observed it at Sept. 11.63-65p3 and 12.39p1. The discovery was confirmed by El Condor Obs. (Sept. 12.10-12p2), Doc Greiner Research Obs. (DGRO) (Sept. 12.11-12p6), and Sabino Canyon Obs. (Sept. 12.29-30p3).

<< DOU on 12 Sept. '09 >> MPEC 2009-R41 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K09R00N 2009 RN (Q=5.245 AU, arc=0 days, H=19.8 ~371m) from Tzec Maun Obs. Mayhill (Sept. 11.43-44p2)
Observations of small asteroids (H>22.0)
K09R00H 2009 RH (arc=1 day, H=23.7 ~62m) from Astronomical Research Obs. (ARO) (Sept. 11.09-10p3)
K09Q35A 2009 QA35 (Q=4.129 AU, arc=14 days, H=22.4 ~112m) from ARO (Sept. 11.18-19p3)
K09Q34E 2009 QE34 (arc=16 days, H=23.6 ~65m) from Rio Cuarto Obs. (Sept. 11.27p3)
K09Q23C 2009 QC23 (arc=20 days, H=24.8 ~37m) from ARO (Sept. 11.20-23p5)
K09Q00T 2009 QT (arc=25 days, H=23.3 ~74m) from ARO (Sept. 11.12-14p4)
K09P01Q 2009 PQ1 (arc=28 days, H=22.5 ~107m) from ARO (Sept. 11.12-13p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K09Q36C 2009 QC36 (arc=12 days, H=22.0 ~135m) from ARO (Sept. 11.15p3) and DGRO (Sept. 11.18p3)
Observations of other objects
K09Q34G 2009 QG34 (Q=4.633 AU, arc=14 days, H=19.6 ~407m) from ARO (Sept. 10.31p3)
K09Q31F 2009 QF31 (i=42.5°, arc=16 days, H=18.3 ~741m) from ARO (Sept. 11.08-09p3) and CSS (Sept. 11.20-22p4)
K09Q09J 2009 QJ9 (Q=4.399 AU, arc=22 days, H=19.4 ~446m) from SSS (Sept. 11.81p2)
K09Q00O 2009 QO (arc=80 days, H=20.0 ~339m) from CSS (Sept. 11.24-27p4)
K09N00H 2009 NH (arc=60 days, H=18.8 ~589m) from Kiev Comet Station (Sept. 8.00-01p11)
K09N00E 2009 NE (q=0.361 AU, Q=4.987 AU, arc=4 opp, H=16.0 ~2.14 km) from Lohrmann Obs. (Aug. 19.82-86p4, 20.82p2, Sept. 8.81p2 & 9.80-83p4)
K09M09C 2009 MC9 (arc=73 days, H=18.1 ~812m) from Lohrmann Obs. (Sept. 8.86-90p4 & 9.84-88p4), CSS (Sept. 11.20-22p4), and SSS (Sept. 11.37-38p2)
K09M01L 2009 ML1 (arc=79 days, H=19.5 ~426m) from ARO (Sept. 10.27-29p4)
K09K03C 2009 KC3 (Q=5.454 AU, arc=130 days, H=18.2 ~776m) from Great Shefford Obs. (Sept. 11.04p1 & 11.11-15p2) and DGRO (Sept. 11.19-20p10)
K06V02V 2006 VV2 (arc=2 opp, H=16.8 ~1.48 km) from ARO (Sept. 11.24-26p3 at V=21.7-22.1)
K05T45G 2005 TG45 (IEO, Q=0.935 AU, arc=3 opp, H=17.5 ~1.07 km) from Lohrmann Obs. (Sept. 8.81p1 & 9.81-83p4)
K05T15E 2005 TE15 (arc=3 opp, H=19.9 ~355m) from SSS (Sept. 11.67-70p3)
K02T30N 2002 TN30 (arc=4 opp, H=16.8 ~1.48 km) from Rio Cuarto Obs. (Sept. 11.20-21p3)
K02N01P 2002 NP1 (arc=3 opp, H=17.7 ~977m) from Lohrmann Obs. (Aug. 19.84-88p4, Sept. 8.85-89p4 & 9.84-88p4)
K00R60H 2000 RH60 (q=0.371 AU, arc=4 opp, H=20.0 ~339m) from La Sagra Obs. (Sept. 10.91-94p3)
K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from El Condor Obs. (Sept. 11.95-96p3)
L7390 217390 2005 CW25 from Lohrmann Obs. (Aug. 19.81-85p3 & 20.81p1)
G3899 163899 2003 SD220 from CSS (Sept. 11.46-48p4)
G3697 163697 2003 EF54 from Lohrmann Obs. (Sept. 8.86-90p4 & 9.85-88p4) and CSS (Sept. 11.18-19p3)
G2181 162181 1999 LF6 from Lohrmann Obs. (Sept. 8.82-85p3 & 9.82-84p3)
F2664 152664 1998 FW4 from DGRO (Sept. 11.19p5)
30825 30825 1990 TG1 from CSS (Sept. 11.30-32p4)
17274 17274 2000 LC16 from Lohrmann Obs. (Aug. 19.84-88p4, 20.82p2, Sept. 8.86-90p4 & 9.85-88p4), Velikie Luki Obs. (Sept. 10.75-76p3), and CSS (Sept. 11.18-20p4)
16834 16834 1997 WU22 from Le Couvent de Lentin Obs. (Sept. 8.81-83p3) and Lohrmann Obs. (Sept. 8.87p2, 8.92p2 & 9.86-89p4)
12711 12711 Tukmit (1991 BB) from Lohrmann Obs. (Sept. 8.80-83p4 & 9.80-83p4)
11500 11500 Tomaiyowit (1989 UR) from Lohrmann Obs. (Aug. 19.86p1 & 20.89p2)
08035 8035 1992 TB from CSS (Sept. 11.28-29p4)
04015 4015 Wilson-Harrington (1979 VA) from SSS (Sept. 11.45-46p4)
01943 1943 Anteros (1973 EC) from Le Couvent de Lentin Obs. (Sept. 8.80-83p3), Lohrmann Obs. (Sept. 8.87-90p4 & 9.85-89p4), Sant Cugat del Valles Obs. (Sept. 9.92-94p4), and CSS (Sept. 11.27-29p4)
00433 433 Eros (1898 DQ) from Le Couvent de Lentin Obs. (Sept. 8.80-83p3), Lohrmann Obs. (Sept. 8.86-90p4 & 9.85-89p4), and CSS (Sept. 11.18-20p4)

Observers on 12 September '09

A total of 59 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 10 in MPECs 2009-R43, 2009-R46, 2009-R47 & 2009-R49 -- P/2009 Q5, P/2009 Q4, C/2009 O4, C/2008 P1, C/2007 VO53, C/2006 W3, 222P, 157P, 127P, 88P
`J97`	Alginet Obs. in Spain, 2 in MPEC 2009-R49 -- C/2009 K2, C/2006 W3
`J24`	Altamira Obs. in Spain, 5 in MPECs 2009-R43, 2009-R47 & 2009-R49 -- P/2009 Q5, C/2009 O4, C/2008 P1, C/2006 W3, 217P
`H55`	Astronomical Research Obs. (ARO) in Illinois, 10 in MPEC 2009-R41 -- 2009 RH, 2009 QT, 2009 QG34, 2009 QF31, 2009 QC36, 2009 QC23, 2009 QA35, 2009 PQ1, 2009 ML1, 2006 VV2
`J51`	Atlante Obs. in the Canary Islands, 4 in MPEC 2009-R49 -- C/2008 P1, C/2006 W3, C/2006 S3, 22P
`A81`	Balzaretto Obs. in Italy, 1 in MPEC 2009-R49 -- 22P
`I32`	Beta Orionis Obs. in Argentina, 3 in MPEC 2009-R49 -- C/2009 K5, C/2006 W3, 22P
`B59`	Borken Obs. in Germany, 1 in MPEC 2009-R49 -- C/2006 W3
`B96`	Brixiis Obs. in Belgium, 2 in MPEC 2009-R49 -- P/2009 L2, C/2006 W3
`160`	Castelmartini Obs. in Italy, 5 in MPECs 2009-R43, 2009-R45 & 2009-R49 -- P/2009 Q1, C/2009 O4, P/2009 L2, C/2009 K2, C/2006 W3
`703`	Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2009-R41, 2009-R45 & 2009-R49 -- 2009 QO, 2009 QF31, P/2009 Q1, 2009 MC9, C/2007 U1, 30825, 17274, 163899, 163697, 8035, 1943, 433, 118P, 43P
`H26`	Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPECs 2009-R41 & 2009-R42 -- 2009 RD1, 2009 QC36, 2009 KC3, 152664
`I21`	El Condor Obs. in Argentina, 5 in MPECs 2009-R41, 2009-R42, 2009-R43, 2009-R48 & 2009-R49 -- 2009 RD1, C/2009 R1, C/2009 O4, C/2006 W3, 2000 CO101
`762`	Four Winds Obs. in Michigan, 1 in MPEC 2009-R49 -- C/2006 W3
`E94`	Gisborne Obs. in New Zealand, 2 in MPEC 2009-R49 -- C/2008 T2, 22P
`J95`	Great Shefford Obs. in England, 1 in MPEC 2009-R41 -- 2009 KC3
`442`	Gualba Obs. in Spain, 2 in MPEC 2009-R49 -- C/2006 W3, C/2006 Q1
`750`	Hobbs Obs. in Wisconsin, 2 in MPEC 2009-R49 -- C/2006 W3, 22P
`415`	Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2009-R49 -- 162P
`585`	Kiev Comet Station in the Ukraine, 7 in MPECs 2009-R41, 2009-R43, 2009-R45, 2009-R46, 2009-R47 & 2009-R49 -- P/2009 Q5, P/2009 Q4, P/2009 Q1, C/2009 O4, 2009 NH, C/2006 W3, 217P
`D95`	Kurihara Obs., 3 in MPEC 2009-R49 -- C/2006 W3, 88P, 22P
`704`	LINEAR in New Mexico, 1 in MPEC 2009-R49 -- C/2007 VO53
`212`	La Dehesilla Obs. in Spain, 4 in MPEC 2009-R49 -- P/2009 L2, C/2009 K2, C/2008 N1, C/2006 Q1
`J75`	La Sagra Obs. in Spain, 2 in MPECs 2009-R41 & 2009-R49 -- 2000 RH60, 222P
`A65`	Le Couvent de Lentin Obs. in France, 3 in MPEC 2009-R41 -- 16834, 1943, 433
`J59`	Linceo Obs. in Spain, 1 in MPEC 2009-R49 -- 22P
`C01`	Lohrmann Obs. in Germany, 13 in MPEC 2009-R41 -- 2009 NE, 2009 MC9, 2005 TG45, 2002 NP1, 217390, 17274, 16834, 163697, 162181, 12711, 11500, 1943, 433
`B82`	Maidbronn Obs. in Germany, 2 in MPEC 2009-R49 -- C/2006 Q1, 157P
`J40`	Malaga Obs. in Spain, 2 in MPEC 2009-R49 -- C/2008 N1, C/2006 W3
`232`	Masquefa Obs. in Spain, 2 in MPEC 2009-R49 -- C/2006 W3, 22P
`118`	Modra Obs. in Slovakia, 4 in MPEC 2009-R49 -- C/2009 K2, C/2008 P1, C/2007 VO53, C/2007 U1
`J46`	Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2009-R49 -- 22P
`213`	Montcabre Obs. in Spain, 6 in MPECs 2009-R45, 2009-R47, 2009-R48 & 2009-R49 -- C/2009 R1, P/2009 Q5, P/2009 Q1, C/2008 P1, C/2006 W3, 157P
`945`	Monte Deva Obs. in Spain, 6 in MPECs 2009-R43 & 2009-R49 -- C/2009 O4, C/2008 P1, C/2006 W3, C/2006 Q1, 217P, 22P
`900`	Moriyama Obs. in Japan, 11 in MPECs 2009-R43 & 2009-R49 -- C/2009 O4, C/2008 P1, C/2008 N1, C/2007 U1, C/2006 W3, C/2006 S3, C/2006 Q1, 219P, 127P, 43P, 22P
`D81`	Nagano Obs. in Japan, 2 in MPEC 2009-R49 -- C/2006 S3, 22P
`J47`	Nazaret Obs. in Spain, 7 in MPECs 2009-R43, 2009-R47 & 2009-R49 -- P/2009 Q5, C/2009 O4, P/2009 L2, C/2008 P1, C/2006 W3, 157P, 22P
`B49`	Paus Obs. in Spain, 1 in MPEC 2009-R49 -- C/2006 S3
`561`	Piszkesteto Sta. in Hungary, 1 in MPEC 2009-R43 -- C/2009 O4
`H06`	RAS Obs. Mayhill in New Mexico, 2 in MPEC 2009-R49 -- 222P, 217P
`D90`	RAS Obs. Moorook in South Australia, 5 in MPECs 2009-R44, 2009-R48 & 2009-R49 -- C/2009 R1, C/2009 P1, C/2009 K5, P/2009 K1, C/2008 T2
`473`	Remanzacco Obs. in Italy, 2 in MPECs 2009-R43 & 2009-R49 -- C/2009 O4, C/2006 W3
`I20`	Rio Cuarto Obs. in Argentina, 2 in MPEC 2009-R41 -- 2009 QE34, 2002 TN30
`461`	SZTE Asteroid Program (SZTE) in Hungary, 2 in MPEC 2009-R49 -- C/2006 W3, C/2006 Q1
`854`	Sabino Canyon Obs. in Arizona, 1 in MPEC 2009-R42 -- 2009 RD1
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2009-R49 -- C/2008 S3
`B61`	Sant Cugat del Valles Obs. in Spain, 2 in MPECs 2009-R41 & 2009-R49 -- C/2006 W3, 1943
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 2 in MPEC 2009-R49 -- C/2008 P1, 217P
`204`	Schiaparelli Obs. in Italy, 4 in MPEC 2009-R49 -- C/2008 S3, 219P, 118P, 30P
`E12`	Siding Spring Survey (SSS) in New South Wales, 9 in MPECs 2009-R41, 2009-R42, 2009-R44, 2009-R47, 2009-R48 & 2009-R49 -- 2009 RD1, C/2009 R1, 2009 QJ9, P/2009 Q5, C/2009 P1, 2009 MC9, 2005 TE15, 4015, 162P
`B40`	Skylive Obs. in Italy, 1 in MPEC 2009-R49 -- 217P
`A97`	Stammersdorf Obs. in Austria, 1 in MPEC 2009-R49 -- C/2006 W3
`A71`	Stixendorf Obs. in Austria, 6 in MPEC 2009-R49 -- C/2009 K2, C/2008 P1, C/2008 N1, C/2006 W3, C/2006 Q1, 22P
`I19`	Tanti Obs. in Argentina, 2 in MPECs 2009-R44 & 2009-R49 -- C/2009 P1, C/2009 K5
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 6 in MPECs 2009-R41, 2009-R43, 2009-R47 & 2009-R49 -- 2009 RN, P/2009 Q5, C/2009 O4, C/2008 P1, 217P, 118P
`D25`	Tzec Maun Obs. Pingelly in Western Australia, 5 in MPEC 2009-R49 -- P/2009 K1, C/2006 W3, 217P, 88P, 22P
`C00`	Velikie Luki Obs. in Russia, 1 in MPEC 2009-R41 -- 17274
`H47`	Vicksburg Obs. in Mississippi, 2 in MPEC 2009-R49 -- C/2006 W3, 22P
`I13`	Washington D.C. Obs. in Washington, D.C., 1 in MPEC 2009-R49 -- C/2006 W3

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

Impact Risk Monitoring on 12 September '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 RR	NEODyS	1455	2020-2090	53	2.56e-06	-5.82	-6.51	0	NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2009/09/11.183 to 2009/09/11.338."

2009 RN	JPL Sentry	1455	2015-2106	32	1.3e-07	-4.17	-4.59	0	JPL: "Analysis based on 25 observations spanning .43798 days (2009-Sep-11.00009 to 2009-Sep-11.43807)." Diameter approximately 0.366 km. from mean, weighted H=19.8.
2009 RN	NEODyS	1455	2015-2088	17	2.14e-08	-4.52	-4.63	0	NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2009/09/11.001 to 2009/09/11.439."

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 12 September '09

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

1544

Grabbed MPEC 2009-R47 - Comet P/2009 Q5 (McNaught) - see above
Grabbed MPEC 2009-R48 - Comet C/2009 R1 (McNaught) - see above
Grabbed MPEC 2009-R49 - Observations of Comets - see above

1455

Noted that JPL Sentry has updated its 2009 RN risk assessment - see above
Noted that NEODyS has posted 2009 RN as an impact risk - see above
Noted that NEODyS has posted 2009 RR as an impact risk - see above
Grabbed MPEC 2009-R41 - Daily Orbit Update - see above
Grabbed MPEC 2009-R42 - 2009 RD1 - see above
Grabbed MPEC 2009-R43 - Comet C/2009 O4 (Hill) - see above
Grabbed MPEC 2009-R44 - Comet C/2009 P1 (Garradd) - see above
Grabbed MPEC 2009-R45 - Comet P/2009 Q1 (Hill) - see above
Grabbed MPEC 2009-R46 - Comet P/2009 Q4 (Boattini) - see above

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