Contents  on 5 July '10


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 5 July '10

The MPC's NEO Confirmation Page has 10 listings: 5 new, 5 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five new and five updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of sixteen 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 5 July '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-N16 - "17:52 UT" - 2010 NH

MPEC 2010-N15 - "17:46 UT" - 2010 NG

MPEC 2010-N14 - "16:38 UT" - 2010 MU112

<< DOU on 5 July '10 >>  MPEC 2010-N13 - "06:11 UT" - Daily Orbit Update

MPEC 2010-N12 - "04:51 UT" - Comet P/2010 H5 (Scotti)

MPEC 2010-N11 - "00:39 UT" - 2010 MU111

Observers  on 5 July '10

Nineteen observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2010-N13 -- 2010 NB
H21Astronomical Research Obs. Westfield in Illinois, 3 in MPECs 2010-N14, 2010-N15 & 2010-N16 -- 2010 NH, 2010 NG, 2010 MU112
A81Balzaretto Obs. in Italy, 1 in MPEC 2010-N13 -- 161998
703Catalina Sky Survey (CSS) in Arizona, 2 in MPEC 2010-N13 -- 2007 LL, 159609
G58Chabot Obs. in northern California, 2 in MPEC 2010-N13 -- 2010 MW1, 2010 LT108
157Frasso Sabino Obs. in Italy, 4 in MPEC 2010-N13 -- 2010 NA, 2010 EH20, 2008 EM9, 2007 ML13
J95Great Shefford Obs. in England, 3 in MPECs 2010-N13, 2010-N15 & 2010-N16 -- 2010 NH, 2010 NG, 2010 NB
J87La Canada Obs. in Spain, 1 in MPEC 2010-N15 -- 2010 NG
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-N13 -- 2010 KB61
474Mt. John Obs. in New Zealand, 1 in MPEC 2010-N12 -- P/2010 H5
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2010-N13, 2010-N15 & 2010-N16 -- 2010 NH, 2010 NG, 2010 EV45, 18109, 137170
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 3 in MPECs 2010-N11, 2010-N13 & 2010-N15 -- 2010 NG, 2010 MU111, 2010 MS1
473Remanzacco Obs. in Italy, 1 in MPEC 2010-N16 -- 2010 NH
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2010-N15 & 2010-N16 -- 2010 NH, 2010 NG
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2010-N13 -- 2010 FO92, 137802
291Spacewatch 1.8m telescope in Arizona, 3 in MPECs 2010-N12 & 2010-N13 -- 2010 LU108, P/2010 H5, 2009 SP171
6734Mike Hicks via Table Mtn. Obs. in southern California, 1 in MPEC 2010-N15 -- 2010 NG
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2010-N13 -- 85989
C51WISE in Earth polar orbit, 11 in MPECs 2010-N11, 2010-N13 & 2010-N14 -- 2010 MU112, 2010 MU111, 2010 FZ80, 2010 FY80, 2010 FX80, 2010 FG81, 2010 FA81, 90367, 230111, 163243, 138847
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 5 July '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.





Notes for Today's Latest Risk Assessments
2010 NHJPL Sentry20002077-210751.5e-06-6.24-6.430JPL: "Analysis based on 22 observations spanning .95956 days (2010-Jul-04.42235 to 2010-Jul-05.38191)." Diameter approximately 0.028 km. from mean, weighted H=25.5.
2010 MU112JPL Sentry19002026-2108151.3e-08-5.27-5.780JPL: "Analysis based on 14 observations spanning 4.2958 days (2010-Jun-30.07214 to 2010-Jul-04.367898)." Diameter approximately 0.230 km. from mean, weighted H=20.8.
2010 MS1JPL Sentry1500R E M O V E DJPL: Risk listing removed at 0953 UTC.
2010 LU108NEODyS1500R E M O V E D-

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 5 July '10

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

2000Noted that JPL Sentry has posted 2010 NH as an impact risk - see above
1900Noted that JPL Sentry has posted 2010 MU112 as an impact risk - see above
Grabbed MPEC 2010-N15 - 2010 NG - see above
Grabbed MPEC 2010-N16 - 2010 NH - see above
1704Grabbed MPEC 2010-N14 - 2010 MU112 - see above
1500Noted that NEODyS has removed 2010 LU108 as an impact risk - see above
Noted that JPL Sentry has removed 2010 MS1 as an impact risk - see above
Grabbed MPEC 2010-N13 - Daily Orbit Update - see above
0533Grabbed MPEC 2010-N12 - Comet P/2010 H5 (Scotti) - see above
0100Grabbed MPEC 2010-N11 - 2010 MU111 - see above