Contents  on 23 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 23 May '10

The MPC's NEO Confirmation Page has 7 listings: 4 new, 3 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and three updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of eleven 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 23 May '10

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been four MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-K46 - "21:26 UT" - 2010 KK37


MPEC 2010-K45 - "21:24 UT" - 2010 KJ37


MPEC 2010-K44 - "20:39 UT" - 2010 JV153


<< DOU on 23 May '10 >>  MPEC 2010-K43 - "06:11 UT" - Daily Orbit Update

Observers  on 23 May '10

A total of 28 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 14 in MPECs 2010-K43, 2010-K45 & 2010-K46 -- 2010 KP10, 2010 KO10, 2010 KK37, 2010 KJ37, 2010 KB8, 2010 JN71, 2010 JL77, 2010 JL41, 2010 JK41, 2010 JH88, 2010 JG88, 2010 JF88, 2010 GH30, 2010 DJ56
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2010-K43 -- 2010 JV34
175Bagnoud Obs. in France, 1 in MPEC 2010-K43 -- 2004 JX20
B88Bigmuskie Obs. in Italy, 1 in MPEC 2010-K43 -- 2004 TB18
703Catalina Sky Survey (CSS) in Arizona, 4 in MPECs 2010-K43 & 2010-K46 -- 2010 KK37, 52750, 163243, 136874
448Desert Moon Obs. in New Mexico, 4 in MPEC 2010-K43 -- 2010 JK41, 2010 JK33, 2010 JF88, 2009 XE11
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2010-K46 -- 2010 KK37
B86Hagen Obs. in Germany, 1 in MPEC 2010-K43 -- 2010 KO10
J75La Sagra Obs. in Spain, 1 in MPEC 2010-K43 -- 237442
H01Magdalena Ridge Obs. (MRO) in New Mexico, 2 in MPEC 2010-K43 -- 2010 KO10, 2010 JU39
A06Mataro Obs. in Spain, 2 in MPEC 2010-K43 -- 12923, 4055
B67Mirasteilas Obs. in Switzerland, 2 in MPEC 2010-K43 -- 2009 VO24, 18109
213Montcabre Obs. in Spain, 1 in MPEC 2010-K43 -- 2010 JV34
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2010-K43, 2010-K45 & 2010-K46 -- 2010 KQ, 2010 KK37, 2010 KJ37, 2005 GB120, 6050
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPEC 2010-K43 -- 2010 JV34, 2009 UV18, 2000 HD74
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2010-K45 & 2010-K46 -- 2010 KK37, 2010 KJ37
H36Sandlot Obs. in Kansas, 1 in MPEC 2010-K43 -- 2010 KR10
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-K43 -- 2010 KQ
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2010-K43 & 2010-K44 -- 2010 JV153, 2000 EF104
291Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2010-K43 -- 2010 KQ10, 2010 KP10, 2010 JK33, 2010 JG87, 2010 JE88, 2010 GT7, 2010 EH20
611Starkenburg Obs. in Germany, 1 in MPEC 2010-K43 -- 2010 KO10
926Tenagra II Obs. in Arizona, 4 in MPEC 2010-K43 -- 2010 KP10, 2010 KD, 2010 KB8, 2010 KA8
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-K46 -- 2010 KK37
G72University Hills Obs. in southern California, 1 in MPEC 2010-K43 -- 2010 FC81
A48Verona Obs. in Italy, 1 in MPEC 2010-K43 -- 2010 FC81
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2010-K43 -- 2009 KD5
C51WISE in Earth polar orbit, 7 in MPEC 2010-K43 -- 2006 EE1, 2005 WE, 26760, 232382, 230118, 164121, 6178
198Wildberg Obs. in Germany, 2 in MPECs 2010-K43 & 2010-K46 -- 2010 KO10, 2010 KK37
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 23 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 KJ37JPL Sentry23582024-2108551.6e-07-6.14-6.620JPL: "Analysis based on 20 observations spanning .17020 days (2010-May-23.18476 to 2010-May-23.35496)." Diameter approximately 0.055 km. from mean, weighted H=24.0.
2010 KR10JPL Sentry16082025-2105253.9e-07-3.87-4.170JPL: "Analysis based on 18 observations spanning 1.9500 days (2010-May-20.44123 to 2010-May-22.39125)." Diameter approximately 0.368 km. from mean, weighted H=19.8.
2010 KQ10JPL Sentry16082025-2101131.3e-07-4.59-4.990JPL: "Analysis based on 18 observations spanning 2.0148 days (2010-May-20.41696 to 2010-May-22.43171)." Diameter approximately 0.205 km. from mean, weighted H=21.1.
2010 KQJPL Sentry1608R E M O V E D-
2010 JE88JPL Sentry1608204119.1e-10-6.83-6.830JPL: "Analysis based on 76 observations spanning 8.0230 days (2010-May-14.24843 to 2010-May-22.27146)." Diameter approximately 0.170 km. from mean, weighted H=21.5.
2010 JU39JPL Sentry1608R E M O V E DJPL: Risk listing removed at 1004 UTC.

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 23 May '10

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

2358Noted that JPL Sentry has posted 2010 KJ37 as an impact risk - see above
2200Grabbed MPEC 2010-K45 - 2010 KJ37 - see above
Grabbed MPEC 2010-K46 - 2010 KK37 - see above
2104Grabbed MPEC 2010-K44 - 2010 JV153 - see above
1608Noted that JPL Sentry has updated its 2010 JE88 risk assessment - see above
Noted that JPL Sentry has removed 2010 JU39 as an impact risk - see above
Noted that JPL Sentry has removed 2010 KQ as an impact risk - see above
Noted that JPL Sentry has updated its 2010 KQ10 risk assessment - see above
Noted that JPL Sentry has updated its 2010 KR10 risk assessment - see above
Grabbed MPEC 2010-K43 - Daily Orbit Update - see above