Contents  on 16 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 16 May '10

The MPC's NEO Confirmation Page has 11 listings: 11 updated

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

New MPECs  on 16 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-K06 - "19:57 UT" - Comet C/2010 J4 (WISE)


MPEC 2010-K05 - "15:11 UT" - 2010 JH88


MPEC 2010-K04 - "15:08 UT" - 2010 JG88


MPEC 2010-K03 - "15:04 UT" - 2010 JF88


MPEC 2010-K02 - "14:59 UT" - 2010 JE88


<< DOU on 16 May '10 >>  MPEC 2010-K01 - "06:10 UT" - Daily Orbit Update

Observers  on 16 May '10

A total of 26 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 2 in MPECs 2010-K04 & 2010-K05 -- 2010 JH88, 2010 JG88
B20Carmelita Obs. in Spain, 1 in MPEC 2010-K03 -- 2010 JF88
703Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2010-K01, 2010-K03, 2010-K04 & 2010-K05 -- 2010 JN71, 2010 JH88, 2010 JG88, 2010 JF88, 152889
J01Cielo Profundo Obs. in Spain, 3 in MPECs 2010-K03, 2010-K04 & 2010-K05 -- 2010 JH88, 2010 JG88, 2010 JF88
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPECs 2010-K02, 2010-K03, 2010-K04 & 2010-K05 -- 2010 JH88, 2010 JG88, 2010 JF88, 2010 JE88
A27Eridanus Obs. in Germany, 1 in MPEC 2010-K01 -- 218863
372Geisei Obs. in Japan, 1 in MPEC 2010-K02 -- 2010 JE88
651Grasslands Obs. in Arizona, 4 in MPECs 2010-K02, 2010-K03, 2010-K04 & 2010-K05 -- 2010 JH88, 2010 JG88, 2010 JF88, 2010 JE88
J95Great Shefford Obs. in England, 3 in MPECs 2010-K01, 2010-K04 & 2010-K05 -- 2010 JO33, 2010 JH88, 2010 JG88
I96Hyperion Obs. in Spain, 1 in MPEC 2010-K02 -- 2010 JE88
J28Jaen Obs. in Spain, 2 in MPECs 2010-K02 & 2010-K04 -- 2010 JG88, 2010 JE88
704LINEAR in New Mexico, 5 in MPECs 2010-K01, 2010-K02 & 2010-K04 -- 2010 JV34, 2010 JG88, 2010 JE88, 2000 HD74, 85839
H13Lenomiya Obs. in Arizona, 1 in MPEC 2010-K01 -- 2010 JN71
H01Magdalena Ridge Obs. (MRO) in New Mexico, 5 in MPECs 2010-K01, 2010-K02, 2010-K03, 2010-K04 & 2010-K05 -- 2010 JU39, 2010 JH88, 2010 JG88, 2010 JF88, 2010 JE88
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-K01 -- 2010 JE87
900Moriyama Obs. in Japan, 2 in MPECs 2010-K02 & 2010-K04 -- 2010 JG88, 2010 JE88
G96Mt. Lemmon Survey (MLS) in Arizona, 4 in MPECs 2010-K02, 2010-K03, 2010-K04 & 2010-K05 -- 2010 JH88, 2010 JG88, 2010 JF88, 2010 JE88
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 3 in MPECs 2010-K03, 2010-K04 & 2010-K05 -- 2010 JH88, 2010 JG88, 2010 JF88
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-K06 -- C/2010 J4
H06.Cristovao Jacques in Brazil via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-K04 -- 2010 JG88
J41Raheny Obs. in Ireland, 2 in MPECs 2010-K04 & 2010-K05 -- 2010 JH88, 2010 JG88
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-K01 -- 1036
291Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2010-K01 -- 2010 JL33, 2010 HD33, 2010 GR75, 2009 JO2, 85818, 153814
926Tenagra II Obs. in Arizona, 2 in MPECs 2010-K02 & 2010-K04 -- 2010 JG88, 2010 JE88
H10Tzec Maun Obs. Mayhill in New Mexico, 4 in MPECs 2010-K02, 2010-K03, 2010-K04 & 2010-K05 -- 2010 JH88, 2010 JG88, 2010 JF88, 2010 JE88
G56Walnut Creek Obs. in northern California, 2 in MPECs 2010-K02 & 2010-K04 -- 2010 JG88, 2010 JE88
367Yatsuka Obs. in Japan, 1 in MPEC 2010-K06 -- C/2010 J4
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 16 May '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2359 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 JE88JPL Sentry17392041-207939.9e-07-4.00-4.010JPL: "Analysis based on 51 observations spanning 2.2919 days (2010-May-14.24843 to 2010-May-16.54031)." Diameter approximately 0.170 km. from mean, weighted H=21.5.
2010 JF87NEODyS15552025-2085351.07e-08-4.66-5.460NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2010/05/11.782 to 2010/05/15.417."
2010 JU39JPL Sentry15552035-21091074.1e-06-2.32-2.490JPL: "Analysis based on 26 observations spanning 6.0510 days (2010-May-09.33998 to 2010-May-15.39102)." Diameter approximately 0.440 km. from mean, weighted H=19.4.
2010 JL33JPL Sentry1555206614.9e-10-5.56-5.560JPL: "Analysis based on 41 observations spanning 8.9582 days (2010-May-06.36978 to 2010-May-15.32801)." Diameter approximately 1.200 km. from mean, weighted H=17.3.
NEODyS1555206615.42e-10-5.30-5.300NEODyS: "Based on 41 optical observations (of which 0 are rejected as outliers) from 2010/05/06.371 to 2010/05/15.329."
153814 2001 WN5NEODyS15552106-212233.03e-10-6.59-6.820NEODyS: "Based on 194 optical observations (of which 4 are rejected as outliers) from 1996/02/10.397 to 2010/05/16.221."

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 16 May '10

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

2152Grabbed MPEC 2010-K06 - Comet C/2010 J4 (WISE) - see above
1739Noted that JPL Sentry has posted 2010 JE88 as an impact risk - see above
1555Noted that NEODyS has updated its 153814 2001 WN5 risk assessment - see above
Noted that NEODyS has posted 2010 JF87 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 JL33 risk assessment - see above
Noted that NEODyS has reposted 2010 JL33 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 JU39 risk assessment - see above
Grabbed MPEC 2010-K01 - Daily Orbit Update - see above
Grabbed MPEC 2010-K02 - 2010 JE88 - see above
Grabbed MPEC 2010-K03 - 2010 JF88 - see above
Grabbed MPEC 2010-K04 - 2010 JG88 - see above
Grabbed MPEC 2010-K05 - 2010 JH88 - see above