Contents  on 18 January '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 18 January '10

The MPC's NEO Confirmation Page has 5 listings: 3 new, 2 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and two updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of seven 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 18 January '10

Minor Planet Electronic Circulars

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

MPEC 2010-B08 - "23:25 UT" - 2010 BQ

<< DOU on 18 Jan. '10 >>  MPEC 2010-B07 - "07:11 UT" - Daily Orbit Update

Observers  on 18 January '10

Eighteen observing facilities appear in today's MPECs.

CodeObserver / observatory
703Catalina Sky Survey (CSS) in Arizona, 9 in MPEC 2010-B07 -- 2009 WE253, 2009 UV18, 99248, 229007, 226198, 219527, 20790, 137924, 4055
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2010-B08 -- 2010 BQ
143Gnosca Obs. in Switzerland, 1 in MPEC 2010-B08 -- 2010 BQ
J95Great Shefford Obs. in England, 2 in MPEC 2010-B07 -- 2010 BB, 2010 AF40
E16Grove Creek Obs. in New South Wales, 1 in MPEC 2010-B08 -- 2010 BQ
704LINEAR in New Mexico, 6 in MPECs 2010-B07 & 2010-B08 -- 2010 BQ, 96590, 162998, 105141, 4486, 1627
844Los Molinos Obs. in Uruguay, 1 in MPEC 2010-B07 -- 2008 XM
H01Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPEC 2010-B07 -- 2010 BB, 2010 AN61, 2010 AF30
B82Maidbronn Obs. in Germany, 1 in MPEC 2010-B07 -- 2010 AL30
900Moriyama Obs. in Japan, 1 in MPEC 2010-B07 -- 2010 AN61
G96Mt. Lemmon Survey (MLS) in Arizona, 11 in MPEC 2010-B07 -- 2009 WO6, 2009 WF104, 2007 YV56, 2006 AO4, 2002 XM90, 85184, 219527, 172718, 138937, 5626, 1916
A13Naef Obs. in Switzerland, 5 in MPECs 2010-B07 & 2010-B08 -- 2010 BQ, 2007 MK13, 2001 QH142, 217013, 10165
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2010-B07 -- 10165
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-B07 -- 2010 BC
E12Siding Spring Survey (SSS) in New South Wales, 12 in MPEC 2010-B07 -- 2009 XO2, 2009 QJ9, 2006 WY2, 2005 TY51, 2003 FJ1, 2002 WP, 85818, 55408, 27346, 161989, 152742, 5626
291Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2010-B07 -- 2010 AM2, 2010 AL, 2010 AK2, 2010 AK, 2010 AJ, 2010 AE, 1999 VF22
926Tenagra II Obs. in Arizona, 9 in MPEC 2010-B07 -- 2010 AO2, 2010 AN60, 2010 AL60, 2010 AJ3, 2010 AG3, 2010 AE40, 2010 AE30, 2009 XH8, 2009 SQ172
H53Thompsonville Obs. in Illinois, 5 in MPEC 2010-B07 -- 218863, 214088, 5626, 3552, 433
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 January '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. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few 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 BBJPL Sentry1503R E M O V E DJPL: Risk listing removed at 1040 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 18 January '10

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

2359Grabbed MPEC 2010-B08 - 2010 BQ - see above
1503Noted that JPL Sentry has removed 2010 BB as an impact risk - see above
Grabbed MPEC 2010-B07 - Daily Orbit Update - see above