Contents  on 2 June '08

Resources:

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 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-L13 - "12:11 UT" - 2008 LE


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


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


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


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


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


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


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


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


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


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

Observers  on 2 June '08

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

CodeObserver / observatory
349Ageo 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
J24Altamira Obs. in Spain, 1 in MPEC 2008-L06 -- C/2008 A1
B37Ametlla del Valles Obs. in Spain, 5 in MPEC 2008-L06 -- C/2007 M2, C/2007 D1, C/2007 B2, C/2005 L3, 199P
J51Atlante 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
467Auckland 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
215Buchloe Obs. in Germany, 1 in MPEC 2008-L06 -- C/2007 D1
235CAST Obs. in Italy, 6 in MPEC 2008-L06 -- C/2007 B2, C/2005 L3, 68P, 46P, 7P, 6P
B66Casasco 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
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2008-L04 -- C/2008 J1
448Desert Moon Obs. in New Mexico, 1 in MPEC 2008-L07 -- 2008 HO3
E85Farm Cove Obs. in New Zealand, 3 in MPECs 2008-L05 & 2008-L06 -- P/2008 J2, C/2008 C1, C/2008 A1
F654Jim Bedient in Hawaii via Faulkes Telescope North in Hawaii, 3 in MPECs 2008-L08, 2008-L09 & 2008-L11 -- 2008 LC, 2008 LA, 2008 KV28
442Gualba Obs. in Spain, 1 in MPEC 2008-L06 -- C/2005 L3
J39Ingenio Obs. in the Canary Islands, 2 in MPECs 2008-L05 & 2008-L06 -- P/2008 J2, C/2007 B2
415Kambah 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
585Kiev Comet Station in the Ukraine, 4 in MPEC 2008-L06 -- C/2007 M2, C/2005 L3, 180P, 7P
704LINEAR 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
844Los Molinos Obs. in Uruguay, 1 in MPEC 2008-L06 -- C/2007 N3
J40Malaga Obs. in Spain, 2 in MPEC 2008-L06 -- C/2007 B2, 6P
118Modra Obs. in Slovakia, 1 in MPEC 2008-L04 -- C/2008 J1
J45Montana Cabreja Obs. in the Canary Islands, 2 in MPECs 2008-L04 & 2008-L05 -- P/2008 J2, C/2008 J1
213Montcabre Obs. in Spain, 2 in MPECs 2008-L04 & 2008-L06 -- C/2008 J1, 7P
900Moriyama 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
474Mt. John Obs. in New Zealand, 1 in MPEC 2008-L06 -- 99P
G96Mt. 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
D81Nagano Obs., 1 in MPEC 2008-L06 -- 7P
J47Nazaret 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
423North Ryde Obs. in New South Wales, 3 in MPEC 2008-L06 -- C/2008 E3, C/2006 V1, 186P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 2 in MPECs 2008-L04 & 2008-L06 -- C/2008 J1, C/2005 L3
H06RAS Obs. Mayhill in New Mexico, 2 in MPECs 2008-L05 & 2008-L06 -- P/2008 J2, C/2006 OF2
939Rodeno Obs. in Spain, 4 in MPEC 2008-L06 -- C/2007 G1, C/2007 B2, C/2005 L3, 46P
461SZTE Asteroid Program (SZTE) in Hungary, 2 in MPECs 2008-L04 & 2008-L06 -- C/2008 J1, C/2005 S4
204Schiaparelli Obs. in Italy, 2 in MPEC 2008-L06 -- C/2008 C1, 172P
E12Siding Spring Survey in New South Wales, 1 in MPEC 2008-L06 -- 47P
691Spacewatch 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
291Spacewatch 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
A97Stammersdorf Obs. in Austria, 2 in MPECs 2008-L04 & 2008-L05 -- P/2008 J2, C/2008 J1
F85Tiki Obs. in Tahiti, 2 in MPECs 2008-L06 & 2008-L07 -- 2008 KX2, C/2007 W1
A82Trieste Obs. in Italy, 1 in MPEC 2008-L06 -- C/2005 L3
H10Tzec Maun Obs. in New Mexico, 1 in MPEC 2008-L06 -- 7P
B42Vitebsk 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
648Winer Obs. in Arizona, 1 in MPEC 2008-L07 -- 2008 HS3
367Yatsuka 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 LBJPL Sentry14192021-2101263.8e-06-5.48-6.020JPL: "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 LAJPL Sentry15582011-21073417.8e-06-4.17-5.130JPL: "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 KZ5NEODyS14202018-2086208.23e-07-3.64-4.280NEODyS: "Based on 54 optical observations (of which 1 are rejected as outliers) from 2008/05/29.229 to 2008/06/01.376."
JPL Sentry14192013-21041081.8e-06-3.36-4.020JPL: "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 HU4NEODyS14202073-208677.88e-06-7.12-7.440NEODyS: "Based on 61 optical observations (of which 0 are rejected as outliers) from 2008/04/30.325 to 2008/06/01.297."
JPL Sentry14192076-207924.6e-06-7.35-7.460JPL: "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.

1558Noted that JPL Sentry has posted 2008 LA as an impact risk - see above
1420Noted 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
1419Noted 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
0128Grabbed MPEC 2008-L06 - Observations of Comets - see above
0017Grabbed 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