2008-01-21 Tracking News

Contents on 21 January '08

IAU Minor Planet Center
- NEOCP Activity -- eight listings: 8 updated
- New MPECs -- six MPECs
- Observers -- 61 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
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 21 January '08

The MPC's NEO Confirmation Page has 8 listings: 8 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had eight updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of twelve 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 21 January '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been six MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-B22 time-stamped "00:01 UT" - Comet C/2007 W1 (Boattini) - see below
MPEC 2008-B23 time-stamped "00:08 UT" - Comet C/2007 W3 (LINEAR) - see below
MPEC 2008-B24 time-stamped "00:12 UT" - Comet C/2007 Y1 (LINEAR) - see below
MPEC 2008-B25 time-stamped "00:15 UT" - Comet C/2008 A1 (McNaught) - see below
MPEC 2008-B26 time-stamped "00:34 UT" - Observations of Comets - see below
MPEC 2008-B27 time-stamped "07:10 UT" - Daily Orbit Update

<< DOU on 21 Jan. '08 >> MPEC 2008-B27 - "07:10 UT" - Daily Orbit Update

Observations of risk-listed objects
K08A33K 2008 AK33 (arc=5 days, H=20.7 ~245m) from Magdalena Ridge Obs. (MRO) (Jan. 20.25-26p3)
K08A04F 2008 AF4 (arc=11 days, H=19.8 ~371m) from Saint-Barthelemy Obs. (Jan. 19.91-95p8 & 20.96-98p4), Greiner Research Obs. (Jan. 20.19-20p30 & 20.42-43p30), and University Hills Obs. (Jan. 20.38-41p6)
Observations of recently (no longer) risk-listed objects
K08A33N 2008 AN33 (Q=4.419 AU, arc=5 days, H=18.8 ~589m) from the Spacewatch 1.8m telescope (Jan. 20.45-46p3)
K08A33G 2008 AG33 (arc=8 days, H=19.3 ~467m) from Spacewatch 1.8m (Jan. 20.52p2)
K07Y56Q 2007 YQ56 (arc=20 days, H=19.8 ~371m) from Spacewatch 1.8m (Jan. 20.10-11p3)
K07Y02B 2007 YB2 (Q=5.234 AU, arc=33 days, H=18.2 ~776m) from Desert Moon Obs. (Jan. 20.50p5)
Observations of small asteroids (H>22.0)
K08B00E 2008 BE (arc=3 days, H=22.7 ~98m) from the Mt. Lemmon Survey (MLS) (Jan. 20.36p4)
K08B00C 2008 BC (arc=4 days, H=24.2 ~49m) from MLS (Jan. 20.36-37p4)
Observations of other objects
K08A33H 2008 AH33 (i=36.7°, arc=8 days, H=19.3 ~467m) from Spacewatch 1.8m (Jan. 20.50-51p3)
K08A28T 2008 AT28 (arc=10 days, H=18.4 ~708m) from Spacewatch 1.8m (Jan. 20.31-32p3)
K07Y01X 2007 YX1 (Q=4.542 AU, arc=2 opp, H=17.2 ~1.23 km) from Desert Moon Obs. (Jan. 20.08-09p3)
K07Y00K 2007 YK (arc=35 days, H=17.6 ~1.02 km) from Desert Moon Obs. (Jan. 20.47-48p3)
K07U03R 2007 UR3 (arc=2 opp, H=21.2 ~195m) from Spacewatch 1.8m (Jan. 20.15-16p3)
K05T45U 2005 TU45 (arc=3 opp, H=17.1 ~1.29 km) from Greiner Research Obs. (Jan. 20.41-42p25)
K05EM4C 2005 EC224 (arc=4 opp, H=18.1 ~812m) from the Spacewatch 0.9m telescope (Jan. 20.41-45p3)
K05E70K 2005 EK70 (arc=4 opp, H=17.5 ~1.07 km) from LINEAR (Jan. 20.46-50p5)
K04XG4P 2004 XP164 (arc=3 opp, H=17.5 ~1.07 km) from Desert Moon Obs. (Jan. 20.11-12p3)
K03B35T 2003 BT35 (i=57.3°, arc=3 opp, H=18.6 ~645m) from LINEAR (Jan. 20.34-39p5)
K03A18K 2003 AK18 (arc=3 opp, H=19.7 ~389m) from MLS (Jan. 20.46-47p4)
K00C59H 2000 CH59 (arc=3 opp, H=19.9 ~355m) from Balzaretto Obs. (Jan. 19.99-03p4)
J98B10B 1998 BB10 (arc=5 opp, H=20.4 ~282m) from Spacewatch 1.8m (Jan. 20.11-12p3)
H1839 171839 2001 JM1 from Desert Moon Obs. (Jan. 20.15-20p3)
H0502 170502 2003 WM7 from MLS (Jan. 20.08-09p4)
G3902 163902 2003 SW222 from MLS (Jan. 20.15-16p4)
89830 89830 2002 CE from LINEAR (Jan. 20.46-51p5)
35107 35107 1991 VH from LINEAR (Jan. 20.48-52p4)
34613 34613 2000 UR13 from Spacewatch 0.9m (Jan. 20.18-21p3)
04954 4954 Eric (1990 SQ) from LINEAR (Jan. 20.14-19p5)
04503 4503 Cleobulus (1989 WM) from MLS (Jan. 20.48-50p4)
01685 1685 Toro (1948 OA) from LINEAR (Jan. 20.08-13p5)
01036 1036 Ganymed (1924 TD) from Malaga Obs. (Jan. 19.91-93p3)

MPEC 2008-B26 - "00:34 UT" - Observations of Comets

CK07U010 C/2007 U1 (LINEAR) from Hadano Obs. (Dec. 31.62-63p4), Kitami Obs. (Jan. 3.48-51p3), Ageo Obs. (Jan. 14.68-69p3), Petit Jean Mtn. South Obs. (PJMSO) (Jan. 15.28p6), Tucci Obs. (Jan. 19.81-83p3), and Szamotuly-Galowo Obs. (Jan. 19.93-94p3)
PK07T060 P/2007 T6 (Catalina) from Hadano Obs. (Dec. 30.68-69p4), Kitami Obs. (Jan. 11.56-59p3), Montcabre Obs. (Jan. 18.97p3 & 20.01-02p2), MLS (Jan. 19.36-37p8), and Nazaret Obs. (Jan. 19.95-96p3)
CK07T050 C/2007 T5 (Gibbs) from Hadano Obs. (Dec. 30.65-66p4 & Jan. 2.74-75p4), Montcabre Obs. (Jan. 18.92p3), MLS (Jan. 19.21-23p4), and Nazaret Obs. (Jan. 19.99p3)
PK07T020 P/2007 T2 (Kowalski) from Ageo Obs. (Dec. 31.68-69p2), Buchloe Obs. (Jan. 10.98p1), Montcabre Obs. (Jan. 15.02-06p2), and MLS (Jan. 16.30-32p4 & 18.32-34p4)
CK07T010 C/2007 T1 (McNaught) from Castlemaine Obs. (Jan. 11.50-54p3) and North Ryde Obs. (Jan. 15.71-72p2)
CK07S020 C/2007 S2 (Lemmon) from Kitami Obs. (Jan. 11.56-59p3), Atlante Obs. (Jan. 13.92-95p3), LONEOS (Jan. 15.21-29p4), Spacewatch 0.9m (Jan. 15.29-33p3, 19.27-31p3 & 20.23-27p3), and Paus Obs. (Jan. 16.95-97p2)
CK07M020 C/2007 M2 (Catalina) from Skylive Obs. (Jan. 12.11-13p3) and MLS (Jan. 19.46-47p4)
PK07H010 P/2007 H1 (McNaught) from Ageo Obs. (Jan. 1.52p3), La Puebla de Vallbona Obs. (Vallbona Obs.) (Jan. 12.78p3), La Vara Obs. (Jan. 12.79-80p3 & 14.81p1), and LINEAR (Jan. 20.08-13p5)
PK07C020 P/2007 C2 (Catalina) from Hadano Obs. (Jan. 1.66-68p4), Kitami Obs. (Jan. 11.65-66p3), PJMSO (Jan. 15.32-33p5), and LINEAR (Jan. 16.15-20p5)
CK07B020 C/2007 B2 (Skiff) from Kitami Obs. (Jan. 2.74-75p3), Monte Deva Obs. (Jan. 14.05-06p5 & 20.08-09p5), Masquefa Obs. (Jan. 19.10-11p3), and Rodeno Obs. (Jan. 20.08-10p3)
CK06W030 C/2006 W3 (Christensen) from La Vara Obs. (Jan. 12.92-93p3, 13.92p3, 14.90p3 & 18.91-92p3), Monte Deva Obs. (Jan. 14.91p4), PJMSO (Jan. 15.22p6 & 20.16p6), Carmelita Obs. (Jan. 16.83-84p3 & 20.76-77p3), Rodeno Obs. (Jan. 19.89-91p3), Montcabre Obs. (Jan. 19.91p3), and Szamotuly-Galowo Obs. (Jan. 19.98-99p3)
CK06S050 C/2006 S5 (Hill) from Hadano Obs. (Dec. 31.74p4), Kiev Comet Station (Jan. 5.19-20p3 & 6.02-03p12), La Vara Obs. (Jan. 13.95p3 & 14.97p3), Monte Deva Obs. (Jan. 13.98-99p5, 14.96p5 & 20.07p4), Table Mtn. Obs. (Jan. 14.00-01p3), PJMSO (Jan. 14.35-36p5 & 15.31-32p6), Vitebsk Obs. (Jan. 14.93-94p3), LONEOS (Jan. 15.24-29p3), LINEAR (Jan. 16.15-20p5), La Murta Obs. (Jan. 18.79p3 & 19.81p3), Tucci Obs. (Jan. 18.87p4), Iluro Obs. (Jan. 18.96-97p3), Atlante Obs. (Jan. 19.90-92p3), Montcabre Obs. (Jan. 19.93-94p3), Linceo Obs. (Jan. 19.98-00p3), Rodeno Obs. (Jan. 20.06-08p3), and Vicksburg Obs. (Jan. 20.19-21p2)
CK06Q010 C/2006 Q1 (McNaught) from AAAA Buenos Aires Obs. (Dec. 30.09p1, 30.15-18p3 & 30.26p1) and Kambah Obs. (Jan. 15.64p2)
CK06O02F C/2006 OF2 (Broughton) from Nagano Obs. (Jan. 14.39-41p2), La Vara Obs. (Jan. 14.78-79p3), La Murta Obs. (Jan. 19.79-80p3), and Chante-Perdrix Obs. (Jan. 20.74-75p3)
CK06M010 C/2006 M1 (LINEAR) from Ageo Obs. (Jan. 1.55-56p2), Schiaparelli Obs. (Jan. 7.90p1 & 7.95p1), and Vallbona Obs. (Jan. 12.86-87p3)
0195P 195P/Hill from the Catalina Sky Survey (CSS) (Jan. 12.23-25p4) and LONEOS (Jan. 15.12-18p4)
0194P 194P/LINEAR from Ageo Obs. (Jan. 1.66-67p3), Kiev Comet Station (Jan. 5.97-98p3), and Schiaparelli Obs. (Jan. 8.06-10p2)
0191P 191P/McNaught from Table Mtn. Obs. (Jan. 13.80-81p3), La Vara Obs. (Jan. 14.95-96p3), and Ottmarsheim Obs. (Jan. 20.81-82p3)
0187P 187P/LINEAR from Spacewatch 0.9m (Dec. 31.52-54p3 & Jan. 16.51-54p3)
0180P 180P/NEAT from Hadano Obs. (Jan. 1.70p2) and CSS (Jan. 15.32-33p3)
0179P 179P/Jedicke from Vitebsk Obs. (Jan. 14.78p2) and Vicksburg Obs. (Jan. 20.07-11p2)
0173P 173P/Mueller 5 from Spacewatch 0.9m (Jan. 16.15-19p3 & 20.17-21p6)
0156P 156P/Russell-LINEAR from Buchloe Obs. (Jan. 11.00-01p3) and Paus Obs. (Jan. 14.94p1)
0148P 148P/Anderson-LINEAR from Lumezzane Obs. (Nov. 30.77p1) and Chante-Perdrix Obs. (Jan. 20.75-77p3)
0124P 124P/Mrkos from Hadano Obs. (Jan. 1.75-76p3), Ageo Obs. (Jan. 7.74-75p2), Monte Deva Obs. (Jan. 13.99-01p5), and LINEAR (Jan. 20.39-44p5)
0117P 117P/Helin-Roman-Alu 1 from Vallbona Obs. (Jan. 12.81-82p3) and Chante-Perdrix Obs. (Jan. 20.79-81p3)
0116P 116P/Wild 4 from LONEOS (Jan. 12.13-21p4) and Vitebsk Obs. (Jan. 14.81p1)
0110P 110P/Hartley 3 from Hadano Obs. (Jan. 2.57p4), Montseny Obs. (Jan. 12.90-91p3), Vega del Thader Obs. (Jan. 12.94-95p5 & 14.90p12), Monte Deva Obs. (Jan. 13.94p5 & 14.94p5), Vitebsk Obs. (Jan. 14.85-86p3), Murcia Obs. (Jan. 14.89p3), Montcabre Obs. (Jan. 14.92p3 & 16.93-94p3), PJMSO (Jan. 15.20-21p5 & 20.17-18p4), Balzaretto Obs. (Jan. 19.80p2), and Ottmarsheim Obs. (Jan. 20.86-87p3)
0093P 93P/Lovas 1 from Hadano Obs. (Jan. 2.49p4), Kiev Comet Station (Jan. 5.83-85p10), Vallbona Obs. (Jan. 12.77p3), Montseny Obs. (Jan. 12.84-86p4), La Vara Obs. (Jan. 12.86-87p3, 13.89-90p3, 14.83p3, 16.90p3 & 18.83-84p3), Table Mtn. Obs. (Jan. 13.83p2), Monte Deva Obs. (Jan. 13.89-90p5 & 14.88p5), Guadarrama Obs. (Jan. 14.81-82p3), San Vito Obs. (Jan. 18.74-75p4), Carmelita Obs. (Jan. 18.75p3), Rodeno Obs. (Jan. 19.82p3), Greiner Research Obs. (Jan. 20.18-21p9), and Murcia Obs. (Jan. 20.86p3)
0074P 74P/Smirnova-Chernykh from Hadano Obs. (Jan. 2.59-60p3), Table Mtn. Obs. (Jan. 13.98p3), and Junk Bond Obs. (Jan. 16.21-29p3)
0070P 70P/Kojima from CSS (Jan. 15.43-45p4) and LINEAR (Jan. 18.40-45p5)
0065P 65P/Gunn from Hadano Obs. (Dec. 31.77-78p3), Ageo Obs. (Jan. 7.70p3), Monte Deva Obs. (Jan. 14.01p3), Vitebsk Obs. (Jan. 14.98-99p3), Paus Obs. (Jan. 16.94p1), MLS (Jan. 18.32-34p4 & 19.23-25p4), Montcabre Obs. (Jan. 18.94p3), Masquefa Obs. (Jan. 19.05-07p3), Atlante Obs. (Jan. 19.93-96p3), and Nazaret Obs. (Jan. 20.01-02p3)
0050P 50P/Arend from Hadano Obs. (Jan. 2.55-56p3), Vallbona Obs. (Jan. 12.82-83p3), Table Mtn. Obs. (Jan. 13.93-94p3), La Vara Obs. (Jan. 14.86p3 & 16.92p1), Szamotuly-Galowo Obs. (Jan. 19.90p3), PJMSO (Jan. 20.11-12p6), Greiner Research Obs. (Jan. 20.18-21p4), Ottmarsheim Obs. (Jan. 20.83-85p3), and Murcia Obs. (Jan. 20.87p3)
0046P 46P/Wirtanen from Kiev Comet Station (Jan. 12.65-68p9), Vallbona Obs. (Jan. 12.76-77p3), La Vara Obs. (Jan. 12.83p3, 13.85-86p3, 14.80p3 & 18.82p3), Monte Deva Obs. (Jan. 13.87-88p5, 14.85-86p5 & 19.88-89p4), Moriyama Obs. (Jan. 14.40-41p2), Szamotuly-Galowo Obs. (Jan. 14.72p2), Vega del Thader Obs. (Jan. 14.79p15), La Murta Obs. (Jan. 18.80-81p3 & 19.80p3), and Rodeno Obs. (Jan. 19.81p3)
0029P 29P/Schwassmann-Wachmann 1 from Remanzacco Obs. (Jan. 2.91p1), Nagano Obs. (Jan. 10.65p3), Vega del Thader Obs. (Jan. 12.91-92p5 & 14.91-92p8), La Vara Obs. (Jan. 12.95-02p15, 13.93-94p3, 14.91p3, 16.95p2 & 18.90p3), Atlante Obs. (Jan. 13.88-90p3), Monte Deva Obs. (Jan. 13.93p5, 14.95p5 & 16.96p5), Table Mtn. Obs. (Jan. 13.99-00p2), PJMSO (Jan. 14.27-28p6 & 15.26-27p7), Geisei Obs. (Jan. 14.48p1), Szamotuly-Galowo Obs. (Jan. 14.73-74p2), Guadarrama Obs. (Jan. 14.85p1), Vitebsk Obs. (Jan. 14.87-88p3), Murcia Obs. (Jan. 14.88p3), Paus Obs. (Jan. 14.88p1), Montcabre Obs. (Jan. 14.89-90p3, 16.90-91p3 & 18.88-89p3), Montana Blanca Obs. (Jan. 15.94-95p2), Hamamatsu-Yuto Obs. (Jan. 16.47-48p4), Chante-Perdrix Obs. (Jan. 16.79p3), Carmelita Obs. (Jan. 16.85-87p3 & 18.84-86p3), La Murta Obs. (Jan. 18.78p3), Mataro Obs. (Jan. 18.83-86p2 & 18.96-97p2), Sant Pere Obs. (Jan. 18.91-93p3), Iluro Obs. (Jan. 18.95p3), and Balzaretto Obs. (Jan. 19.82-83p4)
0017P 17P/Holmes from Hadano Obs. (Dec. 31.59p4), Kiev Comet Station (Jan. 5.01p8 & 5.88p11), La Vara Obs. (Jan. 12.90-91p3, 13.91p3, 14.87p3, 16.94p3 & 18.93-94p3), Table Mtn. Obs. (Jan. 13.88p1 & 13.95-96p3), Monte Deva Obs. (Jan. 13.92p5 & 14.89p5), PJMSO (Jan. 14.23p2, 15.21-22p5 & 20.12-13p6), Moriyama Obs. (Jan. 14.50p2), Vega del Thader Obs. (Jan. 14.88-89p11), Murcia Obs. (Jan. 14.93p3 & 20.88p3), Hamamatsu-Yuto Obs. (Jan. 16.39-40p3), Chante-Perdrix Obs. (Jan. 16.76-77p3 & 18.82p3), La Murta Obs. (Jan. 18.81-82p3), Montcabre Obs. (Jan. 18.86p3), San Vito Obs. (Jan. 18.90-91p2), Rodeno Obs. (Jan. 19.83-85p3), Szamotuly-Galowo Obs. (Jan. 19.91-92p3), Nazaret Obs. (Jan. 19.92-94p3), and Guadarrama Obs. (Jan. 19.93p3)
0010P 10P/Tempel 2 from MLS (Jan. 10.40-42p4) and Spacewatch 0.9m (Jan. 13.44-48p3)
0008P 8P/Tuttle from Ageo Obs. (Jan. 1.63p3, 4.53p3 & 13.48p3), Vega del Thader Obs. (Jan. 1.91p16, 12.77-78p19 & 14.80-81p14), Hadano Obs. (Jan. 2.46-47p3), Vallbona Obs. (Jan. 12.76p3), Kiev Comet Station (Jan. 12.83p5), La Vara Obs. (Jan. 12.89p3, 13.86p3 & 14.79p3), Monte Deva Obs. (Jan. 13.88-89p5 & 14.86-87p5), Moriyama Obs. (Jan. 14.48p2), Szamotuly-Galowo Obs. (Jan. 14.72-73p5), Linceo Obs. (Jan. 14.78-80p3 & 20.77-79p3), Chante-Perdrix Obs. (Jan. 16.77-78p3 & 19.75-76p3), and La Murta Obs. (Jan. 18.77p3 & 19.79p3)
0007P 7P/Pons-Winnecke from Buchloe Obs. (Jan. 11.04p3) and Montcabre Obs. (Jan. 19.13-15p2 & 19.19p1)

MPEC 2008-B25 - "00:15 UT" - Comet C/2008 A1 (McNaught)

CK08A010 C/2008 A1 (McNaught) (i=82.6°, q=1.076 AU, TP=2008 Sept. 29.475 TT) from AAAA Buenos Aires Obs. (Jan. 12.10-16p3 & 13.08-10p3), Geisei Obs. (Jan. 12.58-65p3 & 16.62p1), Castlemaine Obs. (Jan. 14.46-50p4), RAS Obs. Moorook (Jan. 14.48-49p2), North Ryde Obs. (Jan. 15.44p1 & 15.48p1), Kambah Obs. (Jan. 15.59-60p2), and Table Mtn. Obs. (Jan. 16.28-30p4)

MPEC 2008-B24 - "00:12 UT" - Comet C/2007 Y1 (LINEAR)

CK07Y010 C/2007 Y1 (LINEAR) (i=110.2°, q=3.341 AU, TP=2008 Mar. 19.2837 TT) from Hadano Obs. (Dec. 30.75-77p3), North Ryde Obs. (Jan. 15.60-64p2), Paus Obs. (Jan. 16.00p1), CSS (Jan. 18.33-35p4), Montcabre Obs. (Jan. 19.02-03p3), Malaga Obs. (Jan. 19.99-00p3), and LINEAR (Jan. 20.34-39p4)

MPEC 2008-B23 - "00:08 UT" - Comet C/2007 W3 (LINEAR)

CK07W030 C/2007 W3 (LINEAR) (i=78.7°, q=1.776 AU, Q=31518.699 AU, TP=2008 June 2.81555 TT) from Hadano Obs. (Dec. 31.48-50p3), Kiev Comet Station (Jan. 12.86-88p6), and Table Mtn. Obs. (Jan. 16.15-17p4)

MPEC 2008-B22 - "00:01 UT" - Comet C/2007 W1 (Boattini)

CK07W010 C/2007 W1 (Boattini) (q=0.848 AU, Q=5697.935 AU, TP=2008 June 24.83201 TT) from Hadano Obs. (Jan. 2.81-83p4), Ageo Obs. (Jan. 13.71-72p2 & 14.72-73p3), North Ryde Obs. (Jan. 15.67-70p2), Masquefa Obs. (Jan. 19.13p3), and Atlante Obs. (Jan. 20.10-11p3)

Observers on 21 January '08

A total of 61 observing facilities appear in today's MPECs.

Code	Observer / observatory
`834`	AAAA Buenos Aires Obs. in Argentina, 2 in MPECs 2008-B25 & 2008-B26 -- C/2008 A1, C/2006 Q1
`349`	Ageo Obs. in Japan, 9 in MPECs 2008-B22 & 2008-B26 -- C/2007 W1, C/2007 U1, P/2007 T2, P/2007 H1, C/2006 M1, 194P, 124P, 65P, 8P
`J51`	Atlante Obs. in the Canary Islands, 5 in MPECs 2008-B22 & 2008-B26 -- C/2007 W1, C/2007 S2, C/2006 S5, 65P, 29P
`A81`	Balzaretto Obs. in Italy, 3 in MPECs 2008-B26 & 2008-B27 -- 2000 CH59, 110P, 29P
`215`	Buchloe Obs. in Germany, 3 in MPEC 2008-B26 -- P/2007 T2, 156P, 7P
`B20`	Carmelita Obs. in Spain, 3 in MPEC 2008-B26 -- C/2006 W3, 93P, 29P
`E00`	Castlemaine Obs. in Victoria, 2 in MPECs 2008-B25 & 2008-B26 -- C/2008 A1, C/2007 T1
`703`	Catalina Sky Survey (CSS) in Arizona, 4 in MPECs 2008-B24 & 2008-B26 -- C/2007 Y1, 195P, 180P, 70P
`A77`	Chante-Perdrix Obs. in France, 6 in MPEC 2008-B26 -- C/2006 OF2, 148P, 117P, 29P, 17P, 8P
`448`	Desert Moon Obs. in New Mexico, 5 in MPEC 2008-B27 -- 2007 YX1, 2007 YK, 2007 YB2, 2004 XP164, 171839
`372`	Geisei Obs. in Japan, 2 in MPECs 2008-B25 & 2008-B26 -- C/2008 A1, 29P
`H51`	Greiner Research Obs. in Wisconsin, 4 in MPECs 2008-B26 & 2008-B27 -- 2008 AF4, 2005 TU45, 93P, 50P
`458`	Guadarrama Obs. in Spain, 3 in MPEC 2008-B26 -- 93P, 29P, 17P
`355`	Hadano Obs. in Japan, 17 in MPECs 2008-B22, 2008-B23, 2008-B24 & 2008-B26 -- C/2007 Y1, C/2007 W3, C/2007 W1, C/2007 U1, P/2007 T6, C/2007 T5, P/2007 C2, C/2006 S5, 180P, 124P, 110P, 93P, 74P, 65P, 50P, 17P, 8P
`379`	Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2008-B26 -- 29P, 17P
`B19`	Iluro Obs. in Spain, 2 in MPEC 2008-B26 -- C/2006 S5, 29P
`701`	Junk Bond Obs. in Arizona, 1 in MPEC 2008-B26 -- 74P
`415`	Kambah Obs. in the Australian Capital Territory, 2 in MPECs 2008-B25 & 2008-B26 -- C/2008 A1, C/2006 Q1
`585`	Kiev Comet Station in the Ukraine, 7 in MPECs 2008-B23 & 2008-B26 -- C/2007 W3, C/2006 S5, 194P, 93P, 46P, 17P, 8P
`400`	Kitami Obs. in Japan, 5 in MPEC 2008-B26 -- C/2007 U1, P/2007 T6, C/2007 S2, P/2007 C2, C/2007 B2
`704`	LINEAR in New Mexico, 12 in MPECs 2008-B24, 2008-B26 & 2008-B27 -- C/2007 Y1, P/2007 H1, P/2007 C2, C/2006 S5, 2005 EK70, 2003 BT35, 89830, 35107, 4954, 1685, 124P, 70P
`699`	LONEOS in Arizona, 4 in MPEC 2008-B26 -- C/2007 S2, C/2006 S5, 195P, 116P
`J76`	La Murta Obs. in Spain, 6 in MPEC 2008-B26 -- C/2006 S5, C/2006 OF2, 46P, 29P, 17P, 8P
`J67`	La Puebla de Vallbona Obs. (Vallbona Obs.) in Spain, 7 in MPEC 2008-B26 -- P/2007 H1, C/2006 M1, 117P, 93P, 50P, 46P, 8P
`J38`	La Vara Obs. in Spain, 11 in MPEC 2008-B26 -- P/2007 H1, C/2006 W3, C/2006 S5, C/2006 OF2, 191P, 93P, 50P, 46P, 29P, 17P, 8P
`J59`	Linceo Obs. in Spain, 2 in MPEC 2008-B26 -- C/2006 S5, 8P
`130`	Lumezzane Obs. in Italy, 1 in MPEC 2008-B26 -- 148P
`H01`	Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2008-B27 -- 2008 AK33
`J40`	Malaga Obs. in Spain, 2 in MPECs 2008-B24 & 2008-B27 -- C/2007 Y1, 1036
`232`	Masquefa Obs. in Spain, 3 in MPECs 2008-B22 & 2008-B26 -- C/2007 W1, C/2007 B2, 65P
`A06`	Mataro Obs. in Spain, 1 in MPEC 2008-B26 -- 29P
`J46`	Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2008-B26 -- 29P
`213`	Montcabre Obs. in Spain, 11 in MPECs 2008-B24 & 2008-B26 -- C/2007 Y1, P/2007 T6, C/2007 T5, P/2007 T2, C/2006 W3, C/2006 S5, 110P, 65P, 29P, 17P, 7P
`945`	Monte Deva Obs. in Spain, 11 in MPEC 2008-B26 -- C/2007 B2, C/2006 W3, C/2006 S5, 124P, 110P, 93P, 65P, 46P, 29P, 17P, 8P
`B06`	Montseny Obs., 2 in MPEC 2008-B26 -- 110P, 93P
`900`	Moriyama Obs. in Japan, 3 in MPEC 2008-B26 -- 46P, 17P, 8P
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 12 in MPECs 2008-B26 & 2008-B27 -- 2008 BE, 2008 BC, P/2007 T6, C/2007 T5, P/2007 T2, C/2007 M2, 2003 AK18, 170502, 163902, 4503, 65P, 10P
`J78`	Murcia Obs. in Spain, 5 in MPEC 2008-B26 -- 110P, 93P, 50P, 29P, 17P
`D81`	Nagano Obs., 2 in MPEC 2008-B26 -- C/2006 OF2, 29P
`J47`	Nazaret Obs. in Spain, 4 in MPEC 2008-B26 -- P/2007 T6, C/2007 T5, 65P, 17P
`423`	North Ryde Obs. in New South Wales, 4 in MPECs 2008-B22, 2008-B24, 2008-B25 & 2008-B26 -- C/2008 A1, C/2007 Y1, C/2007 W1, C/2007 T1
`224`	Ottmarsheim Obs. in France, 3 in MPEC 2008-B26 -- 191P, 110P, 50P
`B49`	Paus Obs. in Spain, 5 in MPECs 2008-B24 & 2008-B26 -- C/2007 Y1, C/2007 S2, 156P, 65P, 29P
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPEC 2008-B26 -- C/2007 U1, P/2007 C2, C/2006 W3, C/2006 S5, 110P, 50P, 29P, 17P
`D90`	RAS Obs. Moorook, 1 in MPEC 2008-B25 -- C/2008 A1
`473`	Remanzacco Obs. in Italy, 1 in MPEC 2008-B26 -- 29P
`939`	Rodeno Obs. in Spain, 6 in MPEC 2008-B26 -- C/2007 B2, C/2006 W3, C/2006 S5, 93P, 46P, 17P
`B04`	Saint-Barthelemy Obs. in Italy, 1 in MPEC 2008-B27 -- 2008 AF4
`233`	San Vito Obs. in Italy, 2 in MPEC 2008-B26 -- 93P, 17P
`B56`	Sant Pere Obs., 1 in MPEC 2008-B26 -- 29P
`204`	Schiaparelli Obs. in Italy, 2 in MPEC 2008-B26 -- C/2006 M1, 194P
`B40`	Skylive Obs. in Italy, 1 in MPEC 2008-B26 -- C/2007 M2
`691`	Spacewatch 0.9m telescope in Arizona, 6 in MPECs 2008-B26 & 2008-B27 -- C/2007 S2, 2005 EC224, 34613, 187P, 173P, 10P
`291`	Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2008-B27 -- 2008 AT28, 2008 AN33, 2008 AH33, 2008 AG33, 2007 YQ56, 2007 UR3, 1998 BB10
`B30`	Szamotuly-Galowo Obs. in Poland, 7 in MPEC 2008-B26 -- C/2007 U1, C/2006 W3, 50P, 46P, 29P, 17P, 8P
`673`	Table Mtn. Obs. in southern California, 9 in MPECs 2008-B23, 2008-B25 & 2008-B26 -- C/2008 A1, C/2007 W3, C/2006 S5, 191P, 93P, 74P, 50P, 29P, 17P
`J35`	Tucci Obs. in Spain, 2 in MPEC 2008-B26 -- C/2007 U1, C/2006 S5
`G72`	University Hills Obs. in southern California, 1 in MPEC 2008-B27 -- 2008 AF4
`J70`	Vega del Thader Obs. in Spain, 5 in MPEC 2008-B26 -- 110P, 46P, 29P, 17P, 8P
`H47`	Vicksburg Obs. in Mississippi, 2 in MPEC 2008-B26 -- C/2006 S5, 179P
`B42`	Vitebsk Obs. in Belarus, 6 in MPEC 2008-B26 -- C/2006 S5, 179P, 116P, 110P, 65P, 29P

Impact Risk Monitoring on 21 January '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2354 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of 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 AK33	JPL Sentry	1522	R E M O V E D						JPL: Risk listing removed at 1043 UTC.
2008 AK33	NEODyS	1522	R E M O V E D

2008 AF4	JPL Sentry	1522	2088-2099	25	1.9e-05	-2.43	-2.70	0	JPL: "Analysis based on 197 observations spanning 10.580 days (2008-Jan-10.39652 to 2008-Jan-20.97632)." Diameter approximately 0.380 km. from mean, weighted H=19.8.
2008 AF4	NEODyS	1522	2083-2090	10	1.11e-05	-2.65	-2.69	0	NEODyS: "Based on 200 optical observations (of which 3 are rejected as outliers) from 2008/01/10.397 to 2008/01/20.977."

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 21 January '08

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

1522	Noted that JPL Sentry has updated its 2008 AF4 risk assessment - see above Noted that NEODyS has updated its 2008 AF4 risk assessment - see above Noted that JPL Sentry has removed 2008 AK33 as an impact risk - see above Noted that NEODyS has removed 2008 AK33 as an impact risk - see above Grabbed MPEC 2008-B27 - Daily Orbit Update - see above
0101	Grabbed MPEC 2008-B26 - Observations of Comets - see above
0024	Grabbed MPEC 2008-B22 - Comet C/2007 W1 (Boattini) - see above Grabbed MPEC 2008-B23 - Comet C/2007 W3 (LINEAR) - see above Grabbed MPEC 2008-B24 - Comet C/2007 Y1 (LINEAR) - see above Grabbed MPEC 2008-B25 - Comet C/2008 A1 (McNaught) - see above

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