Contents  on 9 June '08

Resources:

NOTE: These news pages will update less often and at irregular intervals through June 12th.

The latest A/CC news is available via framed access, RSS news feed 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 9 June '08

The MPC's NEO Confirmation Page has 1 listing: 1 updated

When last checked at 2033 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one updated listing. This was a "one nighter." So far The Tracking News has counted a total of four 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 9 June '08

Minor Planet Electronic Circulars

As of last check at 2034 UTC, there have been eight MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2008-L40 - "19:23 UT" - Observations of Comets


MPEC 2008-L39 - "19:04 UT" - Comet C/2008 J6 (Hill)


MPEC 2008-L38 - "18:51 UT" - Comet P/2008 J2 (Beshore)


MPEC 2008-L37 - "18:46 UT" - Comet C/2008 J1 (Boattini)


MPEC 2008-L36 - "18:40 UT" - Comet C/2008 H1 (LINEAR)


MPEC 2008-L35 - "18:35 UT" - Comet C/2008 G1 (Gibbs)


MPEC 2008-L34 - "11:09 UT" - 2008 JT35


<< DOU on 9 June '08 >>  MPEC 2008-L33 - "06:08 UT" - Daily Orbit Update

Observers  on 9 June '08

A total of 55 observing facilities appear in today's MPECs.

CodeObserver / observatory
H077300 Obs. in New Mexico, 1 in MPEC 2008-L40 -- C/2006 OF2
349Ageo Obs. in Japan, 3 in MPECs 2008-L37 & 2008-L40 -- C/2008 J1, C/2005 L3, 6P
J24Altamira Obs. in Spain, 7 in MPECs 2008-L36, 2008-L38 & 2008-L40 -- P/2008 J2, C/2008 H1, C/2002 VQ94, 68P, 67P, 26P, 6P
B37Ametlla del Valles Obs. in Spain, 5 in MPECs 2008-L37 & 2008-L40 -- C/2008 J1, C/2007 JA21, C/2002 VQ94, 79P, 26P
H55Astronomical Research Obs. (ARO) in Illinois, 10 in MPEC 2008-L33 -- 2008 LH2, 2008 LG2, 2008 LC, 2008 LB, 2008 LA, 2008 KZ5, 2008 KN11, 2008 KD6, 2008 HF2, 2008 GR3
J51Atlante Obs. in the Canary Islands, 8 in MPECs 2008-L33, 2008-L38 & 2008-L40 -- P/2008 J2, 2007 LL, C/2007 G1, C/2005 L3, 2000 AD205, 35107, 137170, 68P
467Auckland Obs. in New Zealand, 1 in MPEC 2008-L40 -- C/2006 S5
A74Bergen-Enkheim Obs. in Germany, 2 in MPECs 2008-L33 & 2008-L34 -- 2008 LG2, 2008 JT35
I77CEAMIG-REA in Brazil, 2 in MPECs 2008-L34 & 2008-L40 -- 2008 JT35, C/2007 W1
J79Calarreona Obs. in Spain, 1 in MPEC 2008-L40 -- C/2005 L3
B20Carmelita Obs. in Spain, 1 in MPEC 2008-L40 -- C/2005 L3
703Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2008-L33, 2008-L34, 2008-L35 & 2008-L40 -- 2008 JT35, C/2008 G1, 2007 VQ4, C/2007 N3, C/2007 JA21, 2005 NB7, C/2005 L3, C/2002 VQ94, 152931, 139289, 7092, 3288, 199P, 79P
A77Chante-Perdrix Obs. in France, 4 in MPECs 2008-L35 & 2008-L40 -- C/2008 G1, C/2005 L3, 7P, 6P
I31Cristo Rey Obs. in Argentina, 1 in MPEC 2008-L40 -- C/2006 Q1
448Desert Moon Obs. in New Mexico, 1 in MPEC 2008-L33 -- 2008 JO20
808El Leoncito Obs. in Argentina, 8 in MPECs 2008-L33 & 2008-L40 -- C/2007 W1, C/2007 B2, C/2006 Q1, 68278, 39572, 153591, 5836, 3691
E85Farm Cove Obs. in New Zealand, 1 in MPEC 2008-L38 -- P/2008 J2
651Grasslands Obs. in Arizona, 1 in MPEC 2008-L34 -- 2008 JT35
J95Great Shefford Obs. in England, 5 in MPECs 2008-L33 & 2008-L34 -- 2008 LH2, 2008 LG2, 2008 LB, 2008 LA, 2008 JT35
E16Grove Creek Obs. in New South Wales, 1 in MPEC 2008-L40 -- 67P
458Guadarrama Obs. in Spain, 2 in MPEC 2008-L40 -- C/2007 B2, 180P
442Gualba Obs. in Spain, 1 in MPEC 2008-L40 -- C/2005 L3
J39Ingenio Obs. in the Canary Islands, 4 in MPECs 2008-L37, 2008-L38 & 2008-L40 -- P/2008 J2, C/2008 J1, C/2007 G1, C/2007 B2
J28Jaen Obs. in Spain, 2 in MPECs 2008-L37 & 2008-L40 -- C/2008 J1, C/2006 OF2
415Kambah Obs. in the Australian Capital Territory, 3 in MPEC 2008-L40 -- C/2007 W1, C/2006 Q1, 8P
682Kanab Obs. in Utah, 1 in MPEC 2008-L33 -- 2008 JO24
585Kiev Comet Station in the Ukraine, 7 in MPECs 2008-L35, 2008-L36, 2008-L37, 2008-L38 & 2008-L40 -- P/2008 J2, C/2008 J1, C/2008 H1, C/2008 G1, C/2005 L3, 26P, 7P
704LINEAR in New Mexico, 6 in MPEC 2008-L40 -- C/2007 B2, 199P, 187P, 180P, 68P, 7P
J38La Vara Obs. in Spain, 7 in MPECs 2008-L37, 2008-L38 & 2008-L40 -- P/2008 J2, C/2008 J1, C/2007 B2, C/2005 L3, 46P, 26P, 7P
J40Malaga Obs. in Spain, 10 in MPECs 2008-L33, 2008-L37, 2008-L38, 2008-L39 & 2008-L40 -- C/2008 J6, P/2008 J2, C/2008 J1, C/2007 W3, C/2007 G1, C/2006 OF2, C/2005 L3, 173689, 26P, 6P
5682David Tholen's team on Mauna Kea in Hawaii, 2 in MPEC 2008-L33 -- 2005 TU45, 2004 XN44
118Modra Obs. in Slovakia, 1 in MPEC 2008-L35 -- C/2008 G1
J45Montana Cabreja Obs. in the Canary Islands, 2 in MPECs 2008-L37 & 2008-L38 -- P/2008 J2, C/2008 J1
945Monte Deva Obs. in Spain, 5 in MPECs 2008-L37, 2008-L38 & 2008-L40 -- P/2008 J2, C/2008 J1, C/2007 G1, C/2007 B2, C/2005 L3
900Moriyama Obs. in Japan, 9 in MPECs 2008-L37, 2008-L38 & 2008-L40 -- P/2008 J2, C/2008 J1, C/2007 W3, C/2007 G1, C/2007 B2, C/2006 OF2, C/2005 L3, 26P, 6P
474Mt. John Obs. in New Zealand, 1 in MPEC 2008-L34 -- 2008 JT35
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2008-L40 -- 158P
J47Nazaret Obs. in Spain, 17 in MPECs 2008-L35, 2008-L36, 2008-L37, 2008-L38, 2008-L39 & 2008-L40 -- C/2008 J6, P/2008 J2, C/2008 J1, C/2008 H1, C/2008 G1, C/2007 JA21, C/2006 Q1, C/2005 L3, C/2002 VQ94, 199P, 180P, 158P, 68P, 67P, 46P, 7P, 6P
B49Paus Obs. in Spain, 1 in MPEC 2008-L40 -- C/2005 L3
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 15 in MPECs 2008-L33, 2008-L37 & 2008-L40 -- 2008 LH2, 2008 LG2, 2008 JR26, 2008 JP14, C/2008 J1, 2008 HS3, 2008 HE66, 2007 LL, 2005 TU45, 2005 NB7, 2005 CF41, 2000 AD205, 154278, 7889, 26P
J53Posadas Obs. in Spain, 2 in MPEC 2008-L40 -- C/2005 L3, 6P
H59Prairie Grass Obs. in Indiana, 1 in MPEC 2008-L34 -- 2008 JT35
H06RAS Obs. Mayhill in New Mexico, 4 in MPEC 2008-L40 -- C/2007 N3, C/2007 G1, 67P, 61P
473Remanzacco Obs. in Italy, 1 in MPEC 2008-L40 -- C/2007 W1
939Rodeno Obs. in Spain, 4 in MPECs 2008-L37, 2008-L38 & 2008-L40 -- P/2008 J2, C/2008 J1, C/2007 B2, C/2005 L3
461SZTE Asteroid Program in Hungary, 1 in MPEC 2008-L40 -- C/2007 K1
E12Siding Spring Survey in New South Wales, 1 in MPEC 2008-L33 -- 2008 EZ97
056Skalnate Pleso Obs. in Slovakia, 2 in MPECs 2008-L37 & 2008-L38 -- P/2008 J2, C/2008 J1
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2008-L40 -- 68P
A97Stammersdorf Obs. in Austria, 3 in MPECs 2008-L37, 2008-L38 & 2008-L40 -- P/2008 J2, C/2008 J1, C/2007 B2
673Table Mtn. Obs. in southern California, 1 in MPEC 2008-L38 -- P/2008 J2
6735Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2008-L33 & 2008-L34 -- 2008 JT35, 2008 HF2
F85Tiki Obs. in Tahiti, 3 in MPECs 2008-L33, 2008-L34 & 2008-L39 -- 2008 JT35, 2008 JJ, C/2008 J6
J70Vega del Thader Obs. in Spain, 2 in MPEC 2008-L40 -- C/2007 B2, C/2006 S5
B42Vitebsk Obs. in Belarus, 2 in MPEC 2008-L40 -- C/2005 L3, 68P
367Yatsuka Obs., 14 in MPECs 2008-L36, 2008-L37, 2008-L38, 2008-L39 & 2008-L40 -- C/2008 J6, P/2008 J2, C/2008 J1, C/2008 H1, C/2007 W3, C/2007 N3, C/2007 G1, C/2007 B2, C/2006 S5, C/2006 Q1, C/2006 OF2, 187P, 79P, 46P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 June '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2034 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 LG2NEODyS16192037-2090144.71e-05-4.71-4.720NEODyS: "Based on 53 optical observations (of which 0 are rejected as outliers) from 2008/06/03.318 to 2008/06/08.954."
JPL Sentry12082038-207784.4e-05-4.73-4.750JPL: "Analysis based on 53 observations spanning 5.6354 days (2008-Jun-03.31737 to 2008-Jun-08.9528)." Diameter approximately 0.029 km. from mean, weighted H=25.3.
2008 LBNEODyS1210206417.63e-10-10.04-10.040NEODyS: "Based on 36 optical observations (of which 0 are rejected as outliers) from 2008/06/01.274 to 2008/06/09.088."
JPL Sentry1208R E M O V E DJPL: Risk listing removed at 0851 UTC.
2008 LANEODyS12092027-2088385.13e-05-3.51-4.020NEODyS: "Based on 38 optical observations (of which 0 are rejected as outliers) from 2008/06/01.170 to 2008/06/08.962."
JPL Sentry12082027-2088305.1e-05-3.52-4.010JPL: "Analysis based on 38 observations spanning 7.7918 days (2008-Jun-01.16922 to 2008-Jun-08.96099)." Diameter approximately 0.076 km. from mean, weighted H=23.3.
2008 KN11NEODyS12102035-204676.83e-07-5.07-5.370NEODyS: "Based on 68 optical observations (of which 0 are rejected as outliers) from 2008/05/30.335 to 2008/06/08.234."
JPL Sentry12082037-204656.9e-07-5.07-5.390JPL: "Analysis based on 68 observations spanning 8.8990 days (2008-May-30.33435 to 2008-Jun-08.233305)." Diameter approximately 0.078 km. from mean, weighted H=23.2.

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 9 June '08

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

2034Grabbed MPEC 2008-L35 - Comet C/2008 G1 (Gibbs) - see above
Grabbed MPEC 2008-L36 - Comet C/2008 H1 (LINEAR) - see above
Grabbed MPEC 2008-L37 - Comet C/2008 J1 (Boattini) - see above
Grabbed MPEC 2008-L38 - Comet P/2008 J2 (Beshore) - see above
Grabbed MPEC 2008-L39 - Comet C/2008 J6 (Hill) - see above
Grabbed MPEC 2008-L40 - Observations of Comets - see above
1619Noted that NEODyS has updated its 2008 LG2 risk assessment - see above
1210Noted that NEODyS has updated its 2008 KN11 risk assessment - see above
Noted that NEODyS has updated its 2008 LB risk assessment - see above
1209Noted that NEODyS has updated its 2008 LA risk assessment - see above
1208Noted that JPL Sentry has updated its 2008 KN11 risk assessment - see above
Noted that JPL Sentry has updated its 2008 LA risk assessment - see above
Noted that JPL Sentry has removed 2008 LB as an impact risk - see above
Noted that JPL Sentry has updated its 2008 LG2 risk assessment - see above
Grabbed MPEC 2008-L33 - Daily Orbit Update - see above
Grabbed MPEC 2008-L34 - 2008 JT35 - see above