2008-05-03 Tracking News

Contents on 3 May '08

IAU Minor Planet Center
- NEOCP Activity -- six listings: 6 updated
- New MPECs -- eleven MPECs
Observers -- 74 observing facilities
Impact Risk Monitoring -- eight 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 3 May '08

The MPC's NEO Confirmation Page has 6 listings: 6 updated

When last checked at 2247 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had six updated listings. Of these, five were "one nighters." So far The Tracking News has counted a total of thirteen 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 3 May '08

Minor Planet Electronic Circulars

As of last check at 2247 UTC, there have been eleven MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-J17 time-stamped "03:34 UT" - Comet C/2008 J1 (Boattini) - see below
MPEC 2008-J18 time-stamped "06:07 UT" - Daily Orbit Update - see below
MPEC 2008-J19 time-stamped "12:56 UT" - 2008 JN - see below
MPEC 2008-J20 time-stamped "12:58 UT" - 2008 JO - see below
MPEC 2008-J21 time-stamped "13:02 UT" - 2008 JP - see below
MPEC 2008-J22 time-stamped "13:05 UT" - 2008 JQ - see below
MPEC 2008-J23 time-stamped "15:05 UT" - Comet 6P/D'Arrest - see below
MPEC 2008-J24 time-stamped "15:21 UT" - Comet C/2008 E3 (Garradd) - see below
MPEC 2008-J25 time-stamped "15:25 UT" - Comet C/2008 G1 (Gibbs) - see below
MPEC 2008-J26 time-stamped "15:30 UT" - Comet C/2008 H1 (LINEAR) - see below
MPEC 2008-J27 time-stamped "15:44 UT" - Observations of Comets

MPEC 2008-J27 - "15:44 UT" - Observations of Comets

PK08G020 P/2008 G2 from the Catalina Sky Survey (CSS) (April 15.35-37p4), Skalnate Pleso Obs. (April 24.93-96p2 & 28.93-95p3), Nazaret Obs. (April 27.12-15p3), Buchloe Obs. (April 29.87p3), and Paus Obs. (April 29.91p1)
CK08C010 C/2008 C1 (Chen-Gao) from Szeged Obs. (Feb. 20.85-86p2 & 28.79-80p3), Moletai Obs. (April 25.85p3 & 26.81-82p3), and Malaga Obs. (April 27.87-89p4)
CK08A010 C/2008 A1 (McNaught) from Auckland Obs. (April 23.34p3) and North Ryde Obs. (April 26.38p2)
CK07W010 C/2007 W1 (Boattini) from Urseanu Obs. (April 7.89-90p4), El Leoncito Obs. (April 23.07-08p3), Monte Deva Obs. (April 26.01-02p3, 29.97p4 & 30.97-98p4), Szeged Obs. (April 26.85-86p2), Rodeno Obs. (April 26.90-91p3), Mt. Matajur Obs. (April 27.85p2), La Murta Obs. (April 27.89p3), Chante-Perdrix Obs. (April 27.91p3, 29.83-84p3, 30.84-85p3 & May 2.83-84p3), Moriyama Obs. (April 28.51-52p2), Ageo Obs. (April 29.45p3), Yatsuka Obs. (April 29.47-48p3), Carmelita Obs. (April 29.90p3 & May 1.82p3), Linceo Obs. (May 1.85-86p3), and San Vito Obs. (May 2.81p3)
PK07T060 P/2007 T6 (Catalina) from Buchloe Obs. (April 7.91p1) and Nira Obs. (April 27.91-96p3)
CK07T050 C/2007 T5 (Gibbs) from the Mt. Lemmon Survey (MLS) (April 26.17-19p4) and Modra Obs. (April 27.83p2)
CK07S020 C/2007 S2 (Lemmon) from LINEAR (April 28.14-19p5) and Modra Obs. (April 28.83-84p2)
CK07M030 C/2007 M3 (LINEAR) from Bedoin Obs. (May 1.99-00p3)
CK07M020 C/2007 M2 (Catalina) from Szeged Obs. (April 26.93-94p2), LINEAR (April 29.24-28p5), Farm Cove Obs. (April 30.37-38p3), Calarreona Obs. (April 30.86p3), Chante-Perdrix Obs. (April 30.87p3), Malaga Obs. (April 30.96-98p4), Masquefa Obs. (May 1.82-84p3), Bedoin Obs. (May 1.90-91p3), and Moriyama Obs. (May 2.62-63p2)
CK07G010 C/2007 G1 (LINEAR) from Ageo Obs. (April 22.77-78p3), Monte Deva Obs. (April 26.04-05p4, May 1.03p5 & 3.06-07p3), Rodeno Obs. (April 27.03-04p3), Moriyama Obs. (April 28.73-74p2 & May 2.73-74p2), Siegen Obs. (May 1.01p3), LINEAR (May 1.40-44p5), Bedoin Obs. (May 2.05-06p3), and Iluro Obs. (May 2.11p3)
CK07D010 C/2007 D1 (LINEAR) from Chante-Perdrix Obs. (April 30.86p1) and Bedoin Obs. (May 1.88-90p3)
CK07B020 C/2007 B2 (Skiff) from El Leoncito Obs. (April 23.13-15p3 & 24.06-08p3), Nagano Obs. (April 25.69-70p4), Remanzacco Obs. (April 25.87p1), Vitebsk Obs. (April 25.88-89p5), La Vara Obs. (April 25.92-93p3), Szeged Obs. (April 26.87-88p2), Montseny Obs. (April 26.92-94p8), Corbera Obs. (April 26.96-97p6), Rodeno Obs. (April 26.00-01p3), RAS Obs. Mayhill (April 27.16p1 & 28.24p1), La Murta Obs. (April 27.89-90p3), Moriyama Obs. (April 28.60-62p2 & May 2.63-64p2), LINEAR (April 29.25-29p5), Iluro Obs. (April 29.90-91p3), Monte Deva Obs. (April 29.95-96p5 & 30.98-99p5), Farm Cove Obs. (April 30.33p3), Calarreona Obs. (April 30.87p3), Balzaretto Obs. (April 30.91-93p4), Posadas Obs. (April 30.97-99p3), Linceo Obs. (May 1.87-88p3), Carmelita Obs. (May 1.88-89p3), Bedoin Obs. (May 1.90-91p3), and Masquefa Obs. (May 1.92-93p3)
CK06W030 C/2006 W3 (Christensen) from Szeged Obs. (Feb. 20.90-91p3) and Moriyama Obs. (April 20.48p2)
PK06U050 P/2006 U5 (Christensen) from MLS (April 14.36-38p4 & 30.26-28p4)
CK06S050 C/2006 S5 (Hill) from Szeged Obs. (Feb. 28.84-85p2), LINEAR (April 27.15-19p5), La Murta Obs. (April 27.89p3), and Masquefa Obs. (May 1.89-90p3)
CK06Q010 C/2006 Q1 (McNaught) from El Leoncito Obs. (April 23.05-06p3), Moriyama Obs. (April 28.50p2), and Yatsuka Obs. (April 29.46-47p3)
CK06O02F C/2006 OF2 (Broughton) from Reedy Creek Obs. (April 25.80-81p3 & 27.80-81p3)
PK05SL6B P/2005 SB216 (LONEOS) from LINEAR (May 1.19-24p5) and Bedoin Obs. (May 1.84p2)
CK05L030 C/2005 L3 (McNaught) from Ageo Obs. (April 21.71p3), Nagano Obs. (April 25.73p4), Vitebsk Obs. (April 25.93-94p6 & 27.95p6), La Vara Obs. (April 25.97p3), Monte Deva Obs. (April 26.03-04p5, 29.98-99p5, 30.00p5 & May 3.05-06p5), Szeged Obs. (April 26.96p2), Rodeno Obs. (April 27.01-02p3), Paus Obs. (April 27.02-05p18), Moriyama Obs. (April 28.67-68p2 & May 2.69-70p2), Yatsuka Obs. (April 29.53-54p3), Malaga Obs. (April 30.00-03p4), Masquefa Obs. (May 1.06p3), Iluro Obs. (May 1.06-07p3 & 2.06p3), Bedoin Obs. (May 2.03p3), and CSS (May 3.38-40p4)
CK02V94Q C/2002 VQ94 (LINEAR) from Ametlla del Valles Obs. (April 26.96-97p4, 29.85-88p5, 30.86-87p2, 30.96p1, May 1.86-87p2 & 1.93-96p4), Paus Obs. (April 29.85-86p2), Nazaret Obs. (April 30.04-06p3), and Bedoin Obs. (May 1.94-96p2)
0197P 197P/LINEAR from Vega del Thader Obs. (April 13.10p3), Moriyama Obs. (April 28.79p2), and LINEAR (May 2.41-45p4)
0187P 187P/LINEAR from Vitebsk Obs. (April 26.88-89p3), the Spacewatch 0.9m telescope (April 27.21-24p3, 29.20-24p3 & May 2.20-24p3), and LINEAR (May 2.30-34p4)
0186P 186P/Garradd from North Ryde Obs. (April 11.54-57p2 & 26.59p1)
0183P 183P/Korlevic-Juric from Schiaparelli Obs. (April 3.93p1 & 4.01p1) and Bedoin Obs. (May 1.87-89p2)
0180P 180P/NEAT from Vitebsk Obs. (April 26.85-86p4), Moriyama Obs. (April 28.58-59p2), Masquefa Obs. (April 30.90-92p3), and Bedoin Obs. (May 1.87-88p3)
0172P 172P/Yeung from CSS (April 26.19-21p4), LINEAR (May 1.20-24p5), and Bedoin Obs. (May 1.84-86p3)
0158P 158P/Kowal-LINEAR from MLS (April 24.28-30p4 & May 3.30-32p4), Nazaret Obs. (April 26.93-97p3), and Bedoin Obs. (May 1.94-95p3)
0128P 128P/Shoemaker-Holt 1 from LINEAR (March 28.19-22p3) and MLS (April 28.13-14p4)
0124P 124P/Mrkos from Guadarrama Obs. (April 25.90p2), Szeged Obs. (April 26.90-91p3), Montseny Obs. (April 26.99p2), LINEAR (April 28.20-24p5), Bedoin Obs. (May 1.83-84p3), and Mt. Tuffley Obs. (May 1.90-91p3)
0079P 79P/du Toit-Hartley from Szeged Obs. (April 26.89p2) and LINEAR (April 28.14-19p5)
0070P 70P/Kojima from Ageo Obs. (April 4.71p3 & 14.72-73p3), La Canada Obs. (April 4.85-89p3), Vitebsk Obs. (April 25.86-87p2), Chante-Perdrix Obs. (April 27.91-92p2), Masquefa Obs. (April 30.95-97p2), Posadas Obs. (May 1.00-03p3), and Bedoin Obs. (May 1.92-93p3)
0068P 68P/Klemola from Nazaret Obs. (April 13.07-11p10 & 27.01-02p3), Vitebsk Obs. (April 25.97-01p3), Spacewatch 0.9m (April 28.44-48p3), and LINEAR (May 1.36-39p3)
0065P 65P/Gunn from LINEAR (April 30.14-18p4) and Posadas Obs. (April 30.92-95p3)
0057P 57P/duToit-Neujmin-Delporte from MLS (April 15.39-41p4 & May 3.27-29p4)
0046P 46P/Wirtanen from Szeged Obs. (Feb. 28.81p3), Moletai Obs. (April 24.84-85p5), Rodeno Obs. (April 26.91-92p3), LINEAR (April 27.14-18p5 & May 1.14-18p3), Stammersdorf Obs. (April 27.82-85p3), La Murta Obs. (April 27.88p3), Montcabre Obs. (April 29.87p2), Posadas Obs. (April 30.90-91p3), Malaga Obs. (April 30.90-93p4), and Masquefa Obs. (May 1.88p3)
0029P 29P/Schwassmann-Wachmann 1 from Szeged Obs. (Feb. 20.88-89p3), Masquefa Obs. (April 26.85-87p3 & May 1.86p3), and La Murta Obs. (April 27.86-87p3 & May 1.86-87p3)
0026P 26P/Grigg-Skjellerup from Ageo Obs. (April 1.80p2), Vitebsk Obs. (April 27.99-00p3), and Montcabre Obs. (May 1.05-07p3)
0017P 17P/Holmes from Szeged Obs. (Feb. 28.82p2), La Vara Obs. (April 25.90p1), Masquefa Obs. (April 26.82-83p3), and La Murta Obs. (April 27.84-85p3 & May 1.85-86p3)
0015P 15P/Finlay from RAS Obs. Moorook (April 27.79-80p2 & 28.79-80p2)
0007P 7P/Pons-Winnecke from Vitebsk Obs. (April 25.84-85p3) and Nazaret Obs. (April 26.88-90p3)

MPEC 2008-J26 - "15:30 UT" - Comet C/2008 H1 (LINEAR)

CK08H010 C/2008 H1 (LINEAR) (i=75.5°, q=2.757 AU, Q=89.802 AU, TP=2008 Mar. 16.598 TT) from Iluro Obs. (April 26.04-09p3 & May 2.00-03p3), Malaga Obs. (April 26.09p1, 29.87p1 & 29.91-92p2), Vitebsk Obs. (April 26.91-92p3), Eschenberg Obs. (April 26.96-97p4), Moriyama Obs. (April 28.64-65p2 & May 2.66-67p2), Buchloe Obs. (April 29.88p3), Montcabre Obs. (April 29.90-91p3), Posadas Obs. (May 1.06p3), and Bedoin Obs. (May 2.01-02p3)

MPEC 2008-J25 - "15:25 UT" - Comet C/2008 G1 (Gibbs)

CK08G010 C/2008 G1 (Gibbs) (i=73.1°, q=3.997 AU, TP=2009 Jan. 11.378 TT) from CSS (April 13.36-37p4), MLS (April 17.38-39p4 & May 1.33-35p4), Skalnate Pleso Obs. (April 24.89-92p3 & 28.89-91p4), Remanzacco Obs. (April 26.85p2), Nazaret Obs. (April 27.19-20p3), Buchloe Obs. (April 29.87-88p3), Cordell-Lorenz Obs. (April 30.32-34p2), and Bedoin Obs. (May 1.98-00p3)

MPEC 2008-J24 - "15:21 UT" - Comet C/2008 E3 (Garradd)

CK08E030 C/2008 E3 (Garradd) (i=105.1°, q=5.532 AU, TP=2008 Aug. 1.2312 TT) from North Ryde Obs. (April 26.63-67p2, 28.59-61p2, 29.59-61p2 & May 2.62-64p2)

MPEC 2008-J23 - "15:05 UT" - Comet 6P/D'Arrest

0006P 6P/d'Arrest (q=1.354 AU, Q=5.638 AU, TP=2008 Aug. 14.95983 TT) from Lowell Obs. Anderson Mesa Station (April 26.39-40p4) and Kachina Obs. (April 29.37-40p2 & 30.38-43p3)

MPEC 2008-J22 - "13:05 UT" - 2008 JQ

K08J00Q 2008 JQ (risk-listed, Earth MOID=2.4 LD, H=25.9 ~22m) was discovered at 0713 UT on 2 May by LINEAR, which observed it at May 2.30-33p4. The discovery was confirmed by Great Shefford Obs. (May 2.96p3), Remanzacco Obs. (May 2.00p3), and Grasslands Obs. (May 3.37p3).

MPEC 2008-J21 - "13:02 UT" - 2008 JP

K08J00P 2008 JP (risk-listed, H=21.9 ~141m) was discovered at 0457 UT on 2 May by MLS, which observed it at May 2.21-23p4, 2.28-29p4, and 3.23-24p4.

MPEC 2008-J20 - "12:58 UT" - 2008 JO

K08J00O 2008 JO (H=18.5 ~676m) was discovered at 0312 UT on 2 May by CSS, which observed it at May 2.13-20p8. The discovery was confirmed by Farra d'Isonzo Obs. (May 2.81-84p3), Great Shefford Obs. (May 2.87-88p3), the Spacewatch 1.8m telescope (May 3.15p3), MLS (May 3.15-17p4), and Grasslands Obs. (May 3.16-17p3).

MPEC 2008-J19 - "12:56 UT" - 2008 JN

K08J00N 2008 JN (q=0.198 AU, H=20.7 ~245m) was discovered at 0717 UT on 1 May by LINEAR, which observed it at May 1.30-35p5. The discovery was confirmed by Remanzacco Obs. (May 2.90-91p2), Great Shefford Obs. (May 2.91-92p3), Guidestar Obs. (May 2.98-00p3), MLS (May 3.31-33p4), Grasslands Obs. (May 3.36-37p3), Magdalena Ridge Obs. (MRO) (May 3.37-38p3), and Spacewatch 1.8m (May 3.42-44p3).

<< DOU on 3 May '08 >> MPEC 2008-J18 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K08H38C 2008 HC38 (small asteroid, arc=2 days, H=26.1 ~20m) from LINEAR (May 1.31-34p4) and Tiki Obs. (May 2.39-42p2)
K08H04U 2008 HU4 (small asteroid, arc=3 days, H=28.2 ~8m) from Tiki Obs. (May 2.43-48p3) and Great Shefford Obs. (May 3.01-03p3)
K08H03R 2008 HR3 (small asteroid, Q=4.132 AU, arc=3 days, H=24.8 ~37m) from Spacewatch 1.8m (May 2.25-27p3)
K08H03O 2008 HO3 (Q=5.202 AU, arc=3 days, H=17.8 ~933m) from MLS (May 2.32-33p8)
K08H03D 2008 HD3 (i=54.0°, arc=3 days, H=19.6 ~407m) from LINEAR (May 1.31-35p5)
Observations of small asteroids (H>22.0)
K08J00E 2008 JE (arc=1 day, H=25.8 ~23m) from Great Shefford Obs. (May 1.92-94p3) and Tiki Obs. (May 2.28-34p3)
K08H02B 2008 HB2 (arc=6 days, H=25.5 ~27m) from MLS (May 2.28-30p4) and Great Shefford Obs. (May 2.99-00p3)
Observations of other objects
K08J00J 2008 JJ (i=44.5°, arc=3 days, H=18.8 ~589m) from Great Shefford Obs. (May 3.04-05p3)
K08H01W 2008 HW1 (q=0.102 AU, Q=5.066 AU, arc=33 days, H=17.5 ~1.07 km) from Iluro Obs. (May 2.07p3)
K08F06N 2008 FN6 (arc=33 days, H=21.4 ~178m) from LINEAR (May 1.25-29p5) and Altschwendt Obs. (May 1.92-94p3)
K08E97Z 2008 EZ97 (arc=48 days, H=17.9 ~891m) from Tiki Obs. (May 2.51-53p2)
K08E69C 2008 EC69 (Q=4.458 AU, arc=75 days, H=17.1 ~1.29 km) from Mirasteilas Obs. (May 3.03-04p3)
K08E05Z 2008 EZ5 (arc=59 days, H=19.5 ~426m) from Tiki Obs. (May 2.54-60p3)
K08E00S 2008 ES (Q=4.037 AU, arc=2 opp, H=18.3 ~741m) from CSS (May 2.24-25p3)
K08D00E 2008 DE (arc=80 days, H=19.6 ~407m) from Siegen Obs. (May 1.06-07p3) and Iluro Obs. (May 2.09-10p3)
K08C23P 2008 CP23 (arc=90 days, H=19.6 ~407m) from LINEAR (May 1.21-24p4)
K07V07Y 2007 VY7 (arc=3 opp, H=19.5 ~426m) from Spacewatch 0.9m (May 2.20-23p3)
K07V04Q 2007 VQ4 (arc=3 opp, H=16.0 ~2.14 km, q=1.271 AU) from Iluro Obs. (May 1.96p3) and Santa Mama Obs. (May 2.82-84p6)
K06U00A 2006 UA (arc=2 opp, H=20.1 ~323m) from CSS (May 2.18-20p4)
K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from Siegen Obs. (May 1.09p3), Ondrejov Obs. (May 1.85-00p8), and Iluro Obs. (May 2.05-06p3)
K03SK1D 2003 SD201 (Q=4.973 AU, arc=2 opp, H=17.9 ~891m) from Spacewatch 1.8m (May 2.20-22p3 at V=22.1)
J99F00A 1999 FA (arc=2 opp, H=20.7 ~245m) from MLS (May 2.40-42p3)
J98S35F 1998 SF35 (arc=5 opp, H=17.9 ~891m) from Leura Obs. (May 2.41-42p3)
I4266 184266 2004 VW14 from Iluro Obs. (May 2.04-05p3) and LINEAR (May 2.31-34p4)
E4901 144901 2004 WG1 from LINEAR (May 1.15-19p5)
D7170 137170 1999 HF1 from Iluro Obs. (May 2.12p3)
A2873 102873 1999 WK11 from LINEAR (May 1.30-34p5)
85236 85236 1993 KH from La Murta Obs. (May 2.00-02p3)
53319 53319 1999 JM8 from Urseanu Obs. (May 1.92-94p7)
35107 35107 1991 VH from Urseanu Obs. (May 1.87-90p7) and Mirasteilas Obs. (May 2.01-02p3)
11398 11398 1998 YP11 from Iluro Obs. (May 2.10-11p3) and LINEAR (May 2.35-39p5)
08567 8567 1996 HW1 from LINEAR (May 1.43-45p3)
04954 4954 Eric (1990 SQ) from Mt. Tuffley Obs. (May 2.91-92p3)
03288 3288 Seleucus (1982 DV) from Santa Mama Obs. (May 2.80-81p5)
01866 1866 Sisyphus (1972 XA) from Capannoli Obs. (May 2.89-90p2)

MPEC 2008-J17 - "03:34 UT" - Comet C/2008 J1 (Boattini)

CK08J010 C/2008 J1 (i=46.4°, q=1.549 AU, TP=2008 Mar. 17.336 TT) from CSS (May 2.46-48p4), Moriyama Obs. (May 2.71-72p5 & 2.78p2), Bisei Spaceguard Center (May 2.73-74p6), Farra d'Isonzo Obs. (May 3.00-01p3), Wildberg Obs. (May 3.02-03p4), Guidestar Obs. (May 3.02-03p3), Remanzacco Obs. (May 3.02-05p3), CAST Obs. (May 3.08-09p2), Vallemare di Borbona Obs. (May 3.08-09p4), and Carmelita Obs. (May 3.11-12p3)

Observers on 3 May '08

A total of 74 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 5 in MPEC 2008-J27 -- C/2007 W1, C/2007 G1, C/2005 L3, 70P, 26P
`A44`	Altschwendt Obs. in Austria, 1 in MPEC 2008-J18 -- 2008 FN6
`B37`	Ametlla del Valles Obs. in Spain, 1 in MPEC 2008-J27 -- C/2002 VQ94
`467`	Auckland Obs. in New Zealand, 1 in MPEC 2008-J27 -- C/2008 A1
`A81`	Balzaretto Obs. in Italy, 1 in MPEC 2008-J27 -- C/2007 B2
`132`	Bedoin Obs. in France, 16 in MPECs 2008-J25, 2008-J26 & 2008-J27 -- C/2008 H1, C/2008 G1, C/2007 M3, C/2007 M2, C/2007 G1, C/2007 D1, C/2007 B2, P/2005 SB216, C/2005 L3, C/2002 VQ94, 183P, 180P, 172P, 158P, 124P, 70P
`300`	Bisei Spaceguard Center in Japan, 1 in MPEC 2008-J17 -- C/2008 J1
`215`	Buchloe Obs. in Germany, 4 in MPECs 2008-J25, 2008-J26 & 2008-J27 -- C/2008 H1, P/2008 G2, C/2008 G1, P/2007 T6
`235`	CAST Obs. in Italy, 1 in MPEC 2008-J17 -- C/2008 J1
`J79`	Calarreona Obs. in Spain, 2 in MPEC 2008-J27 -- C/2007 M2, C/2007 B2
`B09`	Capannoli Obs. in Italy, 1 in MPEC 2008-J18 -- 1866
`B20`	Carmelita Obs. in Spain, 3 in MPECs 2008-J17 & 2008-J27 -- C/2008 J1, C/2007 W1, C/2007 B2
`703`	Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2008-J17, 2008-J18, 2008-J20, 2008-J25 & 2008-J27 -- 2008 JO, C/2008 J1, P/2008 G2, C/2008 G1, 2008 ES, 2006 UA, C/2005 L3, 172P
`A77`	Chante-Perdrix Obs. in France, 4 in MPEC 2008-J27 -- C/2007 W1, C/2007 M2, C/2007 D1, 70P
`A10`	Corbera Obs. in Spain, 1 in MPEC 2008-J27 -- C/2007 B2
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2008-J25 -- C/2008 G1
`808`	El Leoncito Obs. in Argentina, 3 in MPEC 2008-J27 -- C/2007 W1, C/2007 B2, C/2006 Q1
`151`	Eschenberg Obs. in Switzerland, 1 in MPEC 2008-J26 -- C/2008 H1
`E85`	Farm Cove Obs., 2 in MPEC 2008-J27 -- C/2007 M2, C/2007 B2
`595`	Farra d'Isonzo Obs. in Italy, 2 in MPECs 2008-J17 & 2008-J20 -- 2008 JO, C/2008 J1
`651`	Grasslands Obs. in Arizona, 3 in MPECs 2008-J19, 2008-J20 & 2008-J22 -- 2008 JQ, 2008 JO, 2008 JN
`J95`	Great Shefford Obs. in England, 7 in MPECs 2008-J18, 2008-J19, 2008-J20 & 2008-J22 -- 2008 JQ, 2008 JO, 2008 JN, 2008 JJ, 2008 JE, 2008 HU4, 2008 HB2
`458`	Guadarrama Obs. in Spain, 1 in MPEC 2008-J27 -- 124P
`A17`	Guidestar Obs. in Germany, 2 in MPECs 2008-J17 & 2008-J19 -- 2008 JN, C/2008 J1
`B19`	Iluro Obs. in Spain, 11 in MPECs 2008-J18, 2008-J26 & 2008-J27 -- 2008 HW1, C/2008 H1, 2008 DE, 2007 VQ4, C/2007 G1, C/2007 B2, 2005 NB7, C/2005 L3, 184266, 137170, 11398
`G89`	Kachina Obs. in Arizona, 1 in MPEC 2008-J23 -- 6P
`704`	LINEAR in New Mexico, 26 in MPECs 2008-J18, 2008-J19, 2008-J22 & 2008-J27 -- 2008 JQ, 2008 JN, 2008 HD3, 2008 HC38, 2008 FN6, 2008 CP23, C/2007 S2, C/2007 M2, C/2007 G1, C/2007 B2, C/2006 S5, P/2005 SB216, 184266, 144901, 11398, 102873, 8567, 197P, 187P, 172P, 128P, 124P, 79P, 68P, 65P, 46P
`J87`	La Canada Obs. in Spain, 1 in MPEC 2008-J27 -- 70P
`J76`	La Murta Obs. in Spain, 7 in MPECs 2008-J18 & 2008-J27 -- C/2007 W1, C/2007 B2, C/2006 S5, 85236, 46P, 29P, 17P
`J38`	La Vara Obs. in Spain, 3 in MPEC 2008-J27 -- C/2007 B2, C/2005 L3, 17P
`E17`	Leura Obs. in New South Wales, 1 in MPEC 2008-J18 -- 1998 SF35
`J59`	Linceo Obs. in Spain, 2 in MPEC 2008-J27 -- C/2007 W1, C/2007 B2
`688`	Lowell Obs. Anderson Mesa Station in Arizona, 1 in MPEC 2008-J23 -- 6P
`H01`	Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2008-J19 -- 2008 JN
`J40`	Malaga Obs. in Spain, 5 in MPECs 2008-J26 & 2008-J27 -- C/2008 H1, C/2008 C1, C/2007 M2, C/2005 L3, 46P
`232`	Masquefa Obs. in Spain, 9 in MPEC 2008-J27 -- C/2007 M2, C/2007 B2, C/2006 S5, C/2005 L3, 180P, 70P, 46P, 29P, 17P
`B67`	Mirasteilas Obs. in Switzerland, 2 in MPEC 2008-J18 -- 2008 EC69, 35107
`118`	Modra Obs. in Slovakia, 2 in MPEC 2008-J27 -- C/2007 T5, C/2007 S2
`152`	Moletai Obs. in Lithuania, 2 in MPEC 2008-J27 -- C/2008 C1, 46P
`213`	Montcabre Obs. in Spain, 3 in MPECs 2008-J26 & 2008-J27 -- C/2008 H1, 46P, 26P
`945`	Monte Deva Obs. in Spain, 4 in MPEC 2008-J27 -- C/2007 W1, C/2007 G1, C/2007 B2, C/2005 L3
`B06`	Montseny Obs. in Spain, 2 in MPEC 2008-J27 -- C/2007 B2, 124P
`900`	Moriyama Obs. in Japan, 11 in MPECs 2008-J17, 2008-J26 & 2008-J27 -- C/2008 J1, C/2008 H1, C/2007 W1, C/2007 M2, C/2007 G1, C/2007 B2, C/2006 W3, C/2006 Q1, C/2005 L3, 197P, 180P
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 12 in MPECs 2008-J18, 2008-J19, 2008-J20, 2008-J21, 2008-J25 & 2008-J27 -- 2008 JP, 2008 JO, 2008 JN, 2008 HO3, 2008 HB2, C/2008 G1, C/2007 T5, P/2006 U5, 1999 FA, 158P, 128P, 57P
`B68`	Mt. Matajur Obs., 1 in MPEC 2008-J27 -- C/2007 W1
`J93`	Mt. Tuffley Obs. in England, 2 in MPECs 2008-J18 & 2008-J27 -- 4954, 124P
`D81`	Nagano Obs., 2 in MPEC 2008-J27 -- C/2007 B2, C/2005 L3
`J47`	Nazaret Obs. in Spain, 6 in MPECs 2008-J25 & 2008-J27 -- P/2008 G2, C/2008 G1, C/2002 VQ94, 158P, 68P, 7P
`J29`	Nira Obs. in Spain, 1 in MPEC 2008-J27 -- P/2007 T6
`423`	North Ryde Obs. in New South Wales, 3 in MPECs 2008-J24 & 2008-J27 -- C/2008 E3, C/2008 A1, 186P
`557`	Ondrejov Obs. in the Czech Republic, 1 in MPEC 2008-J18 -- 2005 NB7
`B49`	Paus Obs. in Spain, 3 in MPEC 2008-J27 -- P/2008 G2, C/2005 L3, C/2002 VQ94
`J53`	Posadas Obs. in Spain, 5 in MPECs 2008-J26 & 2008-J27 -- C/2008 H1, C/2007 B2, 70P, 65P, 46P
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2008-J27 -- C/2007 B2
`D90`	RAS Obs. Moorook in South Australia, 1 in MPEC 2008-J27 -- 15P
`428`	Reedy Creek Obs. in Queensland, 1 in MPEC 2008-J27 -- C/2006 OF2
`473`	Remanzacco Obs. in Italy, 5 in MPECs 2008-J17, 2008-J19, 2008-J22, 2008-J25 & 2008-J27 -- 2008 JQ, 2008 JN, C/2008 J1, C/2008 G1, C/2007 B2
`939`	Rodeno Obs. in Spain, 5 in MPEC 2008-J27 -- C/2007 W1, C/2007 G1, C/2007 B2, C/2005 L3, 46P
`233`	San Vito Obs. in Italy, 1 in MPEC 2008-J27 -- C/2007 W1
`B38`	Santa Mama Obs. in Italy, 2 in MPEC 2008-J18 -- 2007 VQ4, 3288
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2008-J27 -- 183P
`510`	Siegen Obs. in Germany, 3 in MPECs 2008-J18 & 2008-J27 -- 2008 DE, C/2007 G1, 2005 NB7
`056`	Skalnate Pleso Obs. in Slovakia, 2 in MPECs 2008-J25 & 2008-J27 -- P/2008 G2, C/2008 G1
`691`	Spacewatch 0.9m telescope in Arizona, 3 in MPECs 2008-J18 & 2008-J27 -- 2007 VY7, 187P, 68P
`291`	Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2008-J18, 2008-J19 & 2008-J20 -- 2008 JO, 2008 JN, 2008 HR3, 2003 SD201
`A97`	Stammersdorf Obs. in Austria, 1 in MPEC 2008-J27 -- 46P
`629`	Szeged Obs. in Hungary, 12 in MPEC 2008-J27 -- C/2008 C1, C/2007 W1, C/2007 M2, C/2007 B2, C/2006 W3, C/2006 S5, C/2005 L3, 124P, 79P, 46P, 29P, 17P
`F85`	Tiki Obs. in Tahiti, 5 in MPEC 2008-J18 -- 2008 JE, 2008 HU4, 2008 HC38, 2008 EZ97, 2008 EZ5
`A92`	Urseanu Obs. in Romania, 3 in MPECs 2008-J18 & 2008-J27 -- C/2007 W1, 53319, 35107
`A55`	Vallemare di Borbona Obs. in Italy, 1 in MPEC 2008-J17 -- C/2008 J1
`J70`	Vega del Thader Obs. in Spain, 1 in MPEC 2008-J27 -- 197P
`B42`	Vitebsk Obs. in Belarus, 9 in MPECs 2008-J26 & 2008-J27 -- C/2008 H1, C/2007 B2, C/2005 L3, 187P, 180P, 70P, 68P, 26P, 7P
`198`	Wildberg Obs. in Germany, 1 in MPEC 2008-J17 -- C/2008 J1
`367`	Yatsuka Obs., 3 in MPEC 2008-J27 -- C/2007 W1, C/2006 Q1, C/2005 L3

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

Impact Risk Monitoring on 3 May '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2247 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 JQ	JPL Sentry	1550	2090-2091	2	4.8e-07	-6.95	-6.99	0	JPL: "Analysis based on 13 observations spanning 1.0711 days (2008-May-02.30115 to 2008-May-03.37226)." Diameter approximately 0.026 km. from mean, weighted H=25.6.

2008 JP	JPL Sentry	1550	2016-2106	54	1.9e-08	-5.86	-6.56	0	JPL: "Analysis based on 12 observations spanning 1.0370 days (2008-May-02.20655 to 2008-May-03.24359)." Diameter approximately 0.140 km. from mean, weighted H=21.9.

2008 HC38	NEODyS	1300	2029-2063	2	5.43e-08	-7.26	-7.26	0	NEODyS: "Based on 22 optical observations (of which 1 are rejected as outliers) from 2008/04/30.299 to 2008/05/02.420."
2008 HC38	JPL Sentry	1259	2029	1	5.4e-08	-7.26	-7.26	0	JPL: "Analysis based on 21 observations spanning 2.1210 days (2008-Apr-30.29803 to 2008-May-02.41907)." Diameter approximately 0.022 km. from mean, weighted H=25.9.

2008 HB38	NEODyS	1300	2017-2089	48	1.24e-06	-4.38	-5.20	0	NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2008/04/30.296 to 2008/05/02.390."

2008 HU4	NEODyS	1415	2067-2089	10	5.73e-05	-6.22	-6.45	0	NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2008/04/30.325 to 2008/05/03.027."
2008 HU4	JPL Sentry	1259	2085	2	6.0e-05	-6.21	-6.41	0	JPL: "Analysis based on 25 observations spanning 2.7018 days (2008-Apr-30.32444 to 2008-May-03.02629)." Diameter approximately 0.008 km. from mean, weighted H=28.2.

2008 HR3	JPL Sentry	1259	2080	1	4.4e-08	-7.43	-7.43	0	JPL: "Analysis based on 18 observations spanning 2.9901 days (2008-Apr-29.27703 to 2008-May-02.26715)." Diameter approximately 0.033 km. from mean, weighted H=25.0.
2008 HR3	NEODyS	1259	R E M O V E D						-

2008 HO3	NEODyS	1300	2017-2089	58	6.53e-09	-4.11	-5.08	0	NEODyS: "Based on 34 optical observations (of which 0 are rejected as outliers) from 2008/04/29.339 to 2008/05/02.335."
2008 HO3	JPL Sentry	1259	2019-2100	18	4.9e-09	-4.30	-5.14	0	JPL: "Analysis based on 34 observations spanning 2.9954 days (2008-Apr-29.33863 to 2008-May-02.33405)." Diameter approximately 1.119 km. from mean, weighted H=17.4.

2008 HD3	NEODyS	1259	R E M O V E D						-
2008 HD3	JPL Sentry	1259	R E M O V E D						JPL: Risk listing removed at 1036 UTC.

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 3 May '08

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

1609	Grabbed MPEC 2008-J27 - Observations of Comets - see above
1551	Grabbed MPEC 2008-J23 - Comet 6P/D'Arrest - see above Grabbed MPEC 2008-J24 - Comet C/2008 E3 (Garradd) - see above Grabbed MPEC 2008-J25 - Comet C/2008 G1 (Gibbs) - see above Grabbed MPEC 2008-J26 - Comet C/2008 H1 (LINEAR) - see above
1550	Noted that JPL Sentry has posted 2008 JP as an impact risk - see above Noted that JPL Sentry has posted 2008 JQ as an impact risk - see above
1415	Noted that NEODyS has updated its 2008 HU4 risk assessment - see above Grabbed MPEC 2008-J20 - 2008 JO - see above Grabbed MPEC 2008-J21 - 2008 JP - see above Grabbed MPEC 2008-J22 - 2008 JQ - see above
1300	Noted that NEODyS has updated its 2008 HO3 risk assessment - see above
1259	Noted that NEODyS has posted 2008 HB38 as an impact risk - see above Noted that JPL Sentry has posted 2008 HC38 as an impact risk - see above Noted that NEODyS has posted 2008 HC38 as an impact risk - see above Noted that JPL Sentry has removed 2008 HD3 as an impact risk - see above Noted that NEODyS has removed 2008 HD3 as an impact risk - see above Noted that JPL Sentry has updated its 2008 HO3 risk assessment - see above Noted that JPL Sentry has updated its 2008 HR3 risk assessment - see above Noted that NEODyS has removed 2008 HR3 as an impact risk - see above Noted that JPL Sentry has updated its 2008 HU4 risk assessment - see above Grabbed MPEC 2008-J18 - Daily Orbit Update - see above Grabbed MPEC 2008-J19 - 2008 JN - see above
0432	Grabbed MPEC 2008-J17 - Comet C/2008 J1 (Boattini) - see above

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