Contents  on 25 May '10

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 25 May '10

The MPC's NEO Confirmation Page has 11 listings: 8 new, 3 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight new and three updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of thirteen listings on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs  on 25 May '10

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been six MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-K61 - "22:13 UT" - 2010 JK124


MPEC 2010-K60 - "21:14 UT" - 2010 JJ124


MPEC 2010-K59 - "20:39 UT" - 2010 AQ81


<< DOU on 25 May '10 >>  MPEC 2010-K58 - "06:09 UT" - Daily Orbit Update


MPEC 2010-K57 - "02:00 UT" - 2010 KY39


MPEC 2010-K56 - "01:56 UT" - 2010 JC170

Observers  on 25 May '10

Seventeen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 13 in MPEC 2010-K58 -- 2010 KQ10, 2010 KP10, 2010 KK37, 2010 KD, 2010 JN71, 2010 JM41, 2010 JL77, 2010 JK41, 2010 JH87, 2010 JG88, 2010 GA34, 2010 CL18, 2006 QA58
J51Atlante Obs. in the Canary Islands, 3 in MPEC 2010-K58 -- 2010 JV34, 2010 FC81, 85818
160Castelmartini Obs. in Italy, 1 in MPEC 2010-K58 -- 2010 JV34
703Catalina Sky Survey (CSS) in Arizona, 6 in MPEC 2010-K58 -- 2010 JK41, 2010 JF88, 85818, 237442, 230979, 7839
J95Great Shefford Obs. in England, 1 in MPEC 2010-K58 -- 2010 KQ
304Las Campanas Obs. in Chile, 2 in MPECs 2010-K60 & 2010-K61 -- 2010 JK124, 2010 JJ124
H13Lenomiya Obs. in Arizona, 1 in MPEC 2010-K58 -- 2010 JV34
5682David Tholen's team on Mauna Kea in Hawaii, 2 in MPEC 2010-K58 -- 2010 FB81, 2010 DH56
B67Mirasteilas Obs. in Switzerland, 3 in MPEC 2010-K58 -- 2010 CL18, 2009 KD5, 2003 NZ6
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2010-K58 -- 2010 JO33
H36Sandlot Obs. in Kansas, 1 in MPEC 2010-K58 -- 2010 JV34
510Siegen Obs. in Germany, 1 in MPEC 2010-K58 -- 2010 KO10
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-K57 -- 2010 KY39
291Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2010-K58 -- 2010 KR10, 2010 KQ10, 2010 KP10
A48Verona Obs. in Italy, 1 in MPEC 2010-K58 -- 2010 JV34
C51WISE in Earth polar orbit, 3 in MPECs 2010-K56, 2010-K57 & 2010-K59 -- 2010 KY39, 2010 JC170, 2010 AQ81
198Wildberg Obs. in Germany, 1 in MPEC 2010-K58 -- 2010 EV45
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 25 May '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 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.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
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
2010 KV39NEODyS14422042-2090277.45e-06-6.13-6.360NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2010/05/24.372 to 2010/05/24.944."
JPL Sentry01142037-2101295.3e-06-6.23-6.720JPL: "Analysis based on 20 observations spanning .57146 days (2010-May-24.37134 to 2010-May-24.9428)." Diameter approximately 0.015 km. from mean, weighted H=26.7.
2010 KR10JPL Sentry1442208115.1e-07-4.12-4.120JPL: "Analysis based on 21 observations spanning 4.0213 days (2010-May-20.44123 to 2010-May-24.46251)." Diameter approximately 0.340 km. from mean, weighted H=20.0.
NEODyS14422027-208146.18e-07-3.74-4.070NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2010/05/20.442 to 2010/05/24.463."
2010 KQ10JPL Sentry1442205915.7e-09-6.33-6.330JPL: "Analysis based on 26 observations spanning 4.0288 days (2010-May-20.41696 to 2010-May-24.44572)." Diameter approximately 0.180 km. from mean, weighted H=21.4.
NEODyS14422059-208325.29e-09-6.40-6.470NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2010/05/20.418 to 2010/05/24.446."
2010 KQJPL Sentry1818R E M O V E DJPL #2 for the day
2010 JC170JPL Sentry05422021-21091485.3e-07-4.76-5.560JPL: "Analysis based on 13 observations spanning 1.3893 days (2010-May-15.98532 to 2010-May-17.37458)." Diameter approximately 0.130 km. from mean, weighted H=22.1.

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 25 May '10

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

2237Grabbed MPEC 2010-K61 - 2010 JK124 - see above
2140Grabbed MPEC 2010-K59 - 2010 AQ81 - see above
Grabbed MPEC 2010-K60 - 2010 JJ124 - see above
1818Noted that JPL Sentry has removed 2010 KQ as an impact risk - see above
1442Noted that JPL Sentry has reposted 2010 KQ as an impact risk - see above
Noted that JPL Sentry has updated its 2010 KQ10 risk assessment - see above
Noted that NEODyS has updated its 2010 KQ10 risk assessment - see above
Noted that JPL Sentry has updated its 2010 KR10 risk assessment - see above
Noted that NEODyS has updated its 2010 KR10 risk assessment - see above
Noted that NEODyS has posted 2010 KV39 as an impact risk - see above
Grabbed MPEC 2010-K58 - Daily Orbit Update - see above
0542Noted that JPL Sentry has posted 2010 JC170 as an impact risk - see above
0214Grabbed MPEC 2010-K56 - 2010 JC170 - see above
Grabbed MPEC 2010-K57 - 2010 KY39 - see above
0114Noted that JPL Sentry has posted 2010 KV39 as an impact risk - see above