Contents  on 15 July '10

Note: A/CC news pages will update infrequently for much of the remainder of July.


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 15 July '10

The MPC's NEO Confirmation Page has 10 listings: 8 new, 2 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight new and two updated listings. Of these, one was a "one nighter."

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 15 July '10

Minor Planet Electronic Circulars

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

MPEC 2010-N63 - "15:53 UT" - Comet C/2010 L5 (WISE)

MPEC 2010-N62 - "15:45 UT" - Comet C/2010 L4 (WISE)

MPEC 2010-N61 - "15:40 UT" - Comet P/2010 L1 (WISE)

<< DOU on 15 July '10 >>  MPEC 2010-N60 - "06:16 UT" - Daily Orbit Update

Observers  on 15 July '10

Eighteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 11 in MPEC 2010-N60 -- 2010 NU1, 2010 NK1, 2010 NH, 2010 MN51, 2010 MF1, 2010 LT108, 2010 LA64, 2010 JL77, 2010 GH30, 2010 DJ56, 2003 DA16
160Castelmartini Obs. in Italy, 2 in MPEC 2010-N60 -- 2007 VG189, 241370
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 3 in MPEC 2010-N60 -- 2010 EV45, 2009 XC2, 2009 WC26
A17Guidestar Obs. in Germany, 1 in MPEC 2010-N60 -- 159609
196Homburg-Erbach Obs. in Germany, 1 in MPEC 2010-N60 -- 161998
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2010-N60 -- 2010 LR33
704LINEAR in New Mexico, 8 in MPEC 2010-N60 -- 2010 LE15, 2010 AE, 2002 OS4, 87311, 242211, 230979, 159609, 143381
J75La Sagra Obs. in Spain, 1 in MPEC 2010-N60 -- 7336
A06Mataro Obs. in Spain, 1 in MPEC 2010-N60 -- 85989
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-N60 -- 27002
474Mt. John Obs. in New Zealand, 10 in MPECs 2010-N60, 2010-N61 & 2010-N63 -- 2010 NR1, 2010 NM, 2010 MU111, 2010 MR, 2010 MP1, 2010 MJ1, C/2010 L5, P/2010 L1, 2010 JT34, 2002 BF25
J69North Obs. in England, 1 in MPEC 2010-N60 -- 85989
D90RAS Obs. Moorook in South Australia, 1 in MPEC 2010-N63 -- C/2010 L5
204Schiaparelli Obs. in Italy, 3 in MPEC 2010-N60 -- 2010 FO92, 2009 KD5, 2008 EM9
291Spacewatch 1.8m telescope in Arizona, 2 in MPEC 2010-N60 -- 2010 NH, 2001 QG96
H10Tzec Maun Obs. Mayhill in New Mexico, 3 in MPECs 2010-N60 & 2010-N62 -- C/2010 L4, 2010 EH20, 2010 CJ171
C51WISE in Earth polar orbit, 12 in MPEC 2010-N60 -- 2010 GU21, 2005 YP180, 2005 QC5, 2002 CE26, 88263, 85818, 66008, 232382, 162903, 162483, 5370, 2102
A79Zvezdno Obshtestvo Obs. in Bulgaria, 1 in MPEC 2010-N60 -- 242211
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 15 July '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.





Notes for Today's Latest Risk Assessments
2010 NHJPL Sentry13122077-210741.3e-06-6.45-6.530JPL: "Analysis based on 52 observations spanning 9.8785 days (2010-Jul-04.42235 to 2010-Jul-14.30089)." Diameter approximately 0.025 km. from mean, weighted H=25.6.
NEODyS1312208911.58e-07-7.35-7.350NEODyS: "Based on 52 optical observations (of which 0 are rejected as outliers) from 2010/07/04.423 to 2010/07/14.302."

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 15 July '10

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

2359Grabbed MPEC 2010-N61 - Comet P/2010 L1 (WISE) - see above
Grabbed MPEC 2010-N62 - Comet C/2010 L4 (WISE) - see above
Grabbed MPEC 2010-N63 - Comet C/2010 L5 (WISE) - see above
1312Noted that JPL Sentry has updated its 2010 NH risk assessment - see above
Noted that NEODyS has updated its 2010 NH risk assessment - see above
Grabbed MPEC 2010-N60 - Daily Orbit Update - see above