Emily Lakdawalla montage of all visited minor objects. 
Credit: Numerous missions & imaging teams.

This montage by Emily Lakdawalla, in its large full version with or without text, shows the image and relative size of every asteroid and comet visited by space missions to date -- eight solitary asteroids, one asteroid with a satellite, and four comet nuclei. The big rock is the just visited Main Belter, 21 Lutetia, and the smallest object, NEO 25143 Itokawa, doesn't show in this thumbnail. Credit: Numerous NASA and ESA space missions and imaging teams.


Contents  on 19 July '10

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

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 19 July '10

The MPC's NEO Confirmation Page has 10 listings: 6 new, 4 updated

When last checked at 2208 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six new and four updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of fourteen 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 19 July '10

Minor Planet Electronic Circulars

As of last check at 2208 UTC, there have been five MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-O11 - "17:12 UT" - 2010 OB


MPEC 2010-O10 - "14:07 UT" - Observations of Comets


<< DOU on 19 July '10 >>  MPEC 2010-O09 - "06:11 UT" - Daily Orbit Update


MPEC 2010-O08 - "03:26 UT" - 2010 OA


MPEC 2010-O07 - "03:20 UT" - 2010 NG3

Observers  on 19 July '10

A total of 57 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 2 in MPEC 2010-O10 -- C/2006 W3, 65P
H21Astronomical Research Obs. Westfield in Illinois, 2 in MPECs 2010-O08 & 2010-O11 -- 2010 OB, 2010 OA
A81Balzaretto Obs. in Italy, 1 in MPEC 2010-O09 -- 161998
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2010-O11 -- 2010 OB
I99Blanquita Obs. in Spain, 2 in MPEC 2010-O10 -- C/2008 FK75, C/2006 S3
B96Brixiis Obs. in Belgium, 7 in MPEC 2010-O10 -- C/2010 J2, C/2010 G2, C/2008 FK75, C/2006 S3, C/2006 Q1, 103P, 10P
215Buchloe Obs. in Germany, 1 in MPEC 2010-O10 -- C/2005 L3
B20Carmelita Obs. in Spain, 1 in MPEC 2010-O10 -- 10P
160Castelmartini Obs. in Italy, 11 in MPECs 2010-O09 & 2010-O10 -- P/2010 J3, C/2010 J2, P/2010 H2, 2009 WC26, C/2009 UG89, C/2006 S3, 2006 KL21, 242211, 159609, 3752, 81P
A77Chante-Perdrix Obs. in France, 4 in MPEC 2010-O10 -- C/2008 FK75, 103P, 65P, 10P
850Cordell-Lorenz Obs. in Tennessee, 4 in MPEC 2010-O10 -- C/2010 J2, C/2009 S3, 237P, 65P
448Desert Moon Obs. in New Mexico, 2 in MPEC 2010-O09 -- 2010 EX119, 2006 QS
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 5 in MPECs 2010-O09 & 2010-O11 -- 2010 OB, 2010 MF1, 2010 JF88, 2010 EC135, 2009 WC26
372Geisei Obs. in Japan, 2 in MPEC 2010-O10 -- C/2009 UG89, C/2009 P2
A17Guidestar Obs. in Germany, 2 in MPECs 2010-O09 & 2010-O11 -- 2010 OB, 161998
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2010-O09 -- 2010 EH20
D88Hiratsuka Obs. in Japan, 7 in MPECs 2010-O08 & 2010-O10 -- 2010 OA, C/2010 J2, C/2008 FK75, C/2006 S3, 103P, 65P, 10P
196Homburg-Erbach Obs. in Germany, 2 in MPECs 2010-O10 & 2010-O11 -- 2010 OB, 103P
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2010-O09 -- 9202
682Kanab Obs. in Utah, 1 in MPEC 2010-O09 -- 2010 NB2
585Kiev Comet Station in the Ukraine, 3 in MPEC 2010-O10 -- C/2009 K5, C/2008 FK75, C/2007 Q3-A
D95Kurihara Obs. in Japan, 2 in MPEC 2010-O10 -- C/2009 K5, 10P
704LINEAR in New Mexico, 8 in MPECs 2010-O09, 2010-O10 & 2010-O11 -- 2010 OB, C/2010 J2, C/2009 UG89, 2007 ML13, 85989, 242191, 241370, 141851
J87La Canada Obs. in Spain, 2 in MPECs 2010-O08 & 2010-O10 -- 2010 OA, C/2010 J2
J75La Sagra Obs. in Spain, 2 in MPEC 2010-O09 -- 87311, 230979
J38La Vara Obs. in Spain, 1 in MPEC 2010-O10 -- C/2008 FK75
J59Linceo Obs. in Spain, 2 in MPEC 2010-O10 -- C/2010 J2, 65P
5682David Tholen's team on Mauna Kea in Hawaii, 2 in MPECs 2010-O07 & 2010-O09 -- 2010 NT1, 2010 NG3
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2010-O09 -- 2006 BN6
213Montcabre Obs. in Spain, 7 in MPEC 2010-O10 -- C/2010 J2, C/2010 G2, C/2008 FK75, C/2007 Q3-A, 158P, 65P, 10P
945Monte Deva Obs. in Spain, 9 in MPEC 2010-O10 -- P/2010 J3, C/2009 K5, C/2008 FK75, C/2007 Q3-A, C/2006 S3, C/2006 Q1, 81P, 65P, 10P
B06Montseny Obs. in Spain, 2 in MPEC 2010-O10 -- C/2010 J2, 103P
900Moriyama Obs. in Japan, 13 in MPECs 2010-O08 & 2010-O10 -- 2010 OA, C/2009 P2, C/2008 P1, C/2008 FK75, C/2007 VO53, C/2007 Q3-A, C/2006 W3, C/2006 S3, C/2006 Q1, 103P, 81P, 65P, 10P
A13Naef Obs. in Switzerland, 3 in MPECs 2010-O09, 2010-O10 & 2010-O11 -- 2010 OB, C/2009 P2, 23187
D81Nagano Obs. in Japan, 2 in MPEC 2010-O10 -- C/2008 FK75, C/2007 Q3-A
C23Olmen Obs. in Belgium, 5 in MPEC 2010-O10 -- C/2010 J2, C/2008 FK75, C/2006 S3, 103P, 10P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 4 in MPEC 2010-O10 -- C/2010 J2, C/2008 FK75, C/2007 VO53, C/2006 Q1
561Piszkesteto Sta. in Hungary, 5 in MPEC 2010-O10 -- P/2010 A5, C/2009 Y1, C/2009 T3, C/2009 S3, C/2009 P2
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2010-O11 -- 2010 OB
J53Posadas Obs. in Spain, 1 in MPEC 2010-O10 -- C/2005 L3
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-O10 -- 10P
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 2 in MPECs 2010-O07 & 2010-O08 -- 2010 OA, 2010 NG3
473Remanzacco Obs. in Italy, 2 in MPECs 2010-O10 & 2010-O11 -- 2010 OB, P/2010 H2
939Rodeno Obs. in Spain, 3 in MPEC 2010-O10 -- C/2008 FK75, C/2007 Q3-A, 81P
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2010-O10 -- C/2010 J2
H36Sandlot Obs. in Kansas, 1 in MPEC 2010-O11 -- 2010 OB
B74Santa Maria de Montmagastrell Obs. in Spain, 3 in MPEC 2010-O10 -- C/2008 FK75, C/2007 VO53, 103P
204Schiaparelli Obs. in Italy, 10 in MPECs 2010-O10 & 2010-O11 -- 2010 OB, P/2010 J3, C/2010 G2, P/2010 A5, C/2008 P1, 126P, 103P, 81P, 65P, 10P
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-O08 -- 2010 OA
A71Stixendorf Obs. in Austria, 7 in MPEC 2010-O10 -- C/2010 J2, C/2009 UG89, C/2009 P2, C/2008 FK75, 103P, 65P, 10P
B01Taunus Obs. in Germany, 3 in MPEC 2010-O10 -- C/2009 K5, 103P, 10P
H10Tzec Maun Obs. Mayhill in New Mexico, 9 in MPEC 2010-O10 -- C/2010 J2, C/2009 P2, C/2008 P1, C/2007 VO53, C/2006 S3, 237P, 158P, 103P, 10P
D96Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-O10 -- C/2006 W3
C51WISE in Earth polar orbit, 3 in MPECs 2010-O07 & 2010-O10 -- 2010 NG3, 234P, 48P
198Wildberg Obs. in Germany, 2 in MPECs 2010-O09 & 2010-O11 -- 2010 OB, 2010 LE15
367Yatsuka Obs. in Japan, 9 in MPEC 2010-O10 -- P/2010 H2, C/2008 FK75, C/2007 Q3-A, C/2006 S3, 126P, 103P, 81P, 65P, 10P
A79Zvezdno Obshtestvo Obs. in Bulgaria, 2 in MPEC 2010-O10 -- C/2006 S3, 10P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 19 July '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2208 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 NB2NEODyS1215202318.08e-11-7.14-7.140NEODyS: "Based on 25 optical observations (of which 1 are rejected as outliers) from 2010/07/10.316 to 2010/07/17.985."

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 19 July '10

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

2208Grabbed MPEC 2010-O11 - 2010 OB - see above
1415Grabbed MPEC 2010-O10 - Observations of Comets - see above
1215Noted that NEODyS has posted 2010 NB2 as an impact risk - see above
Grabbed MPEC 2010-O09 - Daily Orbit Update - see above
0344Grabbed MPEC 2010-O07 - 2010 NG3 - see above
Grabbed MPEC 2010-O08 - 2010 OA - see above