Contents  on 17 May '08

Resources:

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 17 May '08

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

When last checked at 2337 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one updated listing. This was a "one nighter."

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 17 May '08

Minor Planet Electronic Circulars

As of last check at 2337 UTC, there have been eight MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2008-K12 - "15:36 UT" - Observations of Comets


MPEC 2008-K11 - "15:28 UT" - Comet C/2008 J6 (Hill)


MPEC 2008-K10 - "15:23 UT" - Comet P/2008 J2 (Beshore)


MPEC 2008-K09 - "15:16 UT" - Comet C/2008 J1 (Boattini)


MPEC 2008-K08 - "15:13 UT" - Comet C/2008 H1 (LINEAR)


MPEC 2008-K07 - "15:09 UT" - Comet C/2008 G1 (Gibbs)


MPEC 2008-K06 - "15:03 UT" - Comet C/2008 E3 (Garradd)


<< DOU on 17 May '08 >>  MPEC 2008-K05 - "06:08 UT" - Daily Orbit Update

Observers  on 17 May '08

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

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 3 in MPECs 2008-K10 & 2008-K12 -- P/2008 J2, C/2007 W1, C/2007 G1
349Ageo Obs. in Japan, 7 in MPECs 2008-K09, 2008-K10, 2008-K11 & 2008-K12 -- C/2008 J6, P/2008 J2, C/2008 J1, C/2007 B2, C/2005 L3, 70P, 46P
J24Altamira Obs., 7 in MPECs 2008-K10 & 2008-K12 -- P/2008 J2, C/2007 G1, C/2007 B2, C/2005 L3, C/2002 VQ94, 187P, 68P
J51Atlante Obs. in the Canary Islands, 5 in MPEC 2008-K12 -- P/2008 G2, C/2007 B2, C/2005 L3, C/2002 VQ94, 68P
467Auckland Obs. in New Zealand, 6 in MPECs 2008-K09 & 2008-K12 -- C/2008 J1, C/2007 W1, C/2006 Q1, C/2006 K4, 26P, 8P
215Buchloe Obs. in Germany, 1 in MPEC 2008-K12 -- C/2008 C1
235CAST Obs. in Italy, 5 in MPEC 2008-K12 -- C/2007 W3, C/2007 B2, C/2006 Q1, C/2005 L3, 187P
B20Carmelita Obs. in Spain, 1 in MPEC 2008-K12 -- C/2007 B2
B66Casasco Obs., 2 in MPECs 2008-K08 & 2008-K10 -- P/2008 J2, C/2008 H1
703Catalina Sky Survey (CSS) in Arizona, 4 in MPECs 2008-K07 & 2008-K12 -- P/2008 G2, C/2008 G1, C/2007 M3, C/2005 L3
A77Chante-Perdrix Obs. in France, 1 in MPEC 2008-K07 -- C/2008 G1
E85Farm Cove Obs., 3 in MPEC 2008-K12 -- C/2008 C1, C/2007 M3, C/2007 B2
H51Greiner Research Obs. (GRO) in Wisconsin, 8 in MPECs 2008-K05, 2008-K11 & 2008-K12 -- 2008 JU2, 2008 JN20, 2008 JJ, C/2008 J6, 2008 EZ97, 2008 EC69, C/2007 G1, 2006 HR29
458Guadarrama Obs. in Spain, 1 in MPEC 2008-K12 -- C/2005 L3
017Hoher List Obs. in Belgium, 1 in MPEC 2008-K10 -- P/2008 J2
987Isle of Man Obs. on the Isle of Man, 1 in MPEC 2008-K12 -- C/2007 B2
415Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2008-K12 -- 186P
585Kiev Comet Station in the Ukraine, 4 in MPECs 2008-K08, 2008-K10 & 2008-K12 -- P/2008 J2, C/2008 H1, C/2007 G1, 68P
704LINEAR in New Mexico, 4 in MPEC 2008-K12 -- C/2007 M3, C/2007 G1, 187P, 68P
J40Malaga Obs. in Spain, 2 in MPEC 2008-K12 -- C/2007 G1, 68P
568Mauna Kea in Hawaii, 2 in MPEC 2008-K12 -- 57P, 6P
118Modra Obs. in Slovakia, 3 in MPECs 2008-K07, 2008-K08 & 2008-K09 -- C/2008 J1, C/2008 H1, C/2008 G1
152Moletai Obs. in Lithuania, 2 in MPEC 2008-K12 -- C/2008 C1, 46P
213Montcabre Obs. in Spain, 1 in MPEC 2008-K10 -- P/2008 J2
945Monte Deva Obs. in Spain, 7 in MPECs 2008-K09 & 2008-K12 -- C/2008 J1, C/2007 G1, C/2007 B2, C/2006 Q1, C/2005 L3, 46P, 26P
900Moriyama Obs. in Japan, 8 in MPECs 2008-K08, 2008-K09, 2008-K10 & 2008-K12 -- P/2008 J2, C/2008 J1, C/2008 H1, C/2007 W1, C/2007 G1, C/2006 Q1, C/2005 L3, 187P
474Mt. John Obs. in New Zealand, 2 in MPEC 2008-K12 -- C/2006 V1, 186P
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2008-K11 -- C/2008 J6
J47Nazaret Obs. in Spain, 11 in MPECs 2008-K07, 2008-K08, 2008-K09 & 2008-K12 -- C/2008 J1, C/2008 H1, C/2008 G1, C/2007 W1, C/2006 Q1, C/2005 L3, C/2002 VQ94, 187P, 68P, 46P, 6P
423North Ryde Obs. in New South Wales, 10 in MPECs 2008-K06, 2008-K10 & 2008-K12 -- P/2008 J2, C/2008 E3, C/2008 A1, C/2007 W1, C/2006 V1, C/2006 Q1, C/2006 K4, 186P, 68P, 8P
224Ottmarsheim Obs. in France, 1 in MPEC 2008-K12 -- 70P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPECs 2008-K09 & 2008-K12 -- C/2008 J1, C/2007 W3, 26P
H06RAS Obs. Mayhill in New Mexico, 4 in MPECs 2008-K10, 2008-K11 & 2008-K12 -- C/2008 J6, P/2008 J2, C/2007 G1, C/2005 L3
473Remanzacco Obs. in Italy, 1 in MPEC 2008-K08 -- C/2008 H1
204Schiaparelli Obs. in Italy, 1 in MPEC 2008-K12 -- 57P
E12Siding Spring Survey (SSS) in New South Wales, 6 in MPECs 2008-K05, 2008-K06 & 2008-K12 -- C/2008 E3, C/2008 A1, C/2006 V1, C/2006 Q1, C/2006 K4, 2005 WD1
510Siegen Obs. in Germany, 5 in MPECs 2008-K09, 2008-K10 & 2008-K12 -- P/2008 J2, C/2008 J1, C/2007 G1, C/2007 B2, C/2005 L3
291Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2008-K05 -- 2008 JV2, 2008 JS26, 2008 JL24, 2008 HU4, 2007 XH16, 2007 MC4
A97Stammersdorf Obs. in Austria, 1 in MPEC 2008-K10 -- P/2008 J2
629Szeged Obs. in Hungary, 2 in MPEC 2008-K12 -- C/2005 L3, C/2002 VQ94
B51Vallauris Obs. in France, 1 in MPEC 2008-K10 -- P/2008 J2
H47Vicksburg Obs. in Mississippi, 6 in MPEC 2008-K12 -- C/2007 W1, C/2007 G1, C/2007 B2, C/2006 Q1, C/2005 L3, C/2002 VQ94
B42Vitebsk Obs. in Belarus, 5 in MPECs 2008-K08 & 2008-K12 -- C/2008 H1, P/2008 G2, C/2005 L3, 187P, 68P
367Yatsuka Obs., 6 in MPECs 2008-K10, 2008-K11 & 2008-K12 -- C/2008 J6, P/2008 J2, C/2007 W1, C/2007 G1, 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 17 May '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2337 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 JD33NEODyS15072012-2090969.84e-07-7.49-7.870NEODyS: "Based on 14 optical observations (of which 1 are rejected as outliers) from 2008/05/15.288 to 2008/05/15.399."
2008 JL24JPL Sentry1506209113.8e-07-9.06-9.060JPL: "Analysis based on 84 observations spanning 5.0008 days (2008-May-11.25353 to 2008-May-16.25433)." Diameter approximately 0.004 km. from mean, weighted H=29.6.
2008 HU4NEODyS15072056-2089221.91e-04-5.76-6.090NEODyS: "Based on 47 optical observations (of which 0 are rejected as outliers) from 2008/04/30.325 to 2008/05/16.304."
JPL Sentry15062077-2086112.0e-04-5.73-6.110JPL: "Analysis based on 47 observations spanning 15.979 days (2008-Apr-30.32444 to 2008-May-16.30357)." Diameter approximately 0.007 km. from mean, weighted H=28.3.

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 17 May '08

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

1715Grabbed MPEC 2008-K06 - Comet C/2008 E3 (Garradd) - see above
Grabbed MPEC 2008-K07 - Comet C/2008 G1 (Gibbs) - see above
Grabbed MPEC 2008-K08 - Comet C/2008 H1 (LINEAR) - see above
Grabbed MPEC 2008-K09 - Comet C/2008 J1 (Boattini) - see above
Grabbed MPEC 2008-K10 - Comet P/2008 J2 (Beshore) - see above
Grabbed MPEC 2008-K11 - Comet C/2008 J6 (Hill) - see above
Grabbed MPEC 2008-K12 - Observations of Comets - see above
1507Noted that NEODyS has updated its 2008 HU4 risk assessment - see above
1506Noted that JPL Sentry has updated its 2008 HU4 risk assessment - see above
Noted that NEODyS has posted 2008 JD33 as an impact risk - see above
Noted that JPL Sentry has updated its 2008 JL24 risk assessment - see above
Grabbed MPEC 2008-K05 - Daily Orbit Update - see above