2008-06-02 Tracking News

Contents on 2 June '08

IAU Minor Planet Center
- NEOCP Activity -- three listings: 1 new, 2 updated
- New MPECs -- eleven MPECs
Observers -- 44 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
Old & new CRT Archive
Old News Archive & Small Objects Archive

NOTE: These news page will update less often and at sometimes irregular intervals from May 31st through approximately June 7th.

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 2 June '08

The MPC's NEO Confirmation Page has 3 listings: 1 new, 2 updated

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new and two updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of seven 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 2 June '08

Minor Planet Electronic Circulars

As of last check at 2355 UTC, there have been eleven MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-L03 time-stamped "00:01 UT" - Comet C/2008 H1 (LINEAR) - see below
MPEC 2008-L04 time-stamped "00:07 UT" - Comet C/2008 J1 (Boattini) - see below
MPEC 2008-L05 time-stamped "00:12 UT" - Comet P/2008 J2 (Beshore) - see below
MPEC 2008-L06 time-stamped "00:20 UT" - Observations of Comets - see below
MPEC 2008-L07 time-stamped "06:07 UT" - Daily Orbit Update - see below
MPEC 2008-L08 time-stamped "11:52 UT" - 2008 KV28 - see below
MPEC 2008-L09 time-stamped "11:57 UT" - 2008 LA - see below
MPEC 2008-L10 time-stamped "12:00 UT" - 2008 LB - see below
MPEC 2008-L11 time-stamped "12:04 UT" - 2008 LC - see below
MPEC 2008-L12 time-stamped "12:08 UT" - 2008 LD - see below
MPEC 2008-L13 time-stamped "12:11 UT" - 2008 LE

MPEC 2008-L13 - "12:11 UT" - 2008 LE

K08L00E 2008 LE (small asteroid, H=23.6 ~65m) was discovered at 0703 UT on 2 June by the Mt. Lemmon Survey (MLS), which observed it at June 2.29-32p4 and 2.37-44p8.

MPEC 2008-L12 - "12:08 UT" - 2008 LD

K08L00D 2008 LD (small asteroid, Earth MOID=1.0 LD, H=28.9 ~6m) was discovered at 0659 UT on 2 June by MLS, which observed it at June 2.29-34p8 and 2.40p4. This object will be coming within ten lunar distances (LD) of Earth, reaching 2.1 LD on 3 June.

MPEC 2008-L11 - "12:04 UT" - 2008 LC

K08L00C 2008 LC (small asteroid, Earth MOID=9.1 LD, H=24.4 ~45m) was discovered at 0716 UT on 1 June by the Spacewatch 0.9m telescope, which observed it at June 1.30-34p3. The discovery was confirmed by the Spacewatch 1.8m telescope (June 1.41p3 & 2.30-31p3), MLS (June 2.26-28p4), and Jim Bedient via Faulkes Telescope North (June 2.38-39p3). This object will be coming within ten lunar distances (LD) of Earth, reaching 9.7 LD on 17 June.

MPEC 2008-L10 - "12:00 UT" - 2008 LB

K08L00B 2008 LB (risk-listed, Earth MOID=0.5 LD, H=25.8 ~23m) was discovered at 0633 UT on 1 June by MLS, which observed it at June 1.27-35p8. The discovery was confirmed by Spacewatch 1.8m (June 2.15-16p3). This object will be coming within ten lunar distances (LD) of Earth, reaching 3.5 LD on 10 June.

MPEC 2008-L09 - "11:57 UT" - 2008 LA

K08L00A 2008 LA (risk-listed, Earth MOID=0.5 LD, H=23.2 ~78m) was discovered at 0403 UT on 1 June by Spacewatch 0.9m, which observed it at June 1.17-22p3. The discovery was confirmed by Spacewatch 1.8m (June 1.30-31p3 & 2.29p3), MLS (June 2.23-25p4), and Bedient/Faulkes North (June 2.27-30p3).

MPEC 2008-L08 - "11:52 UT" - 2008 KV28

K08K28V 2008 KV28 (H=20.0 ~339m) was discovered at 0503 UT on 31 May by Spacewatch 0.9m, which observed it at May 31.21-25p3. The discovery was confirmed by Spacewatch 1.8m (May 31.32-33p3, June 1.39-40p3 & 2.32-33p3) and Bedient/Faulkes North (May 31.36-39p3 & June 2.28-30p3).

<< DOU on 2 June '08 >> MPEC 2008-L07 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K08K05Z 2008 KZ5 (arc=3 days, H=19.9 ~355m) from Spacewatch 1.8m (June 1.37p3)
K08H04U 2008 HU4 (small asteroid, arc=32 days, H=28.4 ~7m) from Spacewatch 1.8m (June 1.29-30p3)
Observations of recently (no longer) risk-listed objects
K08K02X 2008 KX2 (small asteroid, arc=3 days, H=24.6 ~41m) from Tiki Obs. (June 1.37-45p3)
K08J00P 2008 JP (arc=30 days, H=20.8 ~234m) from Spacewatch 1.8m (June 1.16-17p2)
K08H38B 2008 HB38 (arc=32 days, H=21.1 ~204m) from MLS (June 1.23-25p4)
K08H03O 2008 HO3 (Q=4.800 AU, arc=33 days, H=18.0 ~851m) from Desert Moon Obs. (June 1.15p1 & 1.20-24p2)
K08H03E 2008 HE3 (Q=4.481 AU, arc=34 days, H=19.0 ~537m) from Spacewatch 1.8m (June 1.27-28p3)
Observations of other objects
K08K00P 2008 KP (i=61.0°, q=0.232 AU, arc=4 days, H=18.8 ~589m) from Spacewatch 0.9m (May 31.27-31p3)
K08J07Z 2008 JZ7 (Q=4.375 AU, arc=27 days, H=18.6 ~645m) from LINEAR (June 1.17-19p3)
K08J00J 2008 JJ (i=44.6°, arc=32 days, H=19.2 ~490m) from Ovidiu Vaduvescu via Cerro Tololo Inter-American Obs. (CTIO) (June 1.21p2)
K08H03S 2008 HS3 (arc=32 days, H=21.7 ~155m) from Winer Obs. (May 30.16-20p3)
K08H01Z 2008 HZ1 (arc=36 days, H=19.3 ~467m) from Spacewatch 1.8m (June 1.21-22p3)
K07V85A 2007 VA85 (i=132.5°, Q=7.308 AU, arc=2 opp, H=15.1 ~3.23 km, q=1.104 AU) from Spacewatch 1.8m (June 1.38-39p3)
K07L15B 2007 LB15 (arc=2 opp, H=19.5 ~426m) from Spacewatch 1.8m (June 1.45-46p2)
K07L00L 2007 LL (arc=2 opp, H=20.4 ~282m) from LINEAR (June 1.32-36p3)
K05O03G 2005 OG3 (arc=2 opp, H=19.7 ~389m) from Spacewatch 1.8m (June 1.22-24p3 at V=22.9)
K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from Casasco Obs. (June 1.04-05p2)
K03O03A 2003 OA3 (arc=3 opp, H=19.7 ~389m) from Spacewatch 1.8m (June 1.43-45p3)
K02RB2V 2002 RV112 (arc=4 opp, H=17.9 ~891m) from Spacewatch 0.9m (June 1.42-45p3)
I4990 184990 2006 KE89 from LINEAR (June 1.23-25p3)
I4266 184266 2004 VW14 from Spacewatch 0.9m (June 1.18-23p3) and LINEAR (June 1.22-26p4)
F4715 154715 2004 LB6 from LINEAR (June 1.27-31p5)
A2873 102873 1999 WK11 from LINEAR (June 1.21-25p5)
65996 65996 1998 MX5 from MLS (June 1.41-43p4)
53435 53435 1999 VM40 from MLS (June 1.23-25p4)
13553 13553 1992 JE from MLS (June 1.16-18p4)

MPEC 2008-L06 - "00:20 UT" - Observations of Comets

CK08E030 C/2008 E3 (Garradd) from North Ryde Obs. (May 27.56-58p2, 29.57-59p2, 30.50p1, 30.57p1, 31.47p1 & 31.52p1), Auckland Obs. (May 28.54p3), and Kambah Obs. (May 29.62p2)
CK08C010 C/2008 C1 (Chen-Gao) from Schiaparelli Obs. (May 1.87p2), Auckland Obs. (May 28.27p2 & 28.32p2), and Farm Cove Obs. (May 28.27-28p3)
CK08A010 C/2008 A1 (McNaught) from Altamira Obs. (March 15.85-86p2), Farm Cove Obs. (May 28.26-27p3), and Auckland Obs. (May 28.33p3)
CK07W010 C/2007 W1 (Boattini) from Nazaret Obs. (May 26.87-88p3, 27.86-87p3, 28.87-88p3, 29.86-87p4, 30.87-88p3, 31.86-87p3 & June 1.86p3), Auckland Obs. (May 28.34p3), and Tiki Obs. (May 31.21-22p2)
CK07N030 C/2007 N3 (Lulin) from Ageo Obs. (April 30.78p1 & May 31.77-78p3), Los Molinos Obs. (May 11.28-31p4), Auckland Obs. (May 11.62p3), and Nazaret Obs. (June 1.11-12p4)
CK07M030 C/2007 M3 (LINEAR) from Ageo Obs. (April 30.68-69p3) and Kambah Obs. (May 31.55p2)
CK07M020 C/2007 M2 (Catalina) from Kiev Comet Station (May 20.90-91p2), Yatsuka Obs. (May 26.51-52p2), LINEAR (May 28.16-20p5), Auckland Obs. (May 28.35-37p3), and Ametlla del Valles Obs. (May 29.86-87p3)
CK07G010 C/2007 G1 (LINEAR) from Yatsuka Obs. (May 26.59p3), Moriyama Obs. (May 26.65-66p2 & 31.69-70p2), Auckland Obs. (May 28.57-58p3), Atlante Obs. (May 29.04-05p3), and Rodeno Obs. (June 1.94-95p3)
CK07D010 C/2007 D1 (LINEAR) from Buchloe Obs. (May 3.96p3) and Ametlla del Valles Obs. (May 29.87p3)
CK07B020 C/2007 B2 (Skiff) from Yatsuka Obs. (May 26.50p3), Moriyama Obs. (May 26.54-56p2), CAST Obs. (May 27.84p1), Auckland Obs. (May 28.37p2), Rodeno Obs. (May 29.87p3 & June 1.86-88p3), Ametlla del Valles Obs. (May 29.88-89p7), Malaga Obs. (May 31.87-89p4), and Ingenio Obs. (May 31.98p1)
CK06V010 C/2006 V1 (Catalina) from Auckland Obs. (May 28.55p3), Kambah Obs. (May 29.59p2), and North Ryde Obs. (May 31.56-59p2)
CK06Q010 C/2006 Q1 (McNaught) from Yatsuka Obs. (May 26.48-49p3), Nazaret Obs. (May 26.90-91p3, 28.90-91p3, 29.89-90p3, 30.89-90p5, 31.88p4 & June 1.87-89p3), and Auckland Obs. (May 28.34-35p3)
CK06O02F C/2006 OF2 (Broughton) from Moriyama Obs. (May 5.78-79p2), Ageo Obs. (May 26.74p3), and RAS Obs. Mayhill (June 1.42-44p3)
PK05SL6B P/2005 SB216 (LONEOS) from Nazaret Obs. (May 16.89-90p3) and LINEAR (May 27.17-19p3)
CK05S040 C/2005 S4 (McNaught) from Ageo Obs. (March 7.80-81p2) and the SZTE Asteroid Program (SZTE) (May 26.02-03p2)
CK05L030 C/2005 L3 (McNaught) from Kiev Comet Station (May 20.93-98p11), Ageo Obs. (May 25.56-57p3), Yatsuka Obs. (May 26.56-57p3), Moriyama Obs. (May 26.68-69p2 & 31.64p2), LINEAR (May 27.26-30p5), CAST Obs. (May 27.83p1), Gualba Obs. (May 27.93-94p2), Trieste Obs. (May 27.94-95p4), Auckland Obs. (May 28.58-59p3), Vitebsk Obs. (May 28.89-90p5), Atlante Obs. (May 28.90-92p3), Ametlla del Valles Obs. (May 29.97-98p6), Petit Jean Mtn. South Obs. (PJMSO) (May 30.18-19p5), Nazaret Obs. (May 31.00-02p4), and Rodeno Obs. (June 1.92-93p3)
0199P 199P/Shoemaker 4 from Ametlla del Valles Obs. (April 30.92p1, 30.96p3 & May 21.90-91p3) and Vitebsk Obs. (May 28.87p1)
0187P 187P/LINEAR from LINEAR (May 25.26-30p5) and Vitebsk Obs. (May 30.91p2)
0186P 186P/Garradd from Kambah Obs. (May 27.51-52p2 & 29.64p2) and North Ryde Obs. (May 29.49-52p2, 30.39p1 & 30.45p1)
0180P 180P/NEAT from Kiev Comet Station (May 20.85-89p7), Moriyama Obs. (May 26.52-53p2), Yatsuka Obs. (May 26.54p2), and LINEAR (May 27.16-20p5)
0172P 172P/Yeung from Schiaparelli Obs. (May 8.94p1) and LINEAR (May 27.16-19p4)
0099P 99P/Kowal 1 from Mt. John Obs. (May 10.61-62p3) and LINEAR (May 28.31-35p4)
0068P 68P/Klemola from Ageo Obs. (May 25.70p3), CAST Obs. (May 27.84p1), Auckland Obs. (May 28.56p3), Vitebsk Obs. (May 28.91-92p2), Nazaret Obs. (May 28.95-96p3 & 31.96-98p3), Spacewatch 0.9m (May 30.29-32p3), and Moriyama Obs. (May 31.65-66p2)
0047P 47P/Ashbrook-Jackson from the Siding Spring Survey (SSS) (May 8.69p1), Auckland Obs. (May 28.64p3), and Nazaret Obs. (June 1.16p3)
0046P 46P/Wirtanen from Moriyama Obs. (May 26.50p2), LINEAR (May 27.15-19p5), CAST Obs. (May 27.86p1), Nazaret Obs. (May 29.95p3, 30.92p3, 31.92-94p3 & June 1.89-90p3), and Rodeno Obs. (June 1.89p2)
0026P 26P/Grigg-Skjellerup from Moriyama Obs. (May 26.71-72p2), LINEAR (May 27.35-39p5), Vitebsk Obs. (May 30.95-96p2), and Nazaret Obs. (June 1.04p3)
0015P 15P/Finlay from Ageo Obs. (May 20.77p2 & 26.76-77p2)
0008P 8P/Tuttle from Auckland Obs. (May 28.38-40p4) and Kambah Obs. (May 29.48p2 & 31.42-43p2)
0007P 7P/Pons-Winnecke from Kiev Comet Station (May 16.90-91p6), Ageo Obs. (May 25.63p3), Moriyama Obs. (May 26.48p2), Yatsuka Obs. (May 26.53p2), Nazaret Obs. (May 26.93-94p4, 27.89p1, 28.92-94p3, 29.99-00p3, 31.94-95p3 & June 1.90-91p3), Tzec Maun Obs. (May 27.24p1), Nagano Obs. (May 27.50-51p3), CAST Obs. (May 27.86p1), Montcabre Obs. (May 29.87-90p3), and Vitebsk Obs. (May 30.88p1)
0006P 6P/d'Arrest from Nazaret Obs. (May 26.00-01p5, 28.99p3, 31.02-03p4 & June 1.02-03p3), Malaga Obs. (May 26.03-08p4), Ageo Obs. (May 26.68p2), CAST Obs. (May 27.90p1), Auckland Obs. (May 28.61-65p3), and Vitebsk Obs. (May 28.94-95p2)

MPEC 2008-L05 - "00:12 UT" - Comet P/2008 J2 (Beshore)

PK08J020 P/2008 J2 (Beshore) (q=2.408 AU, Q=4.557 AU, TP=2008 Mar. 20.029 TT) from Ageo Obs. (May 25.73p2), Yatsuka Obs. (May 26.57-58p3), Moriyama Obs. (May 26.64-65p2 & 31.67p2), Kambah Obs. (May 27.54p2 & 29.53-54p2), Farm Cove Obs. (May 28.46-47p3 & 30.34p3), Auckland Obs. (May 28.56p3), Nazaret Obs. (May 29.00-01p4 & 31.98-99p3), Atlante Obs. (May 29.01-03p3), RAS Mayhill (May 29.33p1), Montana Cabreja Obs. (May 29.98-02p2), Vitebsk Obs. (May 30.94p1), Stammersdorf Obs. (May 31.99-00p3), and Ingenio Obs. (June 1.03p1)

MPEC 2008-L04 - "00:07 UT" - Comet C/2008 J1 (Boattini)

CK08J010 C/2008 J1 (Boattini) (i=61.8°, q=1.724 AU, Q=336.719 AU, TP=2008 July 13.248 TT) from Ageo Obs. (May 26.72p3), Moriyama Obs. (May 26.73p2), Modra Obs. (May 27.03-04p5), Crni Vrh Obs. (May 27.97-99p4), SZTE (May 28.05-06p12), Vitebsk Obs. (May 28.96-97p6), Nazaret Obs. (May 29.02p3 & June 1.06-07p3), Atlante Obs. (May 29.12-14p3), Montcabre Obs. (May 29.94-96p3), Montana Cabreja Obs. (May 30.06-08p2), PJMSO (May 31.37-40p5), and Stammersdorf Obs. (June 1.02-04p5)

MPEC 2008-L03 - "00:01 UT" - Comet C/2008 H1 (LINEAR)

CK08H010 C/2008 H1 (LINEAR) (i=75.5°, q=2.760 AU, Q=101.152 AU, TP=2008 Mar. 16.4946 TT) from Yatsuka Obs. (April 29.52-53p2), Ageo Obs. (May 25.59-60p3), and Moriyama Obs. (May 26.58p2)

Observers on 2 June '08

A total of 44 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 12 in MPECs 2008-L03, 2008-L04, 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 J1, C/2008 H1, C/2007 N3, C/2007 M3, C/2006 OF2, C/2005 S4, C/2005 L3, 68P, 15P, 7P, 6P
`J24`	Altamira Obs. in Spain, 1 in MPEC 2008-L06 -- C/2008 A1
`B37`	Ametlla del Valles Obs. in Spain, 5 in MPEC 2008-L06 -- C/2007 M2, C/2007 D1, C/2007 B2, C/2005 L3, 199P
`J51`	Atlante Obs. in the Canary Islands, 4 in MPECs 2008-L04, 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 J1, C/2007 G1, C/2005 L3
`467`	Auckland Obs. in New Zealand, 16 in MPECs 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 E3, C/2008 C1, C/2008 A1, C/2007 W1, C/2007 N3, C/2007 M2, C/2007 G1, C/2007 B2, C/2006 V1, C/2006 Q1, C/2005 L3, 68P, 47P, 8P, 6P
`215`	Buchloe Obs. in Germany, 1 in MPEC 2008-L06 -- C/2007 D1
`235`	CAST Obs. in Italy, 6 in MPEC 2008-L06 -- C/2007 B2, C/2005 L3, 68P, 46P, 7P, 6P
`B66`	Casasco Obs. in Italy, 1 in MPEC 2008-L07 -- 2005 NB7
`807,`	Ovidiu Vaduvescu via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2008-L07 -- 2008 JJ
`106`	Crni Vrh Obs. in Slovenia, 1 in MPEC 2008-L04 -- C/2008 J1
`448`	Desert Moon Obs. in New Mexico, 1 in MPEC 2008-L07 -- 2008 HO3
`E85`	Farm Cove Obs. in New Zealand, 3 in MPECs 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 C1, C/2008 A1
`F654`	Jim Bedient in Hawaii via Faulkes Telescope North in Hawaii, 3 in MPECs 2008-L08, 2008-L09 & 2008-L11 -- 2008 LC, 2008 LA, 2008 KV28
`442`	Gualba Obs. in Spain, 1 in MPEC 2008-L06 -- C/2005 L3
`J39`	Ingenio Obs. in the Canary Islands, 2 in MPECs 2008-L05 & 2008-L06 -- P/2008 J2, C/2007 B2
`415`	Kambah Obs. in the Australian Capital Territory, 6 in MPECs 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 E3, C/2007 M3, C/2006 V1, 186P, 8P
`585`	Kiev Comet Station in the Ukraine, 4 in MPEC 2008-L06 -- C/2007 M2, C/2005 L3, 180P, 7P
`704`	LINEAR in New Mexico, 15 in MPECs 2008-L06 & 2008-L07 -- 2008 JZ7, C/2007 M2, 2007 LL, P/2005 SB216, C/2005 L3, 184990, 184266, 154715, 102873, 187P, 180P, 172P, 99P, 46P, 26P
`844`	Los Molinos Obs. in Uruguay, 1 in MPEC 2008-L06 -- C/2007 N3
`J40`	Malaga Obs. in Spain, 2 in MPEC 2008-L06 -- C/2007 B2, 6P
`118`	Modra Obs. in Slovakia, 1 in MPEC 2008-L04 -- C/2008 J1
`J45`	Montana Cabreja Obs. in the Canary Islands, 2 in MPECs 2008-L04 & 2008-L05 -- P/2008 J2, C/2008 J1
`213`	Montcabre Obs. in Spain, 2 in MPECs 2008-L04 & 2008-L06 -- C/2008 J1, 7P
`900`	Moriyama Obs. in Japan, 12 in MPECs 2008-L03, 2008-L04, 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 J1, C/2008 H1, C/2007 G1, C/2007 B2, C/2006 OF2, C/2005 L3, 180P, 68P, 46P, 26P, 7P
`474`	Mt. John Obs. in New Zealand, 1 in MPEC 2008-L06 -- 99P
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 9 in MPECs 2008-L07, 2008-L09, 2008-L10, 2008-L11, 2008-L12 & 2008-L13 -- 2008 LE, 2008 LD, 2008 LC, 2008 LB, 2008 LA, 2008 HB38, 65996, 53435, 13553
`D81`	Nagano Obs., 1 in MPEC 2008-L06 -- 7P
`J47`	Nazaret Obs. in Spain, 13 in MPECs 2008-L04, 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 J1, C/2007 W1, C/2007 N3, C/2006 Q1, P/2005 SB216, C/2005 L3, 68P, 47P, 46P, 26P, 7P, 6P
`423`	North Ryde Obs. in New South Wales, 3 in MPEC 2008-L06 -- C/2008 E3, C/2006 V1, 186P
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 2 in MPECs 2008-L04 & 2008-L06 -- C/2008 J1, C/2005 L3
`H06`	RAS Obs. Mayhill in New Mexico, 2 in MPECs 2008-L05 & 2008-L06 -- P/2008 J2, C/2006 OF2
`939`	Rodeno Obs. in Spain, 4 in MPEC 2008-L06 -- C/2007 G1, C/2007 B2, C/2005 L3, 46P
`461`	SZTE Asteroid Program (SZTE) in Hungary, 2 in MPECs 2008-L04 & 2008-L06 -- C/2008 J1, C/2005 S4
`204`	Schiaparelli Obs. in Italy, 2 in MPEC 2008-L06 -- C/2008 C1, 172P
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2008-L06 -- 47P
`691`	Spacewatch 0.9m telescope in Arizona, 7 in MPECs 2008-L06, 2008-L07, 2008-L08, 2008-L09 & 2008-L11 -- 2008 LC, 2008 LA, 2008 KV28, 2008 KP, 2002 RV112, 184266, 68P
`291`	Spacewatch 1.8m telescope in Arizona, 13 in MPECs 2008-L07, 2008-L08, 2008-L09, 2008-L10 & 2008-L11 -- 2008 LC, 2008 LB, 2008 LA, 2008 KZ5, 2008 KV28, 2008 JP, 2008 HZ1, 2008 HU4, 2008 HE3, 2007 VA85, 2007 LB15, 2005 OG3, 2003 OA3
`A97`	Stammersdorf Obs. in Austria, 2 in MPECs 2008-L04 & 2008-L05 -- P/2008 J2, C/2008 J1
`F85`	Tiki Obs. in Tahiti, 2 in MPECs 2008-L06 & 2008-L07 -- 2008 KX2, C/2007 W1
`A82`	Trieste Obs. in Italy, 1 in MPEC 2008-L06 -- C/2005 L3
`H10`	Tzec Maun Obs. in New Mexico, 1 in MPEC 2008-L06 -- 7P
`B42`	Vitebsk Obs. in Belarus, 9 in MPECs 2008-L04, 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 J1, C/2005 L3, 199P, 187P, 68P, 26P, 7P, 6P
`648`	Winer Obs. in Arizona, 1 in MPEC 2008-L07 -- 2008 HS3
`367`	Yatsuka Obs., 9 in MPECs 2008-L03, 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 H1, C/2007 M2, C/2007 G1, C/2007 B2, C/2006 Q1, C/2005 L3, 180P, 7P

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

Impact Risk Monitoring on 2 June '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2355 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 LB	JPL Sentry	1419	2021-2101	26	3.8e-06	-5.48	-6.02	0	JPL: "Analysis based on 11 observations spanning .88636 days (2008-Jun-01.27329 to 2008-Jun-02.15965)." Diameter approximately 0.023 km. from mean, weighted H=25.8.

2008 LA	JPL Sentry	1558	2011-2107	341	7.8e-06	-4.17	-5.13	0	JPL: "Analysis based on 16 observations spanning 1.1286 days (2008-Jun-01.16922 to 2008-Jun-02.29784)." Diameter approximately 0.076 km. from mean, weighted H=23.3.

2008 KZ5	NEODyS	1420	2018-2086	20	8.23e-07	-3.64	-4.28	0	NEODyS: "Based on 54 optical observations (of which 1 are rejected as outliers) from 2008/05/29.229 to 2008/06/01.376."
2008 KZ5	JPL Sentry	1419	2013-2104	108	1.8e-06	-3.36	-4.02	0	JPL: "Analysis based on 53 observations spanning 3.1469 days (2008-May-29.22802 to 2008-Jun-01.37488)." Diameter approximately 0.352 km. from mean, weighted H=19.9.

2008 HU4	NEODyS	1420	2073-2086	7	7.88e-06	-7.12	-7.44	0	NEODyS: "Based on 61 optical observations (of which 0 are rejected as outliers) from 2008/04/30.325 to 2008/06/01.297."
2008 HU4	JPL Sentry	1419	2076-2079	2	4.6e-06	-7.35	-7.46	0	JPL: "Analysis based on 61 observations spanning 31.971 days (2008-Apr-30.32444 to 2008-Jun-01.29579)." Diameter approximately 0.007 km. from mean, weighted H=28.4.

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 2 June '08

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

1558	Noted that JPL Sentry has posted 2008 LA as an impact risk - see above
1420	Noted that NEODyS has updated its 2008 HU4 risk assessment - see above Noted that NEODyS has updated its 2008 KZ5 risk assessment - see above Grabbed MPEC 2008-L07 - Daily Orbit Update - see above Grabbed MPEC 2008-L08 - 2008 KV28 - see above Grabbed MPEC 2008-L09 - 2008 LA - see above Grabbed MPEC 2008-L10 - 2008 LB - see above Grabbed MPEC 2008-L11 - 2008 LC - see above Grabbed MPEC 2008-L12 - 2008 LD - see above Grabbed MPEC 2008-L13 - 2008 LE - see above
1419	Noted that JPL Sentry has updated its 2008 HU4 risk assessment - see above Noted that JPL Sentry has updated its 2008 KZ5 risk assessment - see above Noted that JPL Sentry has posted 2008 LB as an impact risk - see above
0128	Grabbed MPEC 2008-L06 - Observations of Comets - see above
0017	Grabbed MPEC 2008-L03 - Comet C/2008 H1 (LINEAR) - see above Grabbed MPEC 2008-L04 - Comet C/2008 J1 (Boattini) - see above Grabbed MPEC 2008-L05 - Comet P/2008 J2 (Beshore) - see above

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