Contents  on 17 October '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 17 October '11

The MPC's NEO Confirmation Page has 3 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three objects listed. All of these were "one nighters." So far The Tracking News has counted a total of ten listings on the NEOCP 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 17 October '11

Minor Planet Electronic Circulars

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


MPEC 2011-U10 - "22:56 UT" - 2010 VK201


MPEC 2011-U09 - "22:54 UT" - 2010 RF43


MPEC 2011-U08 - "21:55 UT" - 2011 UE


MPEC 2011-U07 - "21:54 UT" - 2011 UD


MPEC 2011-U06 - "11:08 UT" - 2003 MO


<< DOU on 17 Oct. '11 >>  MPEC 2011-U05 - "06:02 UT" - Daily Orbit Update


MPEC 2011-U04 - "01:17 UT" - 2011 UB


MPEC 2011-U03 - "01:15 UT" - 2011 UA

Observers  on 17 October '11

A total of 37 observers appear in today's MPECs.

CodeObserver / observatory
I92Astreo Obs., 1 in MPEC 2011-U05 -- 433
H21Astronomical Research Obs. Westfield in Illinois, 12 in MPEC 2011-U05 -- 2011 TX8, 2011 TN9, 2011 TL5, 2011 TK, 2011 TG2, 2011 TC4, 2011 TA4, 2011 SQ12, 2011 SM68, 2011 SG5, 2011 QP96, 2011 MT
300Bisei Spaceguard Center in Japan, 3 in MPECs 2011-U03, 2011-U07 & 2011-U08 -- 2011 UE, 2011 UD, 2011 UA
703Catalina Sky Survey (CSS) in Arizona, 10 in MPECs 2011-U03, 2011-U04, 2011-U05, 2011-U07 & 2011-U08 -- 2011 UE, 2011 UD, 2011 UB, 2011 UA, 2011 SP68, 2011 HC36, 1991 TF3, 96315, 159368, 4503
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2011-U05 -- 2011 TN9
B50Corner Obs. in Germany, 2 in MPEC 2011-U05 -- 1917, 1036
448Desert Moon Obs. in New Mexico, 3 in MPEC 2011-U05 -- 2011 SU232, 2011 SG16, 2005 NX44
G48Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) in New Mexico, 3 in MPEC 2011-U05 -- 2011 UA, 2011 TN9, 2011 TA4
I19El Gato Gris Obs. in Argentina, 2 in MPEC 2011-U05 -- 2011 TJ, 2011 SM68
595Farra d'Isonzo Obs. in Italy, 3 in MPECs 2011-U03, 2011-U07 & 2011-U08 -- 2011 UE, 2011 UD, 2011 UA
F65$Ernesto Guido in Italy via Faulkes Telescope North in Hawaii, 1 in MPEC 2011-U07 -- 2011 UD
F657Paul Roche in Wales via Faulkes Telescope North in Hawaii, 1 in MPEC 2011-U07 -- 2011 UD
E10Faulkes Telescope South in New South Wales, 1 in MPEC 2011-U03 -- 2011 UA
A17Guidestar Obs. in Germany, 3 in MPECs 2011-U03, 2011-U04 & 2011-U05 -- 2011 UB, 2011 UA, 2011 TK
B86Hagen Obs. in Germany, 1 in MPEC 2011-U03 -- 2011 UA
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2011-U05 -- 2011 SQ12
246KLENOT in the Czech Republic, 3 in MPECs 2011-U05, 2011-U07 & 2011-U08 -- 2011 UE, 2011 UD, 2011 TA4
046Klet Obs. in the Czech Republic, 5 in MPECs 2011-U03, 2011-U05 & 2011-U07 -- 2011 UD, 2011 UA, 2011 SQ12, 2011 SM68, 2011 OQ5
304Las Campanas Obs. in Chile, 2 in MPECs 2011-U09 & 2011-U10 -- 2010 VK201, 2010 RF43
C01Lohrmann Obs. in Germany, 8 in MPEC 2011-U05 -- 37336, 32906, 297418, 283460, 24475, 219071, 137084, 7341
560Madonna di Dossobuono Obs. in Italy, 3 in MPEC 2011-U05 -- 2011 TG2, 2011 TA4, 2011 OV4
B82Maidbronn Obs. in Germany, 2 in MPECs 2011-U03 & 2011-U05 -- 2011 UA, 2011 TN9
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2011-U06 -- 2003 MO
118Modra Obs. in Slovakia, 1 in MPEC 2011-U07 -- 2011 UD
J93Mt. Tuffley Obs. in England, 1 in MPEC 2011-U05 -- 433
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPEC 2011-U05 -- 264993, 223456
H23Pear Tree Obs. in Florida, 1 in MPEC 2011-U05 -- 2011 HC36
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2011-U07 -- 2011 UD
104San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2011-U07 & 2011-U08 -- 2011 UE, 2011 UD
H36Sandlot Obs. in Kansas, 1 in MPEC 2011-U07 -- 2011 UD
204Schiaparelli Obs. in Italy, 4 in MPECs 2011-U03, 2011-U04, 2011-U07 & 2011-U08 -- 2011 UE, 2011 UD, 2011 UB, 2011 UA
510Siegen Obs. in Germany, 1 in MPEC 2011-U03 -- 2011 UA
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2011-U05 -- 90075, 5653
291Spacewatch 1.8m telescope in Arizona, 10 in MPECs 2011-U05 & 2011-U07 -- 2011 UD, 2011 SZ21, 2011 SS67, 2011 SJ189, 2011 SH189, 2011 SF108, 2011 SD25, 2011 RX, 2004 VB, 2001 GR2
I93St. Pardon de Conques Obs. in France, 2 in MPECs 2011-U03 & 2011-U04 -- 2011 UB, 2011 UA
A48Verona Obs. in Italy, 4 in MPEC 2011-U05 -- 2011 SQ12, 2011 PT1, 2011 OV4, 2011 HC36
H47Vicksburg Obs. in Mississippi, 2 in MPEC 2011-U05 -- 2011 TG2, 2005 CJ
G56Walnut Creek Obs. in northern California, 2 in MPEC 2011-U05 -- 2011 TN9, 2011 SQ12
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 17 October '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
2011 TKJPL Sentry1547R E M O V E DJPL: Risk listing removed at 0850 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 17 October '11

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

2310Grabbed MPEC 2011-U07 - 2011 UD - see above
Grabbed MPEC 2011-U08 - 2011 UE - see above
Grabbed MPEC 2011-U09 - 2010 RF43 - see above
Grabbed MPEC 2011-U10 - 2010 VK201 - see above
1547Noted that JPL Sentry has removed 2011 TK as an impact risk - see above
Grabbed MPEC 2011-U05 - Daily Orbit Update - see above
Grabbed MPEC 2011-U06 - 2003 MO - see above
0415Grabbed MPEC 2011-U03 - 2011 UA - see above
Grabbed MPEC 2011-U04 - 2011 UB - see above