2008-09-27 Tracking News

Contents on 27 September '08

IAU Minor Planet Center
- NEOCP Activity -- four listings: 4 updated
- New MPECs -- fourteen MPECs
Observers -- 60 observing facilities
Impact Risk Monitoring -- six objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
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 27 September '08

The MPC's NEO Confirmation Page has 4 listings: 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of nine objects listed on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

New MPECs on 27 September '08

Minor Planet Electronic Circulars

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

MPEC 2008-S69 time-stamped "06:07 UT" - Daily Orbit Update - see below
MPEC 2008-S70 time-stamped "13:49 UT" - Comet C/2008 P1 (Garradd) - see below
MPEC 2008-S71 time-stamped "13:53 UT" - Comet C/2008 Q1 (Maticic) - see below
MPEC 2008-S72 time-stamped "13:56 UT" - Comet P/2008 Q2 (Ory) - see below
MPEC 2008-S73 time-stamped "14:00 UT" - Comet C/2008 Q3 (Garradd) - see below
MPEC 2008-S74 time-stamped "14:05 UT" - Comet P/2008 QP20 (Linear-Hill) - see below
MPEC 2008-S75 time-stamped "14:23 UT" - Comet P/2008 R1 (Garradd) - see below
MPEC 2008-S76 time-stamped "14:28 UT" - Comet C/2008 R3 (LINEAR) - see below
MPEC 2008-S77 time-stamped "14:33 UT" - Comet P/2008 S1 = 2008 JK (Catalina-McNaught) - see below
MPEC 2008-S78 time-stamped "14:48 UT" - Observations of Comets - see below
MPEC 2008-S79 time-stamped "16:31 UT" - 2008 SH82 - see below
MPEC 2008-S80 time-stamped "16:36 UT" - 2008 SJ82 - see below
MPEC 2008-S81 time-stamped "18:26 UT" - Comets C/2001 D1, 2008 S2 (SOHO) - see below
MPEC 2008-S82 time-stamped "22:15 UT" - Comet C/2001 D1 = 2004 X7 = 2008 S2 (SOHO)

MPEC 2008-S82 - "22:15 UT" - Comet C/2001 D1 = 2004 X7 = 2008 S2 (SOHO)

CK08S020 C/2008 S2 (SOHO) (q=0.047 AU, Q=4.806 AU, TP=2008 Sept. 17.95597 TT)
CK04X070 C/2004 X7 (SOHO) (q=0.047 AU, Q=4.807 AU, TP=2004 Dec. 7.82222 TT)
CK01D010 C/2001 D1 (SOHO) (q=0.050 AU, Q=4.823 AU, TP=2001 Feb. 18.76929 TT)

MPEC 2008-S81 - "18:26 UT" - Comets C/2001 D1, 2008 S2 (SOHO)

CK08S020 C/2008 S2 (SOHO) (i=19.9°, q=0.047 AU, TP=2008 Sept. 17.96) from the LASCO Coronagraph 2 aboard the Solar & Heliospheric Obs. (SOHO) (Sept. 17.81-92p16 & 18.27-38p16)
CK01D010 C/2001 D1 (SOHO) (i=18.4°, q=0.049 AU, TP=2001 Feb. 18.85) from SOHO C2 (2001 Feb. 18.41-53p50 & 2001 Feb. 18.91-01p30)

MPEC 2008-S80 - "16:36 UT" - 2008 SJ82

K08S82J 2008 SJ82 (risk-listed, H=20.9 ~224m) was discovered at 1756 UT on 26 Sept. by the Siding Spring Survey (SSS), which observed it at Sept. 26.75-79p5 and 27.66p1. The discovery was confirmed by Mt. John Obs. (Sept. 27.48-49p4 & 27.68p3).

MPEC 2008-S79 - "16:31 UT" - 2008 SH82

K08S82H 2008 SH82 (Earth MOID=8.8 LD, H=21.2 ~195m) was discovered at 0506 UT on 26 Sept. by the Mt. Lemmon Survey (MLS), which observed it at Sept. 26.21-23p4 and 27.22-24p3. The discovery was confirmed by Great Shefford Obs. (Sept. 26.88-90p3).

MPEC 2008-S78 - "14:48 UT" - Observations of Comets

PK08O020 P/2008 O2 (McNaught) from Auckland Obs. (Sept. 22.44p2 & 25.45-46p3) and Moriyama Obs. (Sept. 22.55-56p2)
CK08N010 C/2008 N1 (Holmes) from Astronomical Research Obs. (ARO) (Sept. 17.09-10p3 & 24.17-18p3), Terres Blanches Obs. (Sept. 24.99p1), and La Vara Obs. (Sept. 26.01p3)
PK08L020 P/2008 L2 (Hill) from Moriyama Obs. (Sept. 22.63-64p2 & 24.62-63p2), Konan Obs. (Sept. 22.64p1), Vitebsk Obs. (Sept. 22.88-89p5 & 26.91-93p3), the Catalina Sky Survey (CSS) (Sept. 23.22-25p4), and La Vara Obs. (Sept. 26.04-05p3)
CK08J060 C/2008 J6 (Hill) from Ageo Obs. (Sept. 9.73p2), Schiaparelli Obs. (Sept. 17.05p1 & 17.10p1), and Vitebsk Obs. (Sept. 26.89-90p2)
PK08J030 P/2008 J3 (McNaught) from North Ryde Obs. (Sept. 23.40-44p2, 24.46-48p2 & 25.48-52p2) and Kambah Obs. (Sept. 24.55p2)
CK08J010 C/2008 J1 (Boattini) from Aravaca Obs. (Sept. 19.83-84p2), La Vara Obs. (Sept. 23.89p3 & 25.99-00p3), Malaga Obs. (Sept. 24.83p1 & 24.87-91p2), and RAS Obs. Mayhill (Sept. 26.45-47p3)
CK08A010 C/2008 A1 (McNaught) from Auckland Obs. (Sept. 22.35p3 & 25.36p3), Cristo Rey Obs. (Sept. 25.96-97p5), and Farm Cove Obs. (Sept. 26.30p3)
CK07W010 C/2007 W1 (Boattini) from Moriyama Obs. (Sept. 22.65-66p2), Konan Obs. (Sept. 22.65-67p3), Vitebsk Obs. (Sept. 22.91p1), and Terres Blanches Obs. (Sept. 24.00-01p4)
CK07U010 C/2007 U1 (LINEAR) from Schiaparelli Obs. (Sept. 17.07p1 & 17.11p1), Nazaret Obs. (Sept. 22.05p3), Moriyama Obs. (Sept. 22.71-72p2), Konan Obs. (Sept. 22.72-73p3), and Petit Jean Mtn. South Obs. (PJMSO) (Sept. 23.35-36p6 & 27.41-42p6)
CK07Q030 C/2007 Q3 (Siding Spring) from Kambah Obs. (Sept. 23.73-74p2 & 24.73-74p2) and Auckland Obs. (Sept. 25.51p3)
CK07N030 C/2007 N3 (Lulin) from Auckland Obs. (Sept. 22.41-42p3 & 25.37p3), Moriyama Obs. (Sept. 22.43-44p2), Hiratsuka Obs. (Sept. 22.44-45p3), Yatsuka Obs. (Sept. 22.48p3), Nazaret Obs. (Sept. 23.84-86p4 & 26.84-86p4), La Vara Obs. (Sept. 23.84p3), Vicksburg Obs. (Sept. 24.04p4), and Farm Cove Obs. (Sept. 26.30-31p3)
CK07G010 C/2007 G1 (LINEAR) from Smolyan Obs. (June 26.90p5) and Auckland Obs. (Sept. 22.41p3 & 25.37p3)
CK06W030 C/2006 W3 (Christensen) from LINEAR (Sept. 19.35-41p4), Cantabria Obs. (Sept. 21.16-19p3), Yatsuka Obs. (Sept. 22.59-60p3), Vitebsk Obs. (Sept. 22.00-01p3), Aravaca Obs. (Sept. 23.84-85p4 & 24.84-88p4), La Vara Obs. (Sept. 23.98p3 & 26.07p3), Moriyama Obs. (Sept. 24.69-70p2), and Malaga Obs. (Sept. 24.80-81p4)
CK06S030 C/2006 S3 (LONEOS) from the SZTE Asteroid Program (SZTE) (Aug. 25.91-92p3), CSS (Sept. 21.33-35p4), Vicksburg Obs. (Sept. 22.22-25p2 & 23.20-25p3), Naef Obs. (Sept. 22.86-88p2), Terres Blanches Obs. (Sept. 24.97p1), and Chante-Perdrix Obs. (Sept. 26.88-89p3)
CK06O02F C/2006 OF2 (Broughton) from Schiaparelli Obs. (Sept. 17.08p1 & 17.13p1), Cantabria Obs. (Sept. 21.13-18p3), Yatsuka Obs. (Sept. 22.60p2), Moriyama Obs. (Sept. 22.77-78p2), Aravaca Obs. (Sept. 23.93p1 & 24.89p2), La Vara Obs. (Sept. 23.99p3 & 26.06p3), Mt. Tuffley Obs. (Sept. 25.95p3 & 26.98p3), and PJMSO (Sept. 27.43-44p6)
0205P 205P/Giacobini from Schiaparelli Obs. (Sept. 14.99p1, 16.98p1 & 23.93-94p2), Nazaret Obs. (Sept. 21.95-96p6), Ageo Obs. (Sept. 23.49p2), La Vara Obs. (Sept. 23.87p3, 24.87-88p3 & 25.95-96p3), Montana Cabreja Obs. (Sept. 24.03-04p2), Vicksburg Obs. (Sept. 24.19-21p3), Paus Obs. (Sept. 24.79-80p2), Vitebsk Obs. (Sept. 24.83-84p3), Chante-Perdrix Obs. (Sept. 24.83-87p15 & 26.80-82p5), Aravaca Obs. (Sept. 24.86p2), Malaga Obs. (Sept. 24.95-97p3), Cordell-Lorenz Obs. (Sept. 25.08-11p3, 25.17p2 & 26.08-19p8), Hibiscus Obs. (Sept. 25.33-35p10), Auckland Obs. (Sept. 25.43p3), Great Shefford Obs. (Sept. 25.87-91p5), and Kiev Comet Station (Sept. 26.76-81p10)
0203P 203P/Korlevic from MLS (Sept. 20.32-34p4) and Naef Obs. (Sept. 25.89-93p2)
0200P 200P/Larsen from Nazaret Obs. (Sept. 21.01-02p4), Vitebsk Obs. (Sept. 22.95p1), Moriyama Obs. (Sept. 24.64-65p2), and La Vara Obs. (Sept. 26.02-04p3)
0199P 199P/Shoemaker 4 from Nazaret Obs. (Sept. 22.82-83p4 & 23.83p4)
0197P 197P/LINEAR from Kambah Obs. (Sept. 21.67-68p2 & 24.70-71p2)
0144P 144P/Kushida from CSS (Sept. 23.37-39p4), LINEAR (Sept. 24.35-40p5), and Vitebsk Obs. (Sept. 24.92p1)
0067P 67P/Churyumov-Gerasimenko from Vicksburg Obs. (Sept. 22.16-17p2), Auckland Obs. (Sept. 22.43-44p3 & 25.41p3), Hiratsuka Obs. (Sept. 22.52p3), Yatsuka Obs. (Sept. 22.57p3), Konan Obs. (Sept. 22.58-59p3), La Vara Obs. (Sept. 24.90p2), Chante-Perdrix Obs. (Sept. 26.84-86p3), and Los Molinos Obs. (Sept. 27.12-15p5)
0061P 61P/Shajn-Schaldach from Schiaparelli Obs. (Sept. 17.06p1 & 17.11p1), Moriyama Obs. (Sept. 22.73-74p2), Konan Obs. (Sept. 22.74-75p2), Nira Obs. (Sept. 23.01-03p3), Vitebsk Obs. (Sept. 23.02-04p2), LINEAR (Sept. 23.35-40p5), and PJMSO (Sept. 23.37-38p5)
0059P 59P/Kearns-Kwee from Moriyama Obs. (Sept. 22.69-70p2), Konan Obs. (Sept. 22.69-70p3), Vitebsk Obs. (Sept. 22.97p1), and PJMSO (Sept. 27.33-35p6)
0051P 51P/Harrington from Schiaparelli Obs. (Sept. 17.08p1 & 17.13p1), Moriyama Obs. (Sept. 22.75-76p2), PJMSO (Sept. 23.33-34p5 & 27.31-33p6), and Vitebsk Obs. (Sept. 25.03-04p3)
0047P 47P/Ashbrook-Jackson from Hiratsuka Obs. (Sept. 22.53-54p3), Konan Obs. (Sept. 22.56-57p3), Yatsuka Obs. (Sept. 22.58p3), La Vara Obs. (Sept. 23.85-86p3), Vicksburg Obs. (Sept. 25.18-20p2), Chante-Perdrix Obs. (Sept. 26.84p3), and Los Molinos Obs. (Sept. 27.09-11p4)
0044P 44P/Reinmuth 2 from Kiev Comet Station (Sept. 9.06p1), Buchloe Obs. (Sept. 9.10p3), Vitebsk Obs. (Sept. 25.06p1), and PJMSO (Sept. 27.44-46p6)
0029P 29P/Schwassmann-Wachmann 1 from Moriyama Obs. (Sept. 22.80-81p2), Ageo Obs. (Sept. 22.81p3), Vitebsk Obs. (Sept. 23.07-08p2 & 25.08p2), Gualba Obs. (Sept. 25.12p1), La Vara Obs. (Sept. 26.08-09p3), and Yatsuka Obs. (Sept. 26.81p3)
0019P 19P/Borrelly from Schiaparelli Obs. (Sept. 17.15-16p3), Moriyama Obs. (Sept. 22.83p2), and Yatsuka Obs. (Sept. 26.81-82p3)
0015P 15P/Finlay from Schiaparelli Obs. (Sept. 17.14-16p2) and Moriyama Obs. (Sept. 22.82p2)
0006P 6P/d'Arrest from Moriyama Obs. (Sept. 22.57p2), Yatsuka Obs. (Sept. 22.59p3), Konan Obs. (Sept. 22.60-61p3), Los Molinos Obs. (Sept. 23.17-20p15 & 26.18-19p4), Kambah Obs. (Sept. 24.63p2), and North Ryde Obs. (Sept. 25.62-64p2 & 26.60-61p2)

MPEC 2008-S77 - "14:33 UT" - Comet P/2008 S1 = 2008 JK (Catalina-McNaught)

PK08S010 P/2008 S1 (Catalina-McNaught) (q=1.191 AU, Q=5.962 AU, TP=2008 Oct. 1.81600 TT) from Hibiscus Obs. (Sept. 21.22p3 & 24.23p1), Auckland Obs. (Sept. 22.36p3 & 25.38p3), North Ryde Obs. (Sept. 24.40p1), and Farm Cove Obs. (Sept. 25.34-35p3 & 26.32-33p2)

MPEC 2008-S76 - "14:28 UT" - Comet C/2008 R3 (LINEAR)

CK08R030 C/2008 R3 (LINEAR) (i=43.2°, q=1.909 AU, Q=34.820 AU, TP=2008 Nov. 22.478 TT) from Schiaparelli Obs. (Sept. 16.97-99p2), Vicksburg Obs. (Sept. 22.07-08p3 & 24.06-08p3), Hiratsuka Obs. (Sept. 22.47-48p3), Nazaret Obs. (Sept. 23.88-89p4), and La Vara Obs. (Sept. 23.91-92p3)

MPEC 2008-S75 - "14:23 UT" - Comet P/2008 R1 (Garradd)

PK08R010 P/2008 R1 (Garradd) (q=1.793 AU, TP=2008 July 25.29595 TT) from SSS (July 15.60p1 & Sept. 25.53-54p2)

MPEC 2008-S74 - "14:05 UT" - Comet P/2008 QP20 (Linear-Hill)

PK08Q20P P/2008 QP20 (LINEAR-Hill) (q=1.723 AU, Q=5.256 AU, TP=2008 Nov. 2.5189 TT) from Cordell-Lorenz Obs. (Sept. 25.30-33p2 & 26.36-39p3), Kiev Comet Station (Sept. 26.84-85p4), and Vitebsk Obs. (Sept. 26.94p2)

MPEC 2008-S73 - "14:00 UT" - Comet C/2008 Q3 (Garradd)

CK08Q030 C/2008 Q3 (Garradd) (i=140.7°, q=1.799 AU, TP=2009 June 23.0860 TT) from Kambah Obs. (Sept. 24.68-69p2) and North Ryde Obs. (Sept. 26.48-52p2)

MPEC 2008-S72 - "13:56 UT" - Comet P/2008 Q2 (Ory)

PK08Q020 P/2008 Q2 (Ory) (q=1.382 AU, Q=5.099 AU, TP=2008 Oct. 19.0082 TT) from Moriyama Obs. (Sept. 22.67-68p2), Konan Obs. (Sept. 22.67-68p3), LINEAR (Sept. 23.30-34p5), Chante-Perdrix Obs. (Sept. 24.89-90p3), Vitebsk Obs. (Sept. 24.99p4), Farm Cove Obs. (Sept. 25.51p3), Sandlot Obs. (Sept. 26.37-41p4), Jurassien-Vicques Obs. (Sept. 26.91-93p2), La Canada Obs. (Sept. 27.10-11p3), and PJMSO (Sept. 27.36-37p6)

MPEC 2008-S71 - "13:53 UT" - Comet C/2008 Q1 (Maticic)

CK08Q010 C/2008 Q1 (Maticic) (i=118.6°, q=2.963 AU, TP=2008 Dec. 29.4368 TT) from Schiaparelli Obs. (Sept. 16.99p1 & 17.03p1), Hiratsuka Obs. (Sept. 22.46p3), and La Vara Obs. (Sept. 23.87-88p3, 24.91-92p3 & 25.98p3)

MPEC 2008-S70 - "13:49 UT" - Comet C/2008 P1 (Garradd)

CK08P010 C/2008 P1 (Garradd) (i=64.3°, q=3.898 AU, TP=2009 July 22.7413 TT) from North Ryde Obs. (Sept. 23.52-53p2, 24.50-54p2, 25.54p1, 25.61p1 & 26.54-57p2), Kambah Obs. (Sept. 24.67p2), Auckland Obs. (Sept. 25.52p3), and Grove Creek Obs. (Sept. 26.47p2)

<< DOU on 27 Sept. '08 >> MPEC 2008-S69 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K08S07T 2008 ST7 (small asteroid, arc=2 days, H=24.0 ~54m) from ARO (Sept. 26.23-24p3) and the Spacewatch 1.8m telescope (Sept. 26.30-31p3)
K08S00T 2008 ST (small asteroid, arc=4 days, H=27.1 ~13m) from ARO (Sept. 26.04p4)
K08R98M 2008 RM98 (Q=4.255 AU, arc=19 days, H=20.0 ~339m) from Spacewatch 1.8m (Sept. 26.28-29p3)
K08L00A 2008 LA (small asteroid, arc=107 days, H=23.1 ~81m) from David Tholen's team on Mauna Kea (Sept. 16.51-54p9 at R=22.9)
Observations of recently (no longer) risk-listed objects
K08S01U 2008 SU1 (arc=4 days, H=19.1 ~513m) from ARO (Sept. 26.15-16p4), Kinver Obs. (Sept. 26.93-94p6), and Celbridge Obs. (Sept. 26.94p1)
K08S00O 2008 SO (arc=5 days, H=20.8 ~234m) from ARO (Sept. 26.17-18p5)
K08R00V 2008 RV (arc=24 days, H=21.7 ~155m) from ARO (Sept. 26.21-22p3) and Celbridge Obs. (Sept. 26.95p1)
K08Q03T 2008 QT3 (arc=32 days, H=18.5 ~676m) from ARO (Sept. 26.04-05p3)
Observations of small asteroids (H>22.0)
K08S01T 2008 ST1 (arc=4 days, H=27.2 ~12m) from ARO (Sept. 26.30-32p3)
K08S00S 2008 SS (arc=5 days, H=22.2 ~123m) from ARO (Sept. 26.15-16p4)
K08S00P 2008 SP (arc=5 days, H=23.2 ~78m) from ARO (Sept. 26.13-14p2)
K08R24W 2008 RW24 (arc=20 days, H=22.9 ~89m) from ARO (Sept. 26.42-43p2)
K08R01K 2008 RK1 (Q=4.371 AU, arc=21 days, H=22.2 ~123m) from the Spacewatch 0.9m telescope (Sept. 25.18-21p3)
K08O00M 2008 OM (arc=63 days, H=22.2 ~123m) from ARO (Sept. 26.08-12p3 at V=22.1-2)
Observations of almost-small asteroids (21.7<H<=22.0)
K08O08Q 2008 OQ8 (arc=58 days, H=22.0 ~135m) from ARO (Sept. 26.23-25p3)
Observations of other objects
K08S07X 2008 SX7 (arc=5 days, H=18.3 ~741m) from SSS (Sept. 25.49p1)
K08S07R 2008 SR7 (arc=2 days, H=19.9 ~355m) from ARO (Sept. 26.08-09p4) and Powell Obs. (Sept. 26.38-40p3)
K08S01R 2008 SR1 (arc=3 days, H=20.3 ~295m) from ARO (Sept. 26.12p4)
K08S01Q 2008 SQ1 (Q=4.682 AU, arc=2 opp, H=18.2 ~776m) from El Guijo Obs. (Sept. 27.05p1)
K08S00Q 2008 SQ (arc=6 days, H=19.4 ~446m) from Celbridge Obs. (Sept. 26.97-98p2)
K08S00E 2008 SE (arc=7 days, H=19.0 ~537m) from ARO (Sept. 26.28-29p4), Miyaki-Argenteus Obs. (Sept. 26.71-83p20), and Celbridge Obs. (Sept. 26.96-97p2)
K08R98G 2008 RG98 (arc=16 days, H=17.2 ~1.23 km) from Spacewatch 0.9m (Sept. 25.17-21p3)
K08R24Y 2008 RY24 (arc=3 opp, H=17.8 ~933m) from ARO (Sept. 26.05-07p3)
K08R24X 2008 RX24 (arc=20 days, H=21.3 ~186m) from ARO (Sept. 26.19-21p3)
K08R24Q 2008 RQ24 (arc=21 days, H=20.5 ~269m) from ARO (Sept. 26.21-22p4)
K08J24O 2008 JO24 (arc=138 days, H=18.7 ~616m) from SSS (Sept. 25.66-70p4)
K06G02W 2006 GW2 (arc=2 opp, H=20.3 ~295m) from Spacewatch 1.8m (Sept. 26.37-38p3 at V=22.1-4)
K03G00W 2003 GW (i=49.4°, arc=3 opp, H=16.8 ~1.48 km) from Inastars Obs. (Sept. 25.95-97p4) and El Guijo Obs. (Sept. 26.87-88p3)
K02V17V 2002 VV17 (arc=4 opp, H=20.0 ~339m) from El Guijo Obs. (Sept. 26.81-84p3)
K02S41S 2002 SS41 (i=63.7°, arc=3 opp, H=17.3 ~1.17 km) from El Guijo Obs. (Sept. 27.01-03p3)
K02Q06Y 2002 QY6 (q=0.246 AU, arc=4 opp, H=19.5 ~426m) from Thompsonville Obs. (Sept. 27.16p6)
K01QG3M 2001 QM163 from SSS (Sept. 26.50-52p3, 26.59-60p2 & 26.68p1)
J98S70J 1998 SJ70 (arc=3 opp, H=18.4 ~708m) from Thompsonville Obs. (Sept. 27.17-18p6)
J0491 190491 2000 FJ10 from Spacewatch 0.9m (Sept. 25.29-32p3)
I5851 185851 2000 DP107 from Mt. Tuffley Obs. (Sept. 26.93p3)
G4400 164400 2005 GN59 from Mt. Tuffley Obs. (Sept. 26.94p3) and Thompsonville Obs. (Sept. 27.11-12p6)
G2900 162900 2001 HG31 from Spacewatch 0.9m (Sept. 25.47-50p3)
D7032 137032 1998 UO1 from Siegen Obs. (Sept. 26.91-92p3) and Kinver Obs. (Sept. 26.92p10)
88188 88188 2000 XH44 from Spacewatch 0.9m (Sept. 25.18-22p3)
39572 39572 1993 DQ1 from Thompsonville Obs. (Sept. 27.10-11p6)
16960 16960 1998 QS52 from Mt. Tuffley Obs. (Sept. 26.95p3)
08567 8567 1996 HW1 from Sabadell Obs. (Sept. 12.91-92p3) and Mt. Tuffley Obs. (Sept. 26.90p3)
04179 4179 Toutatis (1989 AC) from Thompsonville Obs. (Sept. 27.09-10p6)
03753 3753 Cruithne (1986 TO) from North Ryde Obs. (Sept. 26.62-65p2)
01980 1980 Tezcatlipoca (1950 LA) from SSS (Sept. 26.39-41p4)
01865 1865 Cerberus (1971 UA) from El Guijo Obs. (Sept. 26.97-98p2)
01627 1627 Ivar (1929 SH) from Goodricke-Pigott Obs. (Sept. 25.43-46p3) and Mt. Tuffley Obs. (Sept. 26.96p3)

Observers on 27 September '08

A total of 60 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 3 in MPEC 2008-S78 -- C/2008 J6, 205P, 29P
`J20`	Aravaca Obs., 4 in MPEC 2008-S78 -- C/2008 J1, C/2006 W3, C/2006 OF2, 205P
`H55`	Astronomical Research Obs. (ARO) in Illinois, 19 in MPECs 2008-S69 & 2008-S78 -- 2008 SU1, 2008 ST7, 2008 ST1, 2008 ST, 2008 SS, 2008 SR7, 2008 SR1, 2008 SP, 2008 SO, 2008 SE, 2008 RY24, 2008 RX24, 2008 RW24, 2008 RV, 2008 RQ24, 2008 QT3, 2008 OQ8, 2008 OM, C/2008 N1
`467`	Auckland Obs. in New Zealand, 9 in MPECs 2008-S70, 2008-S77 & 2008-S78 -- P/2008 S1, C/2008 P1, P/2008 O2, C/2008 A1, C/2007 Q3, C/2007 N3, C/2007 G1, 205P, 67P
`215`	Buchloe Obs. in Germany, 1 in MPEC 2008-S78 -- 44P
`J96`	Cantabria Obs. in Spain, 2 in MPEC 2008-S78 -- C/2006 W3, C/2006 OF2
`703`	Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2008-S78 -- P/2008 L2, C/2006 S3, 144P
`J65`	Celbridge Obs. in Ireland, 4 in MPEC 2008-S69 -- 2008 SU1, 2008 SQ, 2008 SE, 2008 RV
`A77`	Chante-Perdrix Obs. in France, 5 in MPECs 2008-S72 & 2008-S78 -- P/2008 Q2, C/2006 S3, 205P, 67P, 47P
`850`	Cordell-Lorenz Obs. in Tennessee, 2 in MPECs 2008-S74 & 2008-S78 -- P/2008 QP20, 205P
`I31`	Cristo Rey Obs. in Argentina, 1 in MPEC 2008-S78 -- C/2008 A1
`J27`	El Guijo Obs. in Spain, 5 in MPEC 2008-S69 -- 2008 SQ1, 2003 GW, 2002 VV17, 2002 SS41, 1865
`E85`	Farm Cove Obs. in New Zealand, 4 in MPECs 2008-S72, 2008-S77 & 2008-S78 -- P/2008 S1, P/2008 Q2, C/2008 A1, C/2007 N3
`683`	Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2008-S69 -- 1627
`J95`	Great Shefford Obs. in England, 2 in MPECs 2008-S78 & 2008-S79 -- 2008 SH82, 205P
`E16`	Grove Creek Obs. in New South Wales, 1 in MPEC 2008-S70 -- C/2008 P1
`442`	Gualba Obs. in Spain, 1 in MPEC 2008-S78 -- 29P
`F84`	Hibiscus Obs. in Tahiti, 2 in MPECs 2008-S77 & 2008-S78 -- P/2008 S1, 205P
`D88`	Hiratsuka Obs., 5 in MPECs 2008-S71, 2008-S76 & 2008-S78 -- C/2008 R3, C/2008 Q1, C/2007 N3, 67P, 47P
`B15`	Inastars Obs. in Germany, 1 in MPEC 2008-S69 -- 2003 GW
`185`	Jurassien-Vicques Obs. in Switzerland, 1 in MPEC 2008-S72 -- P/2008 Q2
`415`	Kambah Obs. in the Australian Capital Territory, 6 in MPECs 2008-S70, 2008-S73 & 2008-S78 -- C/2008 Q3, C/2008 P1, P/2008 J3, C/2007 Q3, 197P, 6P
`585`	Kiev Comet Station in the Ukraine, 3 in MPECs 2008-S74 & 2008-S78 -- P/2008 QP20, 205P, 44P
`J66`	Kinver Obs. in England, 2 in MPEC 2008-S69 -- 2008 SU1, 137032
`352`	Konan Obs. in Japan, 9 in MPECs 2008-S72 & 2008-S78 -- P/2008 Q2, P/2008 L2, C/2007 W1, C/2007 U1, 67P, 61P, 59P, 47P, 6P
`704`	LINEAR in New Mexico, 4 in MPECs 2008-S72 & 2008-S78 -- P/2008 Q2, C/2006 W3, 144P, 61P
`J87`	La Canada Obs. in Spain, 1 in MPEC 2008-S72 -- P/2008 Q2
`J38`	La Vara Obs. in Spain, 13 in MPECs 2008-S71, 2008-S76 & 2008-S78 -- C/2008 R3, C/2008 Q1, C/2008 N1, P/2008 L2, C/2008 J1, C/2007 N3, C/2006 W3, C/2006 OF2, 205P, 200P, 67P, 47P, 29P
`844`	Los Molinos Obs. in Uruguay, 3 in MPEC 2008-S78 -- 67P, 47P, 6P
`J40`	Malaga Obs. in Spain, 3 in MPEC 2008-S78 -- C/2008 J1, C/2006 W3, 205P
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-S69 -- 2008 LA
`D62`	Miyaki-Argenteus Obs. in Japan, 1 in MPEC 2008-S69 -- 2008 SE
`J45`	Montana Cabreja Obs. in the Canary Islands, 1 in MPEC 2008-S78 -- 205P
`900`	Moriyama Obs. in Japan, 16 in MPECs 2008-S72 & 2008-S78 -- P/2008 Q2, P/2008 O2, P/2008 L2, C/2007 W1, C/2007 U1, C/2007 N3, C/2006 W3, C/2006 OF2, 200P, 61P, 59P, 51P, 29P, 19P, 15P, 6P
`474`	Mt. John Obs. in New Zealand, 1 in MPEC 2008-S80 -- 2008 SJ82
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2008-S78 & 2008-S79 -- 2008 SH82, 203P
`J93`	Mt. Tuffley Obs. in England, 6 in MPECs 2008-S69 & 2008-S78 -- C/2006 OF2, 185851, 16960, 164400, 8567, 1627
`A13`	Naef Obs. in Switzerland, 2 in MPEC 2008-S78 -- C/2006 S3, 203P
`J47`	Nazaret Obs. in Spain, 6 in MPECs 2008-S76 & 2008-S78 -- C/2008 R3, C/2007 U1, C/2007 N3, 205P, 200P, 199P
`J29`	Nira Obs. in Spain, 1 in MPEC 2008-S78 -- 61P
`423`	North Ryde Obs. in New South Wales, 6 in MPECs 2008-S69, 2008-S70, 2008-S73, 2008-S77 & 2008-S78 -- P/2008 S1, C/2008 Q3, C/2008 P1, P/2008 J3, 3753, 6P
`B49`	Paus Obs. in Spain, 1 in MPEC 2008-S78 -- 205P
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPECs 2008-S72 & 2008-S78 -- P/2008 Q2, C/2007 U1, C/2006 OF2, 61P, 59P, 51P, 44P
`649`	Powell Obs. in Kansas, 1 in MPEC 2008-S69 -- 2008 SR7
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2008-S78 -- C/2008 J1
`461`	SZTE Asteroid Program in Hungary, 1 in MPEC 2008-S78 -- C/2006 S3
`619`	Sabadell Obs. in Spain, 1 in MPEC 2008-S69 -- 8567
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2008-S72 -- P/2008 Q2
`204`	Schiaparelli Obs. in Italy, 10 in MPECs 2008-S71, 2008-S76 & 2008-S78 -- C/2008 R3, C/2008 Q1, C/2008 J6, C/2007 U1, C/2006 OF2, 205P, 61P, 51P, 19P, 15P
`E12`	Siding Spring Survey (SSS) in New South Wales, 6 in MPECs 2008-S69, 2008-S75 & 2008-S80 -- 2008 SX7, 2008 SJ82, P/2008 R1, 2008 JO24, 2001 QM163, 1980
`510`	Siegen Obs. in Germany, 1 in MPEC 2008-S69 -- 137032
`071`	Smolyan Obs. in Bulgaria, 1 in MPEC 2008-S78 -- C/2007 G1
`2492`	LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 2 in MPEC 2008-S81 -- C/2008 S2, C/2001 D1
`691`	Spacewatch 0.9m telescope in Arizona, 5 in MPEC 2008-S69 -- 2008 RK1, 2008 RG98, 88188, 190491, 162900
`291`	Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2008-S69 -- 2008 ST7, 2008 RM98, 2006 GW2
`B26`	Terres Blanches Obs. in France, 3 in MPEC 2008-S78 -- C/2008 N1, C/2007 W1, C/2006 S3
`H53`	Thompsonville Obs. in Illinois, 5 in MPEC 2008-S69 -- 2002 QY6, 1998 SJ70, 39572, 164400, 4179
`H47`	Vicksburg Obs. in Mississippi, 6 in MPECs 2008-S76 & 2008-S78 -- C/2008 R3, C/2007 N3, C/2006 S3, 205P, 67P, 47P
`B42`	Vitebsk Obs. in Belarus, 14 in MPECs 2008-S72, 2008-S74 & 2008-S78 -- P/2008 QP20, P/2008 Q2, P/2008 L2, C/2008 J6, C/2007 W1, C/2006 W3, 205P, 200P, 144P, 61P, 59P, 51P, 44P, 29P
`367`	Yatsuka Obs., 8 in MPEC 2008-S78 -- C/2007 N3, C/2006 W3, C/2006 OF2, 67P, 47P, 29P, 19P, 6P

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

Impact Risk Monitoring on 27 September '08

**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.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
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

2008 SJ82	JPL Sentry	1932	2060-2102	9	3.7e-08	-5.60	-5.93	0	JPL: "Analysis based on 13 observations spanning .93324 days (2008-Sep-26.74755 to 2008-Sep-27.68079)." Diameter approximately 0.230 km. from mean, weighted H=20.8.

2008 SV11	NEODyS	1445	2009-2090	520	3.95e-07	-1.70	-1.74	0	NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2008/09/25.263 to 2008/09/26.261."

2008 ST7	JPL Sentry	1445	2073-2108	95	3.5e-05	-4.26	-5.13	0	JPL: "Analysis based on 35 observations spanning 2.0060 days (2008-Sep-24.29993 to 2008-Sep-26.3059)." Diameter approximately 0.054 km. from mean, weighted H=24.0.
2008 ST7	NEODyS	1445	2062-2089	20	1.03e-05	-4.72	-5.20	0	NEODyS: "Based on 38 optical observations (of which 6 are rejected as outliers) from 2008/09/24.301 to 2008/09/26.307."

2008 ST	JPL Sentry	1445	2047-2108	24	6.9e-05	-5.62	-6.05	0	JPL: "Analysis based on 31 observations spanning 3.8835 days (2008-Sep-22.16113 to 2008-Sep-26.04466)." Diameter approximately 0.013 km. from mean, weighted H=27.1.
2008 ST	NEODyS	1445	2047-2082	12	2.9e-05	-5.91	-6.07	0	NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2008/09/22.162 to 2008/09/26.045."

2008 RM98	JPL Sentry	1445	R E M O V E D						JPL: Risk listing removed at 0851 UTC.
2008 RM98	NEODyS	1445	R E M O V E D						-

2008 LA	JPL Sentry	1445	R E M O V E D						JPL: Risk listing removed at 0851 UTC.
2008 LA	NEODyS	1445	R E M O V E D						-

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 27 September '08

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

2306	Grabbed MPEC 2008-S82 - Comet C/2001 D1 = 2004 X7 = 2008 S2 (SOHO) - see above
1932	Noted that JPL Sentry has posted 2008 SJ82 as an impact risk - see above Grabbed MPEC 2008-S79 - 2008 SH82 - see above Grabbed MPEC 2008-S80 - 2008 SJ82 - see above Grabbed MPEC 2008-S81 - Comets C/2001 D1, 2008 S2 (SOHO) - see above
1606	Grabbed MPEC 2008-S78 - Observations of Comets - see above
1445	Noted that JPL Sentry has removed 2008 LA as an impact risk - see above Noted that NEODyS has removed 2008 LA as an impact risk - see above Noted that JPL Sentry has removed 2008 RM98 as an impact risk - see above Noted that NEODyS has removed 2008 RM98 as an impact risk - see above Noted that JPL Sentry has updated its 2008 ST risk assessment - see above Noted that NEODyS has updated its 2008 ST risk assessment - see above Noted that JPL Sentry has updated its 2008 ST7 risk assessment - see above Noted that NEODyS has updated its 2008 ST7 risk assessment - see above Noted that NEODyS has posted 2008 SV11 as an impact risk - see above Grabbed MPEC 2008-S69 - Daily Orbit Update - see above Grabbed MPEC 2008-S70 - Comet C/2008 P1 (Garradd) - see above Grabbed MPEC 2008-S71 - Comet C/2008 Q1 (Maticic) - see above Grabbed MPEC 2008-S72 - Comet P/2008 Q2 (Ory) - see above Grabbed MPEC 2008-S73 - Comet C/2008 Q3 (Garradd) - see above Grabbed MPEC 2008-S74 - Comet P/2008 QP20 (Linear-Hill) - see above Grabbed MPEC 2008-S75 - Comet P/2008 R1 (Garradd) - see above Grabbed MPEC 2008-S76 - Comet C/2008 R3 (LINEAR) - see above Grabbed MPEC 2008-S77 - Comet P/2008 S1 = 2008 JK (Catalina-McNaught) - see above

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