2009-09-17 Tracking News

Contents on 17 September '09

IAU Minor Planet Center
- NEOCP Activity -- 16 listings: 3 new, 13 updated
- New MPECs -- 25 MPECs
Observers -- 52 observing facilities
Impact Risk Monitoring -- four 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 17 September '09

The MPC's NEO Confirmation Page has 16 listings: 3 new, 13 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and thirteen updated listings. Of these, fifteen were "one nighters." So far The Tracking News has counted a total of 34 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 17 September '09

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been 25 MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2009-S03 time-stamped "05:28 UT" - 2009 SA - see below
MPEC 2009-S04 time-stamped "06:08 UT" - Daily Orbit Update - see below
MPEC 2009-S05 time-stamped "12:13 UT" - 2009 SB - see below
MPEC 2009-S06 time-stamped "12:16 UT" - 2009 SC - see below
MPEC 2009-S07 time-stamped "12:20 UT" - 2009 SD - see below
MPEC 2009-S08 time-stamped "12:24 UT" - 2009 SF - see below
MPEC 2009-S09 time-stamped "12:30 UT" - 2009 SG - see below
MPEC 2009-S10 time-stamped "16:28 UT" - 2009 SH - see below
MPEC 2009-S11 time-stamped "16:31 UT" - 2009 SJ - see below
MPEC 2009-S12 time-stamped "16:34 UT" - 2009 SK - see below
MPEC 2009-S13 time-stamped "16:38 UT" - 2009 SL - see below
MPEC 2009-S14 time-stamped "18:02 UT" - Comet C/2009 F6 (Yi-SWAN) - see below
MPEC 2009-S15 time-stamped "18:46 UT" - Comet C/2009 O2 (Catalina) - see below
MPEC 2009-S16 time-stamped "18:50 UT" - Comet P/2009 O3 (Hill) - see below
MPEC 2009-S17 time-stamped "18:55 UT" - Comet C/2009 O4 (Hill) - see below
MPEC 2009-S18 time-stamped "18:59 UT" - Comet C/2009 P1 (Garradd) - see below
MPEC 2009-S19 time-stamped "19:04 UT" - Comet P/2009 Q1 (Hill) - see below
MPEC 2009-S20 time-stamped "19:08 UT" - Comet P/2009 Q4 (Boattini) - see below
MPEC 2009-S21 time-stamped "19:13 UT" - Comet P/2009 Q5 (McNaught) - see below
MPEC 2009-S22 time-stamped "19:18 UT" - Comet C/2009 R1 (McNaught) - see below
MPEC 2009-S23 time-stamped "19:31 UT" - Observations of Comets - see below
MPEC 2009-S24 time-stamped "20:35 UT" - 2009 SM - see below
MPEC 2009-S25 time-stamped "20:44 UT" - 2009 SN - see below
MPEC 2009-S26 time-stamped "23:26 UT" - 2009 SP - see below
MPEC 2009-S27 time-stamped "23:35 UT" - 2009 SQ

MPEC 2009-S27 - "23:35 UT" - 2009 SQ

K09S00Q 2009 SQ was discovered at 0544 UT on 17 Sept. by the Catalina Sky Survey (CSS), which observed it at Sept. 17.24-31p6. The discovery was confirmed by Richard Miles via Faulkes Telescope North (Sept. 17.47p2), Great Shefford Obs. (Sept. 17.87-88p3), and Naef Obs. (Sept. 17.88-89p4).

MPEC 2009-S26 - "23:26 UT" - 2009 SP

K09S00P 2009 SP was discovered at 0531 UT on 17 Sept. by the Mt. Lemmon Survey (MLS), which observed it at Sept. 17.23-25p4 and 17.33-35p4. The discovery was confirmed by Miles/Faulkes North (Sept. 17.50p3) and Great Shefford Obs. (Sept. 17.89-90p3).

MPEC 2009-S25 - "20:44 UT" - 2009 SN

K09S00N 2009 SN was discovered at 0329 UT on 17 Sept. by CSS, which observed it at Sept. 17.15-19p6. The discovery was confirmed by MLS (Sept. 17.22-23p4) and Great Shefford Obs. (Sept. 17.84-85p3).

MPEC 2009-S24 - "20:35 UT" - 2009 SM

K09S00M 2009 SM was discovered at 0953 UT on 16 Sept. by CSS, which observed it at Sept. 16.41-48p7. The discovery was confirmed by MLS (Sept. 17.46-48p4) and Miles/Faulkes North (Sept. 17.58p3).

MPEC 2009-S23 - "19:31 UT" - Observations of Comets

PK09R020 P/2009 R2 (Pigott-LINEAR-Kowalski) from Malina River Obs. (Sept. 13.13p2), Altamira Obs. (Sept. 14.23p2), and Tzec Maun Obs. Mayhill (Sept. 15.42-47p3)
CK09P020 C/2009 P2 (Boattini) from Moriyama Obs. (Sept. 10.62p2 & 13.54p2), Engelhardt Obs. Zelenchukskaya Station (Sept. 11.70-72p5 & 12.70-72p5), Castelmartini Obs. (Sept. 11.93p1), Chante-Perdrix Obs. (Sept. 13.84-85p3), Altamira Obs. (Sept. 14.04-06p3), Malaga Obs. (Sept. 15.91-95p3), and Farm Cove Obs. (Sept. 16.48-49p3)
CK08Q030 C/2008 Q3 (Garradd) from Tzec Maun Obs. Pingelly (July 23.54p2) and Ageo Obs. (Sept. 6.41-42p2)
CK08P010 C/2008 P1 (Garradd) from Alicante Obs. (Sept. 12.03-04p3), CAST Obs. (Sept. 12.84p1), Atlante Obs. (Sept. 12.00-01p3), Maidbronn Obs. (Sept. 13.07-10p2 & 13.14p1), Moriyama Obs. (Sept. 13.60-61p2), Altamira Obs. (Sept. 14.11-12p3), Vitebsk Obs. (Sept. 15.92-94p3), and Santa Maria de Montmagastrell Obs. (Sept. 16.12p3)
CK08N010 C/2008 N1 (Holmes) from Ageo Obs. (Aug. 23.59p2 & Sept. 6.45p2), CAST Obs. (Sept. 12.79p1), Nazaret Obs. (Sept. 13.83-84p3), and Yatsuka Obs. (Sept. 15.45p2)
CK08F75K C/2008 FK75 (Lemmon-Siding Spring) from Schiaparelli Obs. (Sept. 5.82-85p2), CAST Obs. (Sept. 12.79p1), and Nazaret Obs. (Sept. 12.83-84p3)
CK07V53O C/2007 VO53 (Spacewatch) from Altamira Obs. (Sept. 14.18-19p3) and the SZTE Asteroid Program (SZTE) (Sept. 16.04-05p3)
CK06W030 C/2006 W3 (Christensen) from Remanzacco Obs. (Aug. 27.82p1), Alicante Obs. (Sept. 11.88-90p3), CAST Obs. (Sept. 12.81p1), Nazaret Obs. (Sept. 12.84-85p3, 13.96p3 & 16.84-85p3), Maidbronn Obs. (Sept. 12.93-95p3), La Dehesilla Obs. (Sept. 12.94-95p6), El Condor Obs. (Sept. 13.00-03p2), AAAA Buenos Aires Obs. (Sept. 13.02-05p4), Linceo Obs. (Sept. 13.82-84p3), Atlante Obs. (Sept. 13.84-85p3), Altamira Obs. (Sept. 13.96-97p3), Hobbs Obs. (Sept. 14.05-09p3), Aravaca Obs. (Sept. 14.80-81p3), Santa Maria de M. Obs. (Sept. 14.90p3), Yatsuka Obs. (Sept. 15.53p2), and La Canada Obs. (Sept. 15.88-89p3)
CK06S030 C/2006 S3 (LONEOS) from CAST Obs. (Sept. 12.83p1), Maidbronn Obs. (Sept. 13.02-05p3), Nazaret Obs. (Sept. 13.94-95p3), Altamira Obs. (Sept. 13.98-99p3), Hobbs Obs. (Sept. 14.07-10p3), and SZTE (Sept. 15.89-91p3)
CK06Q010 C/2006 Q1 (McNaught) from Ageo Obs. (Sept. 6.46-47p2), Vitebsk Obs. (Sept. 10.77-78p3), CAST Obs. (Sept. 12.80p1), and Yatsuka Obs. (Sept. 15.46-47p2)
0221P 221P/LINEAR from Buchloe Obs. (Aug. 23.97p1) and Vitebsk Obs. (Sept. 15.89-90p3)
0217P 217P/LINEAR from Tzec Maun Obs. Mayhill (Sept. 11.42-46p3), Altamira Obs. (Sept. 14.16-17p3), and Santa Maria de M. Obs. (Sept. 16.13p3)
0203P 203P/Korlevic from Schiaparelli Obs. (Sept. 6.05p1 & 6.12p1), LINEAR (Sept. 14.44-48p4), and Vitebsk Obs. (Sept. 16.05-07p3)
0157P 157P/Tritton from CAST Obs. (Sept. 12.85p1), Yatsuka Obs. (Sept. 13.55-56p2), Altamira Obs. (Sept. 14.12-14p3), Vitebsk Obs. (Sept. 14.91p3), Santa Maria de M. Obs. (Sept. 16.10p1), Atlante Obs. (Sept. 16.96-99p3), and Nazaret Obs. (Sept. 16.99-00p3)
0127P 127P/Holt-Olmstead from CAST Obs. (Sept. 12.94p1), Moriyama Obs. (Sept. 13.62p2), LINEAR (Sept. 14.32-37p5), and Vitebsk Obs. (Sept. 15.95-96p3)
0118P 118P/Shoemaker-Levy 4 from Tzec Maun Obs. Mayhill (Sept. 11.43-45p3), LINEAR (Sept. 13.41-45p5), and Altamira Obs. (Sept. 14.20-21p3)
0081P 81P/Wild 2 from Schiaparelli Obs. (Sept. 6.14-15p2), RAS Obs. Mayhill (Sept. 6.48-49p2), Ageo Obs. (Sept. 9.78-79p2), and Altamira Obs. (Sept. 14.24-25p3)
0064P 64P/Swift-Gehrels from Ageo Obs. (Sept. 4.78-79p2) and Altamira Obs. (Sept. 14.25p3)
0047P 47P/Ashbrook-Jackson from Schiaparelli Obs. (Sept. 6.03p1 & 6.11p1), Ageo Obs. (Sept. 9.73-74p2), CAST Obs. (Sept. 12.93p1), and Vitebsk Obs. (Sept. 16.03-05p3)
0043P 43P/Wolf-Harrington from Vitebsk Obs. (Sept. 10.83-84p3), Alicante Obs. (Sept. 11.91-93p2), CAST Obs. (Sept. 12.82p1), Montcabre Obs. (Sept. 12.84-86p3), Malaga Obs. (Sept. 12.92-96p3), Maidbronn Obs. (Sept. 12.96-97p4), and Nazaret Obs. (Sept. 13.89-90p3)
0022P 22P/Kopff from Ageo Obs. (Sept. 7.61-62p2), Alicante Obs. (Sept. 11.95-96p3), CAST Obs. (Sept. 12.90p1), Mt. Tuffley Obs. (Sept. 12.93-94p3), Atlante Obs. (Sept. 12.94-95p3 & 16.92-93p3), Moriyama Obs. (Sept. 13.57-58p2), Chante-Perdrix Obs. (Sept. 13.87-90p3), and Nazaret Obs. (Sept. 13.97-98p3 & 16.91-93p3)

MPEC 2009-S22 - "19:18 UT" - Comet C/2009 R1 (McNaught)

CK09R010 C/2009 R1 (McNaught) from North Ryde Obs. (Sept. 11.46-49p2 & 12.43p1), Tzec Maun Obs. Pingelly (Sept. 11.75-76p2), Yatsuka Obs. (Sept. 13.51-52p2), and El Condor Obs. (Sept. 15.00-03p3)

MPEC 2009-S21 - "19:13 UT" - Comet P/2009 Q5 (McNaught)

PK09Q050 P/2009 Q5 (McNaught) from North Ryde Obs. (Sept. 11.61p1, 11.65p1, 12.62p1, 12.67p1, 13.50-52p2, 15.50p1 & 15.56p1), Atlante Obs. (Sept. 13.12-13p3), El Condor Obs. (Sept. 13.21-23p2), Altamira Obs. (Sept. 14.16p3), and Santa Maria de M. Obs. (Sept. 16.08p3)

MPEC 2009-S20 - "19:08 UT" - Comet P/2009 Q4 (Boattini)

PK09Q040 P/2009 Q4 (Boattini) from LINEAR (Sept. 12.42-45p4), Atlante Obs. (Sept. 13.20-21p3), Altamira Obs. (Sept. 14.21-22p3), and MLS (Sept. 17.49-51p4)

MPEC 2009-S19 - "19:04 UT" - Comet P/2009 Q1 (Hill)

PK09Q010 P/2009 Q1 (Hill) from Vitebsk Obs. (Sept. 10.91p1), Malina River Obs. (Sept. 12.94p1), Chante-Perdrix Obs. (Sept. 13.86-87p3), Altamira Obs. (Sept. 13.00-02p3), and MLS (Sept. 17.37-39p4)

MPEC 2009-S18 - "18:59 UT" - Comet C/2009 P1 (Garradd)

CK09P010 C/2009 P1 (Garradd) (i=106.4°, q=1.560 AU, TP=2011 Dec. 25.8174 TT) from North Ryde Obs. (Sept. 11.53-56p2, 12.55-58p2 & 13.45-47p2), El Condor Obs. (Sept. 13.30-32p2 & 15.13-16p3), and Altamira Obs. (Sept. 14.07-09p3)

MPEC 2009-S17 - "18:55 UT" - Comet C/2009 O4 (Hill)

CK09O040 C/2009 O4 (Hill) from Remanzacco Obs. (Aug. 23.00p1), Alicante Obs. (Sept. 11.98-99p3), CAST Obs. (Sept. 12.91p1), Atlante Obs. (Sept. 13.03-04p3), Yatsuka Obs. (Sept. 13.53-54p2), Moriyama Obs. (Sept. 13.59p2), Altamira Obs. (Sept. 14.10-11p3), El Condor Obs. (Sept. 15.06-09p3), CSS (Sept. 16.23-28p7), and Farm Cove Obs. (Sept. 16.52p3)

MPEC 2009-S16 - "18:50 UT" - Comet P/2009 O3 (Hill)

PK09O030 P/2009 O3 (Hill) from Modra Obs. (Sept. 6.03-04p3), LINEAR (Sept. 12.31-34p4), Atlante Obs. (Sept. 14.02p1, 14.06p1 & 14.11p1), and the Spacewatch 0.9m telescope (Sept. 17.30-34p3)

MPEC 2009-S15 - "18:46 UT" - Comet C/2009 O2 (Catalina)

CK09O020 C/2009 O2 (Catalina) from Piszkesteto Sta. (Aug. 20.91-92p2), Nazaret Obs. (Sept. 10.86p3 & 12.90p2), and Castelmartini Obs. (Sept. 11.85p1)

MPEC 2009-S14 - "18:02 UT" - Comet C/2009 F6 (Yi-SWAN)

CK09F060 C/2009 F6 (Yi-SWAN) from Ageo Obs. (Aug. 26.79p2, 28.79p2 & Sept. 9.80p2)

MPEC 2009-S13 - "16:38 UT" - 2009 SL

K09S00L 2009 SL was discovered at 0938 UT on 17 Sept. by MLS, which observed it at Sept. 17.27-29p4 and 17.40-46p12. The discovery was confirmed by Miles/Faulkes North (Sept. 17.57p4).

MPEC 2009-S12 - "16:34 UT" - 2009 SK

K09S00K 2009 SK (risk-listed) was discovered at 0713 UT on 17 Sept. by MLS, which observed it at Sept. 17.30-32p4 and 17.40-44p8. The discovery was confirmed by Miles/Faulkes North (Sept. 17.47p3).

MPEC 2009-S11 - "16:31 UT" - 2009 SJ

K09S00J 2009 SJ was discovered at 0634 UT on 17 Sept. by CSS, which observed it at Sept. 17.27-33p8. The discovery was confirmed by Miles/Faulkes North (Sept. 17.52p3).

MPEC 2009-S10 - "16:28 UT" - 2009 SH

K09S00H 2009 SH was discovered at 0607 UT on 17 Sept. by MLS, which observed it at Sept. 17.23-26p7 and 17.33-35p4. The discovery was confirmed by Miles/Faulkes North (Sept. 17.47p3).

MPEC 2009-S09 - "12:30 UT" - 2009 SG

K09S00G 2009 SG was discovered at 0742 UT on 16 Sept. by CSS, which observed it at Sept. 16.32-35p4 and 16.40-43p4. The discovery was confirmed by Moriyama Obs. (Sept. 16.61-62p2), Doc Greiner Research Obs. (DGRO) (Sept. 17.15p4), and Sabino Canyon Obs. (Sept. 17.29-30p3).

MPEC 2009-S08 - "12:24 UT" - 2009 SF

K09S00F 2009 SF was discovered at 0729 UT on 16 Sept. by MLS, which observed it at Sept. 16.31-39p12 at V=20.1-22.3 and 17.26p4 at V=20.4-8.

MPEC 2009-S07 - "12:20 UT" - 2009 SD

K09S00D 2009 SD (risk-listed) was discovered at 0649 UT on 16 Sept. by MLS, which observed it at Sept. 16.28-35p8 and 17.20-22p4. The discovery was confirmed by the Spacewatch 1.8m telescope (Sept. 17.22-23p3).

MPEC 2009-S06 - "12:16 UT" - 2009 SC

K09S00C 2009 SC was discovered at 0556 UT on 16 Sept. by MLS, which observed it at Sept. 16.25-27p4, 16.34-36p4, 17.26-29p8, and 17.33-35p4. The discovery was confirmed by Great Shefford Obs. (Sept. 16.94-96p3) and Spacewatch 1.8m (Sept. 17.19p2 & 17.30-31p3).

MPEC 2009-S05 - "12:13 UT" - 2009 SB

K09S00B 2009 SB (risk-listed) was discovered at 0551 UT on 16 Sept. by MLS, which observed it at Sept. 16.24-28p8 at V=21.4-22.3 and 17.23-26p7 at V=21.1-22.1. The discovery was confirmed by Spacewatch 1.8m (Sept. 17.31-32p3).

<< DOU on 17 Sept. '09 >> MPEC 2009-S04 - "06:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K09R03Z 2009 RZ3 from Great Shefford Obs. (Sept. 16.89p3)
Observations of recently (no longer) risk-listed objects
K09R00N 2009 RN (Q=4.529 AU, arc=5 days, H=19.9 ~355m) from Spacewatch 1.8m (Sept. 16.27-28p3)
K09Q35B 2009 QB35 (arc=18 days, H=19.8 ~371m) from Sabino Canyon Obs. (Aug. 29.39-40p2)
K09Q34F 2009 QF34 (small asteroid, arc=20 days, H=22.6 ~102m) from Spacewatch 1.8m (Sept. 16.28-30p3)
Observations of small asteroids (H>22.0)
K09R03Y 2009 RY3 (arc=3 days, H=24.6 ~41m) from the Siding Spring Survey (SSS) (Sept. 16.47p2)
K09R02G 2009 RG2 (arc=3 days, H=25.7 ~25m) from DGRO (Sept. 16.17-18p3)
K09R01U 2009 RU1 (arc=3 days, H=24.2 ~49m) from Astronomical Research Obs. (ARO) (Sept. 15.10-11p3)
K09R01T 2009 RT1 (arc=5 days, H=23.6 ~65m) from SSS (Sept. 15.55p1 & 16.45-46p2) and CSS (Sept. 16.25-26p4)
K09Q34Z 2009 QZ34 (arc=19 days, H=22.5 ~107m) from Spacewatch 1.8m (Sept. 16.22p3)
K09Q32L 2009 QL32 (arc=21 days, H=24.5 ~43m) from Spacewatch 1.8m (Sept. 16.23p1)
K09Q23C 2009 QC23 (arc=25 days, H=24.8 ~37m) from Spacewatch 1.8m (Sept. 16.20-21p3)
K09Q05O 2009 QO5 (arc=29 days, H=22.1 ~129m) from Spacewatch 1.8m (Sept. 16.30-31p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K09R01V 2009 RV1 (arc=4 days, H=22.0 ~135m) from ARO (Sept. 15.26-27p3) and Spacewatch 1.8m (Sept. 16.40-41p3)
K09Q08R 2009 QR8 (arc=29 days, H=21.8 ~148m) from Spacewatch 1.8m (Sept. 16.32-33p3)
K09Q00S 2009 QS (arc=30 days, H=22.0 ~135m) from Spacewatch 0.9m (Sept. 16.12-16p3)
Observations of other objects
K09R02H 2009 RH2 (arc=3 days, H=21.5 ~170m) from DGRO (Sept. 16.17p3)
K09R01D 2009 RD1 (arc=5 days, H=20.6 ~257m) from SSS (Sept. 15.58p1)
K09R00M 2009 RM (Q=4.379 AU, arc=6 days, H=18.3 ~741m) from ARO (Sept. 15.07-08p3), SSS (Sept. 15.49p1), and Great Shefford Obs. (Sept. 16.86-88p3)
K09Q34G 2009 QG34 (Q=4.580 AU, arc=19 days, H=19.7 ~389m) from ARO (Sept. 15.31-32p3)
K09Q33Y 2009 QY33 (arc=29 days, H=19.5 ~426m) from CSS (Sept. 16.22-25p4)
K09Q08E 2009 QE8 (arc=2 opp, H=18.0 ~851m) from MLS (Sept. 16.29-31p4)
K09Q02H 2009 QH2 (arc=28 days, H=21.2 ~195m) from Lumijoki Obs. (Sept. 13.93-94p3)
K09K03C 2009 KC3 (Q=5.454 AU, arc=130 days, H=18.2 ~776m) from Velikie Luki Obs. (Sept. 15.81-83p3) and Modra Obs. (Sept. 16.02-05p6)
K09H77V 2009 HV77 (arc=149 days, H=20.7 ~245m) from CSS (Sept. 16.22-25p4)
K09H00B 2009 HB (arc=2 opp, H=18.0 ~851m) from MLS (Sept. 16.13-15p3)
K08V00F 2008 VF (arc=2 opp, H=19.4 ~446m) from Spacewatch 0.9m (Sept. 16.46-49p2)
K07E00L 2007 EL (arc=2 opp, H=19.5 ~426m) from MLS (Sept. 16.47-49p4)
K06X02G 2006 XG2 (arc=2 opp, H=20.3 ~295m) from Spacewatch 1.8m (Sept. 16.43-45p3)
K06W01W 2006 WW1 (arc=5 opp, H=19.1 ~513m) from ARO (Sept. 15.29p2 at V=22.1-2)
K06V02T 2006 VT2 (q=0.350 AU, arc=3 opp, H=18.2 ~776m) from Spacewatch 1.8m (Sept. 16.42-43p3 at V=21.9-22.3)
K06B10C 2006 BC10 (arc=4 opp, H=19.5 ~426m) from ARO (Sept. 15.30-32p3 at V=22.0-22.3) and MLS (Sept. 16.41-43p4 at V=21.9-22.5)
K05YC8X 2005 YX128 (arc=3 opp, H=18.8 ~589m) from Spacewatch 0.9m (Sept. 16.12-17p3)
K05U05M 2005 UM5 (arc=2 opp, H=20.7 ~245m) from Spacewatch 1.8m (Sept. 16.36-37p2)
K05T15E 2005 TE15 (arc=3 opp, H=19.8 ~371m) from CSS (Sept. 16.43-45p4)
K05S19G 2005 SG19 (Q=4.171 AU, arc=2 opp, H=16.6 ~1.62 km) from SSS (Sept. 16.48-51p4)
K04S19Z 2004 SZ19 (arc=4 opp, H=18.7 ~616m) from Spacewatch 1.8m (Sept. 16.48-49p3)
K02X04G 2002 XG4 (arc=3 opp, H=18.2 ~776m) from Spacewatch 1.8m (Sept. 16.46-47p2)
K02R25Q 2002 RQ25 (arc=4 opp, H=20.5 ~269m) from CSS (Sept. 16.23-25p4)
K02A07P 2002 AP7 (arc=4 opp, H=19.3 ~467m) from Spacewatch 1.8m (Sept. 16.47-48p3)
K00V61H 2000 VH61 (Q=4.252 AU, arc=3 opp, H=19.2 ~490m) from ARO (Sept. 15.10-13p3 at V=22.8-23.0)
K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from Boambee Obs. (Sept. 14.36-38p3 & 15.45-47p3)
L7683 217683 1999 RP36 from CSS (Sept. 16.40-43p4)
L7390 217390 2005 CW25 from Astrodomi Obs. (Sept. 10.16-18p2 & 13.13-15p2)
L5167 215167 2000 EL26 from SSS (Sept. 16.53-54p2)
L2546 212546 2006 SV19 from Astrodomi Obs. (Sept. 10.15p1 & 13.14p1) and Boambee Obs. (Sept. 14.36-38p3 & 15.45-47p3)
H7614 177614 2004 HK33 from Astrodomi Obs. (Sept. 10.00-02p2)
G2004 162004 1991 VE from Spacewatch 0.9m (Sept. 16.48p1)
F2664 152664 1998 FW4 from DGRO (Sept. 17.17-18p20)
E3651 143651 2003 QO104 from Astrodomi Obs. (Sept. 10.13-18p3 & 13.10-15p3) and Boambee Obs. (Sept. 14.36-38p3 & 15.45-47p3)
68216 68216 2001 CV26 from AAAA Buenos Aires Obs. (Sept. 12.24-26p3)
52762 52762 1998 MT24 from Astrodomi Obs. (Sept. 11.01-03p2)
24761 24761 Ahau (1993 BW2) from Astrodomi Obs. (Sept. 10.99-03p3) and Boambee Obs. (Sept. 14.36-38p3 & 15.46-47p2)
17274 17274 2000 LC16 from Velikie Luki Obs. (Sept. 15.74-75p3)
15745 15745 1991 PM5 from Astrodomi Obs. (Sept. 10.13-17p3 & 13.10-14p3)
04954 4954 Eric (1990 SQ) from Astrodomi Obs. (Sept. 10.97-01p3)

MPEC 2009-S03 - "05:28 UT" - 2009 SA

K09S00A 2009 SA was discovered at 0557 UT on 16 Sept. by MLS, which observed it at Sept. 16.25-27p8 and 16.34-36p3. The discovery was confirmed by Miles/Faulkes North (Sept. 16.51-52p3), Great Shefford Obs. (Sept. 16.98-99p2), and Spacewatch 1.8m (Sept. 17.20p3).

Observers on 17 September '09

A total of 52 observing facilities appear in today's MPECs.

Code	Observer / observatory
`834`	AAAA Buenos Aires Obs. in Argentina, 2 in MPECs 2009-S04 & 2009-S23 -- C/2006 W3, 68216
`349`	Ageo Obs. in Japan, 8 in MPECs 2009-S14 & 2009-S23 -- C/2009 F6, C/2008 Q3, C/2008 N1, C/2006 Q1, 81P, 64P, 47P, 22P
`J10`	Alicante Obs. in Spain, 5 in MPECs 2009-S17 & 2009-S23 -- C/2009 O4, C/2008 P1, C/2006 W3, 43P, 22P
`J24`	Altamira Obs. in Spain, 16 in MPECs 2009-S17, 2009-S18, 2009-S19, 2009-S20, 2009-S21 & 2009-S23 -- P/2009 R2, P/2009 Q5, P/2009 Q4, P/2009 Q1, C/2009 P2, C/2009 P1, C/2009 O4, C/2008 P1, C/2007 VO53, C/2006 W3, C/2006 S3, 217P, 157P, 118P, 81P, 64P
`J20`	Aravaca Obs. in Spain, 1 in MPEC 2009-S23 -- C/2006 W3
`I37`	Astrodomi Obs. in Argentina, 8 in MPEC 2009-S04 -- 52762, 24761, 217390, 212546, 177614, 15745, 143651, 4954
`H55`	Astronomical Research Obs. (ARO) in Illinois, 7 in MPEC 2009-S04 -- 2009 RV1, 2009 RU1, 2009 RM, 2009 QG34, 2006 WW1, 2006 BC10, 2000 VH61
`J51`	Atlante Obs. in the Canary Islands, 8 in MPECs 2009-S16, 2009-S17, 2009-S20, 2009-S21 & 2009-S23 -- P/2009 Q5, P/2009 Q4, C/2009 O4, P/2009 O3, C/2008 P1, C/2006 W3, 157P, 22P
`432`	Boambee Obs. in New South Wales, 4 in MPEC 2009-S04 -- 2000 CO101, 24761, 212546, 143651
`215`	Buchloe Obs. in Germany, 1 in MPEC 2009-S23 -- 221P
`235`	CAST Obs. in Italy, 12 in MPECs 2009-S17 & 2009-S23 -- C/2009 O4, C/2008 P1, C/2008 N1, C/2008 FK75, C/2006 W3, C/2006 S3, C/2006 Q1, 157P, 127P, 47P, 43P, 22P
`160`	Castelmartini Obs. in Italy, 2 in MPECs 2009-S15 & 2009-S23 -- C/2009 P2, C/2009 O2
`703`	Catalina Sky Survey (CSS) in Arizona, 12 in MPECs 2009-S04, 2009-S09, 2009-S11, 2009-S17, 2009-S24, 2009-S25 & 2009-S27 -- 2009 SQ, 2009 SN, 2009 SM, 2009 SJ, 2009 SG, 2009 RT1, 2009 QY33, C/2009 O4, 2009 HV77, 2005 TE15, 2002 RQ25, 217683
`A77`	Chante-Perdrix Obs. in France, 3 in MPECs 2009-S19 & 2009-S23 -- P/2009 Q1, C/2009 P2, 22P
`H26`	Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPECs 2009-S04 & 2009-S09 -- 2009 SG, 2009 RH2, 2009 RG2, 152664
`I21`	El Condor Obs. in Argentina, 5 in MPECs 2009-S17, 2009-S18, 2009-S21, 2009-S22 & 2009-S23 -- C/2009 R1, P/2009 Q5, C/2009 P1, C/2009 O4, C/2006 W3
`114`	Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-S23 -- C/2009 P2
`E85`	Farm Cove Obs. in New Zealand, 2 in MPECs 2009-S17 & 2009-S23 -- C/2009 P2, C/2009 O4
`F656`	Richard Miles in England via Faulkes Telescope North in Hawaii, 8 in MPECs 2009-S03, 2009-S10, 2009-S11, 2009-S12, 2009-S13, 2009-S24, 2009-S26 & 2009-S27 -- 2009 SQ, 2009 SP, 2009 SM, 2009 SL, 2009 SK, 2009 SJ, 2009 SH, 2009 SA
`J95`	Great Shefford Obs. in England, 7 in MPECs 2009-S03, 2009-S04, 2009-S06, 2009-S25, 2009-S26 & 2009-S27 -- 2009 SQ, 2009 SP, 2009 SN, 2009 SC, 2009 SA, 2009 RZ3, 2009 RM
`750`	Hobbs Obs. in Wisconsin, 2 in MPEC 2009-S23 -- C/2006 W3, C/2006 S3
`704`	LINEAR in New Mexico, 5 in MPECs 2009-S16, 2009-S20 & 2009-S23 -- P/2009 Q4, P/2009 O3, 203P, 127P, 118P
`J87`	La Canada Obs. in Spain, 1 in MPEC 2009-S23 -- C/2006 W3
`212`	La Dehesilla Obs. in Spain, 1 in MPEC 2009-S23 -- C/2006 W3
`J59`	Linceo Obs. in Spain, 1 in MPEC 2009-S23 -- C/2006 W3
`A70`	Lumijoki Obs. in Finland, 1 in MPEC 2009-S04 -- 2009 QH2
`B82`	Maidbronn Obs. in Germany, 4 in MPEC 2009-S23 -- C/2008 P1, C/2006 W3, C/2006 S3, 43P
`J40`	Malaga Obs. in Spain, 2 in MPEC 2009-S23 -- C/2009 P2, 43P
`B90`	Malina River Obs. in Italy, 2 in MPECs 2009-S19 & 2009-S23 -- P/2009 R2, P/2009 Q1
`118`	Modra Obs. in Slovakia, 2 in MPECs 2009-S04 & 2009-S16 -- P/2009 O3, 2009 KC3
`213`	Montcabre Obs. in Spain, 1 in MPEC 2009-S23 -- 43P
`900`	Moriyama Obs. in Japan, 6 in MPECs 2009-S09, 2009-S17 & 2009-S23 -- 2009 SG, C/2009 P2, C/2009 O4, C/2008 P1, 127P, 22P
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 17 in MPECs 2009-S03, 2009-S04, 2009-S05, 2009-S06, 2009-S07, 2009-S08, 2009-S10, 2009-S12, 2009-S13, 2009-S19, 2009-S20, 2009-S24, 2009-S25 & 2009-S26 -- 2009 SP, 2009 SN, 2009 SM, 2009 SL, 2009 SK, 2009 SH, 2009 SF, 2009 SD, 2009 SC, 2009 SB, 2009 SA, 2009 QE8, P/2009 Q4, P/2009 Q1, 2009 HB, 2007 EL, 2006 BC10
`J93`	Mt. Tuffley Obs. in England, 1 in MPEC 2009-S23 -- 22P
`A13`	Naef Obs. in Switzerland, 1 in MPEC 2009-S27 -- 2009 SQ
`J47`	Nazaret Obs. in Spain, 8 in MPECs 2009-S15 & 2009-S23 -- C/2009 O2, C/2008 N1, C/2008 FK75, C/2006 W3, C/2006 S3, 157P, 43P, 22P
`423`	North Ryde Obs. in New South Wales, 3 in MPECs 2009-S18, 2009-S21 & 2009-S22 -- C/2009 R1, P/2009 Q5, C/2009 P1
`561`	Piszkesteto Sta. in Hungary, 1 in MPEC 2009-S15 -- C/2009 O2
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-S23 -- 81P
`473`	Remanzacco Obs. in Italy, 2 in MPECs 2009-S17 & 2009-S23 -- C/2009 O4, C/2006 W3
`461`	SZTE Asteroid Program (SZTE) in Hungary, 2 in MPEC 2009-S23 -- C/2007 VO53, C/2006 S3
`854`	Sabino Canyon Obs. in Arizona, 2 in MPECs 2009-S04 & 2009-S09 -- 2009 SG, 2009 QB35
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 5 in MPECs 2009-S21 & 2009-S23 -- P/2009 Q5, C/2008 P1, C/2006 W3, 217P, 157P
`204`	Schiaparelli Obs. in Italy, 4 in MPEC 2009-S23 -- C/2008 FK75, 203P, 81P, 47P
`E12`	Siding Spring Survey (SSS) in New South Wales, 6 in MPEC 2009-S04 -- 2009 RY3, 2009 RT1, 2009 RM, 2009 RD1, 2005 SG19, 215167
`691`	Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2009-S04 & 2009-S16 -- 2009 QS, P/2009 O3, 2008 VF, 2005 YX128, 162004
`291`	Spacewatch 1.8m telescope in Arizona, 18 in MPECs 2009-S03, 2009-S04, 2009-S05, 2009-S06 & 2009-S07 -- 2009 SD, 2009 SC, 2009 SB, 2009 SA, 2009 RV1, 2009 RN, 2009 QZ34, 2009 QR8, 2009 QO5, 2009 QL32, 2009 QF34, 2009 QC23, 2006 XG2, 2006 VT2, 2005 UM5, 2004 SZ19, 2002 XG4, 2002 AP7
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 3 in MPEC 2009-S23 -- P/2009 R2, 217P, 118P
`D25`	Tzec Maun Obs. Pingelly in Western Australia, 2 in MPECs 2009-S22 & 2009-S23 -- C/2009 R1, C/2008 Q3
`C00`	Velikie Luki Obs. in Russia, 2 in MPEC 2009-S04 -- 2009 KC3, 17274
`B42`	Vitebsk Obs. in Belarus, 9 in MPECs 2009-S19 & 2009-S23 -- P/2009 Q1, C/2008 P1, C/2006 Q1, 221P, 203P, 157P, 127P, 47P, 43P
`367`	Yatsuka Obs. in Japan, 6 in MPECs 2009-S17, 2009-S22 & 2009-S23 -- C/2009 R1, C/2009 O4, C/2008 N1, C/2006 W3, C/2006 Q1, 157P

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

Impact Risk Monitoring on 17 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 SK	JPL Sentry	2002	2031-2108	50	1.8e-06	-6.01	-6.51	0	JPL: "Analysis based on 15 observations spanning .17233 days (2009-Sep-17.30113 to 2009-Sep-17.473459)." Diameter approximately 0.031 km. from mean, weighted H=25.2.

2009 SD	JPL Sentry	1409	2013-2072	112	2.9e-05	-4.41	-5.27	0	JPL: "Analysis based on 15 observations spanning .94438 days (2009-Sep-16.28421 to 2009-Sep-17.22859)." Diameter approximately 0.026 km. from mean, weighted H=25.6.

2009 SB	JPL Sentry	1723	2013-2109	253	2.4e-07	-4.04	-4.80	0	JPL: "Analysis based on 18 observations spanning 1.0765 days (2009-Sep-16.24433 to 2009-Sep-17.3208)." Diameter approximately 0.218 km. from mean, weighted H=21.0.

2009 RZ3	JPL Sentry	1331	2021-2107	59	1.6e-07	-3.04	-3.68	0	JPL: "Analysis based on 22 observations spanning 2.6884 days (2009-Sep-14.20535 to 2009-Sep-16.89378)." Diameter approximately 0.643 km. from mean, weighted H=18.6.
2009 RZ3	NEODyS	1331	2021-2090	48	1.07e-07	-3.14	-3.74	0	NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2009/09/14.206 to 2009/09/16.895."

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 17 September '09

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

2358	Grabbed MPEC 2009-S26 - 2009 SP - see above Grabbed MPEC 2009-S27 - 2009 SQ - see above
2148	Grabbed MPEC 2009-S24 - 2009 SM - see above Grabbed MPEC 2009-S25 - 2009 SN - see above
2002	Noted that JPL Sentry has posted 2009 SK as an impact risk - see above Grabbed MPEC 2009-S17 - Comet C/2009 O4 (Hill) - see above Grabbed MPEC 2009-S18 - Comet C/2009 P1 (Garradd) - see above Grabbed MPEC 2009-S19 - Comet P/2009 Q1 (Hill) - see above Grabbed MPEC 2009-S20 - Comet P/2009 Q4 (Boattini) - see above Grabbed MPEC 2009-S21 - Comet P/2009 Q5 (McNaught) - see above Grabbed MPEC 2009-S22 - Comet C/2009 R1 (McNaught) - see above Grabbed MPEC 2009-S23 - Observations of Comets - see above
1855	Grabbed MPEC 2009-S14 - Comet C/2009 F6 (Yi-SWAN) - see above Grabbed MPEC 2009-S15 - Comet C/2009 O2 (Catalina) - see above Grabbed MPEC 2009-S16 - Comet P/2009 O3 (Hill) - see above
1724	Grabbed MPEC 2009-S10 - 2009 SH - see above Grabbed MPEC 2009-S11 - 2009 SJ - see above Grabbed MPEC 2009-S12 - 2009 SK - see above Grabbed MPEC 2009-S13 - 2009 SL - see above
1723	Noted that JPL Sentry has posted 2009 SB as an impact risk - see above
1409	Noted that JPL Sentry has posted 2009 SD as an impact risk - see above
1331	Noted that JPL Sentry has updated its 2009 RZ3 risk assessment - see above Noted that NEODyS has updated its 2009 RZ3 risk assessment - see above Grabbed MPEC 2009-S04 - Daily Orbit Update - see above Grabbed MPEC 2009-S05 - 2009 SB - see above Grabbed MPEC 2009-S06 - 2009 SC - see above Grabbed MPEC 2009-S07 - 2009 SD - see above Grabbed MPEC 2009-S08 - 2009 SF - see above Grabbed MPEC 2009-S09 - 2009 SG - see above
0536	Grabbed MPEC 2009-S03 - 2009 SA - see above

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