Contents  on 22 July '11

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 22 July '11

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty. There were two listings noted earlier today.

New MPECs  on 22 July '11

Minor Planet Electronic Circulars

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


MPEC 2011-O25 - "23:35 UT" - 2011 FX62 = 2005 CC79


MPEC 2011-O24 - "16:57 UT" - Observations and Orbits of Comets


MPEC 2011-O23 - "16:34 UT" - 2011 OE


<< DOU on 22 July '11 >>  MPEC 2011-O22 - "07:08 UT" - Daily Orbit Update


MPEC 2011-O21 - "03:15 UT" - 2010 HA


MPEC 2011-O20 - "03:12 UT" - 2011 FY2


MPEC 2011-O19 - "02:29 UT" - Five New TNOs


MPEC 2011-O18 - "02:15 UT" - 2006 CJ69


MPEC 2011-O17 - "02:11 UT" - 2004 VU130


MPEC 2011-O16 - "02:04 UT" - 2002 CZ248 = 2006 CK69

Observers  on 22 July '11

A total of 41 observers appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 1 in MPEC 2011-O24 -- 27P
J97Alginet Obs. in Spain, 3 in MPEC 2011-O24 -- C/2011 L3, C/2011 A3, 115P
7057Krisztian Sarneczky via Apache Point Obs. in New Mexico, 3 in MPEC 2011-O22 -- 2005 SS1, 2005 SP1, 2005 SB71
H21Astronomical Research Obs. Westfield in Illinois, 11 in MPECs 2011-O22 & 2011-O23 -- 2011 OE, 2011 NZ, 2011 NY, 2011 NV, 2011 NP, 2011 MV1, 2011 MT, 2011 MQ3, 2011 MK, 2007 PU11, 2002 JE9
I99Blanquita Obs. in Spain, 6 in MPEC 2011-O24 -- C/2011 L3, C/2011 A3, C/2009 P1, C/2006 S3, 115P, 45P
807/program code "/" (24) via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2011-O25 -- 2011 FX62
807|Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 3 in MPECs 2011-O21 & 2011-O22 -- 2011 LH, 2011 KO17, 2010 HA
A77Chante-Perdrix Obs. in France, 2 in MPEC 2011-O24 -- 115P, 65P
J01Cielo Profundo Obs. in Spain, 4 in MPEC 2011-O24 -- C/2011 M1, C/2011 L3, C/2009 P1, 45P
958Dax Obs. in France, 17 in MPEC 2011-O24 -- C/2011 L3, C/2011 L1, C/2011 A3, C/2010 S1, C/2010 R1, C/2009 Y1, C/2009 UG89, C/2009 S3, C/2009 P1, C/2008 S3, C/2008 FK75, C/2007 Q3, C/2006 S3, 213P, 115P, 48P, 21P
F65$Ernesto Guido in Italy via Faulkes Telescope North in Hawaii, 1 in MPEC 2011-O24 -- 9P
F65%Tim Lister in southern California via Faulkes Telescope North in Hawaii, 2 in MPECs 2011-O23 & 2011-O24 -- 2011 OE, C/2011 L4
E10Faulkes Telescope South in New South Wales, 1 in MPEC 2011-O24 -- C/2009 F4
B83Gieres Obs. in France, 1 in MPEC 2011-O24 -- C/2011 A3
J95Great Shefford Obs. in England, 1 in MPEC 2011-O22 -- 2011 OA
D88Hiratsuka Obs. in Japan, 4 in MPEC 2011-O24 -- C/2011 F1, C/2009 UG89, 115P, 27P
I16IAA-AI Atacama in Chile, 1 in MPEC 2011-O24 -- P/2011 N1
585Kiev Comet Station in the Ukraine, 2 in MPEC 2011-O24 -- C/2011 F1, C/2010 G2
6959Joel Parker via Kitt Peak Natl. Obs. (KPNO) in Arizona, 7 in MPECs 2011-O16, 2011-O17, 2011-O18 & 2011-O19 -- 2006 CJ69, 2004 VU130, 2004 VF131, 2004 OQ15, 2004 KK19, 2004 HN79, 2002 CZ248
D95Kurihara Obs. in Japan, 4 in MPEC 2011-O24 -- C/2010 S1, C/2010 G2, C/2009 P1, 27P
950/Brett Gladman via La Palma in the Canary Islands, 1 in MPEC 2011-O19 -- 2004 VE131
C29Les Planes de Son Obs. in Spain, 1 in MPEC 2011-O24 -- 45P
C10Maisoncelles Obs. in France, 2 in MPEC 2011-O24 -- C/2009 P1, 213P
232Masquefa Obs. in Spain, 1 in MPEC 2011-O24 -- 115P
5684program code 4 on Mauna Kea in Hawaii, 2 in MPECs 2011-O17 & 2011-O19 -- 2004 VU130, 2004 HN79
568{JJ Kavelaars on Mauna Kea in Hawaii, 6 in MPECs 2011-O16, 2011-O18 & 2011-O19 -- 2006 CJ69, 2004 VF131, 2004 VE131, 2004 OQ15, 2004 KK19, 2002 CZ248
D18Mt. Guizi Obs., 1 in MPEC 2011-O24 -- C/2009 P1
6758Brett Gladman via Mt. Palomar in southern California, 5 in MPECs 2011-O17, 2011-O18 & 2011-O19 -- 2006 CJ69, 2004 VU130, 2004 VF131, 2004 OQ15, 2004 KK19
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2011-O20 -- 2011 FY2
583Odessa-Mayaki Obs. in the Ukraine, 4 in MPEC 2011-O24 -- C/2009 Y1, C/2009 P1, 213P, 78P
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2011-O23 -- 2011 OE
A53Peschiera del Garda Obs. in Italy, 3 in MPEC 2011-O22 -- 2011 KP17, 2011 JP29, 2011 EZ78
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 4 in MPEC 2011-O24 -- C/2009 P1, C/2008 FK75, 213P, 78P
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2011-O22 -- 2011 CG2
H06%Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2011-O24 -- C/2009 P1
H06|Hidetaka Sato in Japan via RAS Obs. Mayhill in New Mexico, 6 in MPEC 2011-O24 -- P/2011 NO1, C/2011 M1, C/2011 L1, C/2011 A3, C/2010 S1, 49P
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 4 in MPEC 2011-O24 -- C/2011 N2, C/2011 L4, C/2010 R1, C/2006 S3
939Rodeno Obs. in Spain, 3 in MPEC 2011-O24 -- C/2011 A3, C/2009 P1, C/2006 S3
C71Sant Marti Sesgueioles Obs., 1 in MPEC 2011-O24 -- C/2011 A3
E12Siding Spring Survey in New South Wales, 1 in MPEC 2011-O22 -- 2011 OB
G68Sierra Stars Obs. in northern California, 2 in MPEC 2011-O24 -- C/2009 P1, C/2006 S3
I93St. Pardon de Conques Obs. in France, 3 in MPEC 2011-O24 -- C/2009 P1, C/2006 S3, 213P
A71Stixendorf Obs. in Austria, 5 in MPEC 2011-O24 -- C/2011 L3, P/2011 JB15, C/2011 A3, C/2009 P1, 27P
B51Vallauris Obs. in France, 5 in MPEC 2011-O24 -- C/2011 L3, C/2009 Y1, C/2006 S3, 78P, 45P
H47Vicksburg Obs. in Mississippi, 6 in MPEC 2011-O24 -- C/2011 L3, C/2009 P1, C/2006 S3, 213P, 48P, 45P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 22 July '11

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 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
2005 SP1JPL Sentry1620R E M O V E DJPL: Risk listing removed at 1053 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 22 July '11

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

2359Grabbed MPEC 2011-O25 - 2011 FX62 = 2005 CC79 - see above
1820Grabbed MPEC 2011-O23 - 2011 OE - see above
Grabbed MPEC 2011-O24 - Observations and Orbits of Comets - see above
Noted that the NEOCP has become empty
1620Noted that JPL Sentry has removed 2005 SP1 as an impact risk - see above
Grabbed MPEC 2011-O22 - Daily Orbit Update - see above
0320Grabbed MPEC 2011-O16 - 2002 CZ248 = 2006 CK69 - see above
Grabbed MPEC 2011-O17 - 2004 VU130 - see above
Grabbed MPEC 2011-O18 - 2006 CJ69 - see above
Grabbed MPEC 2011-O19 - Five New TNOs - see above
Grabbed MPEC 2011-O20 - 2011 FY2 - see above
Grabbed MPEC 2011-O21 - 2010 HA - see above