Contents  on 3 January '11

Resources:

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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 3 January '11

The MPC's NEO Confirmation Page has 6 listings: 4 new, 2 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and two updated listings. Of these, four were "one nighters." The Tracking News counted a total of ten listings on the NEOCP at some point on this day.

New MPECs  on 3 January '11

Minor Planet Electronic Circulars

There were three MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2011-A08 - "23:49 UT" - Observations and Orbits of Comets


MPEC 2011-A07 - "19:13 UT" - 1999 XK136


<< DOU on 3 Jan. '11 >>  MPEC 2011-A06 - "07:10 UT" - Daily Orbit Update

Observers  on 3 January '11

A total of 63 observers appeared in this day's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2011-A08 -- C/2010 B1
349Ageo Obs. in Japan, 11 in MPEC 2011-A08 -- C/2010 X1, P/2010 WK, P/2010 W1, P/2010 V3, P/2010 V1, C/2009 Y1, C/2005 L3, 203P, 123P, 43P, 9P
J24Altamira Obs. in the Canary Islands, 10 in MPEC 2011-A08 -- C/2010 X1, P/2010 WK, P/2010 W1, C/2010 B1, C/2009 K5, 241P, 240P, 123P, 103P, 10P
H21Astronomical Research Obs. Westfield in Illinois, 39 in MPECs 2011-A06, 2011-A07 & 2011-A08 -- 2010 YW, 2010 YS, 2010 YR, 2010 YH, 2010 YD, 2010 XZ72, 2010 XY72, 2010 XY, 2010 XW58, 2010 XT45, 2010 XR45, 2010 XR10, 2010 XN56, 2010 XK52, 2010 XG3, 2010 XC25, 2010 XC24, 2010 XC11, 2010 XB24, 2010 WZ8, 2010 WQ7, 2010 WL, 2010 WJ, 2010 WH, 2010 WD9, 2010 WB9, 2010 VZ, 2010 VL1, 2010 VA76, 2010 SA12, 2010 RO82, 2010 LR68, 2008 WH60, C/2007 Q3, 2007 EM88, 2006 WY2, 2005 CF41, 2000 AD205, 1999 XK136
432Boambee Obs. in New South Wales, 5 in MPEC 2011-A06 -- 2006 VB14, 68350, 7482, 5869, 2102
B59Borken Obs. in Germany, 2 in MPEC 2011-A08 -- P/2010 WK, C/2010 B1
J02Busot Obs. in Spain, 1 in MPEC 2011-A08 -- C/2009 K5
235CAST Obs. in Italy, 6 in MPEC 2011-A08 -- P/2010 WK, P/2010 V3, C/2009 Y1, C/2009 K5, 123P, 10P
B20Carmelita Obs. in Spain, 1 in MPEC 2011-A08 -- C/2010 B1
160Castelmartini Obs. in Italy, 29 in MPECs 2011-A06 & 2011-A08 -- 2010 YS, 2010 YB, 2010 XP51, 2010 XG3, P/2010 WK, P/2010 W1, 2010 VK188, P/2010 V3, P/2010 V1, P/2010 U2, 2010 TP54, C/2010 S1, 2010 RF181, 2010 LR68, C/2010 KW7, 2010 JL33, C/2010 G2, C/2010 B1, C/2009 K5, C/2008 S3, C/2007 VO53, 240P, 236P, 223P, 219P, 123P, 103P, 29P, 10P
703Catalina Sky Survey (CSS) in Arizona, 22 in MPECs 2011-A06, 2011-A07 & 2011-A08 -- 2010 XR45, 2010 XP51, 2010 WZ8, 2010 WP8, P/2010 W1, P/2010 V3, 2010 OQ1, 2010 NW117, 2007 EJ, 1999 XR35, 1999 XK136, 1999 PJ1, 86324, 40267, 22771, 164121, 159467, 137062, 3102, 241P, 236P, 117P
470Ceccano Obs. in Italy, 1 in MPEC 2011-A08 -- P/2010 WK
A77Chante-Perdrix Obs. in France, 15 in MPEC 2011-A08 -- C/2010 X1, P/2010 WK, P/2010 W1, P/2010 V3, P/2010 V1, P/2010 T2, C/2010 KW7, C/2010 B1, C/2009 Y1, C/2007 N3, 219P, 123P, 88P, 29P, 10P
J01Cielo Profundo Obs. in Spain, 8 in MPEC 2011-A08 -- P/2010 W1, C/2010 S1, C/2010 B1, C/2009 K5, 240P, 123P, 103P, 29P
958Dax Obs. in France, 15 in MPEC 2011-A08 -- P/2010 WK, P/2010 V3, P/2010 U2, C/2010 S1, C/2010 B1, C/2009 Y1, C/2009 K5, C/2008 S3, C/2008 FK75, 240P, 223P, 123P, 103P, 29P, 10P
H20Eastern Illinois Univ. Obs. in Illinois, 12 in MPEC 2011-A06 -- 2010 WP8, 2010 NW117, 2010 JL33, 2007 MK13, 2007 EJ, 2006 WY2, 2006 OG15, 2004 YZ23, 2003 YO3, 2002 OS4, 2000 AC6, 1999 XR35
157Frasso Sabino Obs. in Italy, 1 in MPEC 2011-A08 -- P/2010 WK
372Geisei Obs. in Japan, 7 in MPEC 2011-A08 -- C/2010 X1, P/2010 WK, P/2010 V3, P/2010 V1, C/2010 U3, P/2010 U1, C/2009 T1
E16Grove Creek Obs. in New South Wales, 3 in MPEC 2011-A08 -- C/2010 FB87, C/2010 B1, 103P
355Hadano Obs. in Japan, 2 in MPEC 2011-A08 -- P/2010 WK, P/2010 V3
379Hamamatsu-Yuto Obs. in Japan, 4 in MPECs 2011-A06 & 2011-A08 -- 2010 JL33, 2007 EM88, 2002 OS4, 103P
D88Hiratsuka Obs. in Japan, 11 in MPEC 2011-A08 -- P/2010 WK, P/2010 V3, C/2010 S1, C/2010 B1, C/2009 Y1, C/2009 K5, C/2008 S3, 240P, 123P, 103P, 10P
H15ISON-NM Obs. in New Mexico, 4 in MPECs 2011-A06 & 2011-A08 -- C/2010 X1, 2010 LR68, 2003 MJ4, 88P
J28Jaen Obs. in Spain, 1 in MPEC 2011-A08 -- 240P
585Kiev Comet Station in the Ukraine, 2 in MPEC 2011-A08 -- 29P, 10P
D95Kurihara Obs. in Japan, 9 in MPEC 2011-A08 -- P/2010 WK, P/2010 V3, P/2010 V1, C/2010 G2, C/2010 B1, C/2009 Y1, C/2009 P1, C/2009 K5, 43P
704LINEAR in New Mexico, 5 in MPEC 2011-A08 -- P/2010 WK, P/2010 V3, C/2005 L3, 223P, 123P
212La Dehesilla Obs. in Spain, 3 in MPEC 2011-A08 -- C/2010 B1, C/2009 K5, 103P
J38La Vara Obs. in Spain, 9 in MPEC 2011-A08 -- C/2010 S1, C/2010 B1, C/2009 Y1, C/2009 K5, 240P, 123P, 103P, 29P, 10P
H11LightBuckets Obs. Rodeo in New Mexico, 1 in MPEC 2011-A07 -- 1999 XK136
844Los Molinos Obs. in Uruguay, 1 in MPEC 2011-A08 -- 103P
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2011-A07 -- 1999 XK136
B82Maidbronn Obs. in Germany, 6 in MPEC 2011-A08 -- C/2010 S1, C/2010 B1, C/2009 Y1, C/2009 K5, 240P, 123P
118Modra Obs. in Slovakia, 2 in MPEC 2011-A08 -- P/2010 WK, P/2010 V3
213Montcabre Obs. in Spain, 7 in MPEC 2011-A08 -- P/2010 WK, P/2010 V3, C/2010 S1, C/2009 Y1, 240P, 123P, 10P
900Moriyama Obs. in Japan, 18 in MPEC 2011-A08 -- C/2010 X1, P/2010 WK, P/2010 V3, C/2010 S1, C/2010 KW7, C/2010 G2, C/2010 B1, C/2009 Y1, C/2009 K5, C/2008 S3, C/2005 L3, 241P, 240P, 223P, 123P, 103P, 31P, 29P
G96Mt. Lemmon Survey (MLS) in Arizona, 4 in MPECs 2011-A06 & 2011-A08 -- 2010 XD11, C/2010 KW7, 144411, 5626
566NEAT's GEODSS Haleakala telescope in Hawaii, 4 in MPEC 2011-A08 -- C/1998 M1, C/1997 A1, 183P, 139P
644NEAT's Mt. Palomar telescope in southern California, 2 in MPEC 2011-A08 -- C/1999 T2, C/1999 N4
608NEAT's USAF Haleakala telescope in Hawaii, 3 in MPEC 2011-A08 -- C/1999 N4, C/1999 F1, 63P
A13Naef Obs. in Switzerland, 3 in MPEC 2011-A06 -- 2010 WE9, 2010 VK188, 2004 BW1
J47Nazaret Obs. in Spain, 2 in MPEC 2011-A08 -- 219P, 10P
C23Olmen Obs. in Belgium, 4 in MPEC 2011-A08 -- C/2010 B1, C/2009 Y1, 240P, 123P
D92Osaki Obs. in Japan, 1 in MPEC 2011-A08 -- 123P
A32Panker Obs. in Germany, 1 in MPEC 2011-A08 -- 10P
B49Paus Obs. in Spain, 4 in MPEC 2011-A08 -- C/2010 KW7, C/2009 K5, 240P, 123P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2011-A08 -- C/2010 X1, P/2010 WK, P/2010 V3, C/2010 B1, 240P, 103P, 29P
H06#M. Suzuki via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2011-A08 -- P/2010 V1
H06`E. Bryssinck via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2011-A07 -- 1999 XK136
C17Roget Obs., 1 in MPEC 2011-A08 -- C/2009 K5
C09Rouet Obs. in France, 1 in MPEC 2011-A08 -- C/2010 B1
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2011-A07 -- 1999 XK136
H36Sandlot Obs. in Kansas, 6 in MPECs 2011-A06 & 2011-A07 -- 2010 YS, 2010 YH, 2010 XB24, 2010 VY139, 2010 QE2, 1999 XK136
204Schiaparelli Obs. in Italy, 17 in MPECs 2011-A06, 2011-A07 & 2011-A08 -- 2010 YW, 2010 YS, 2010 XE25, P/2010 W1, P/2010 V1, C/2010 B1, C/2009 K5, 2009 DV42, C/2007 G1, C/2005 L3, 2005 GW119, 2003 BA21, 1999 XK136, 246P, 223P, 88P, 31P
E12Siding Spring Survey (SSS) in New South Wales, 5 in MPEC 2011-A06 -- 2006 VB14, 68350, 177651, 159609, 10563
587Sormano Obs. in Italy, 4 in MPECs 2011-A06 & 2011-A08 -- 2010 XZ67, 2010 XX58, 2010 XG3, P/2010 WK
291Spacewatch 1.8m telescope in Arizona, 10 in MPEC 2011-A06 -- 2010 XR10, 2010 XQ69, 2010 XN25, 2010 XM69, 2010 VA76, 2010 UE7, 2010 TS149, 2010 RC130, 2006 KV89, 2005 XE1
A71Stixendorf Obs. in Austria, 8 in MPEC 2011-A08 -- P/2010 W1, P/2010 V3, C/2010 S1, C/2010 B1, C/2009 P1, 240P, 123P, 10P
C35Terrassa Obs., 1 in MPEC 2011-A08 -- 240P
B18Terskol Obs. in Russia, 1 in MPEC 2011-A08 -- C/2010 X1
H10Tzec Maun Obs. Mayhill in New Mexico, 11 in MPEC 2011-A08 -- C/2010 X1, P/2010 V3, C/2010 B1, C/2009 Y1, C/2009 K5, 240P, 223P, 123P, 103P, 29P, 10P
D96Tzec Maun Obs. Moorook in South Australia, 8 in MPEC 2011-A08 -- C/2010 FB87, C/2010 B1, C/2010 A4, C/2009 P1, C/2009 F4, 103P, 65P, 10P
H47Vicksburg Obs. in Mississippi, 10 in MPEC 2011-A08 -- C/2010 B1, C/2009 P1, C/2009 K5, C/2008 S3, 240P, 203P, 123P, 103P, 29P, 10P
I15Wishing Star Obs. in Rhode Island, 1 in MPEC 2011-A08 -- P/2010 V3
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 3 January '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 (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 YDJPL Sentry1555205212.0e-08-8.48-8.480JPL: "Analysis based on 29 observations spanning 8.0614 days (2010-Dec-25.37287 to 2011-Jan-02.43423)." Diameter approximately 0.016 km. from mean, weighted H=26.6.
NEODyS15552090-209016.7e-09-9.25-9.250NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2010-12-25.374 to 2011-01-02.435."
2010 XW58JPL Sentry15552014-2103156.6e-06-4.79-5.380JPL: "Analysis based on 22 observations spanning 21.989 days (2010-Dec-11.47391 to 2011-Jan-02.463282)." Diameter approximately 0.039 km. from mean, weighted H=24.7.
NEODyS15552018-2090326.62e-06-4.92-5.290NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2010-12-11.475 to 2011-01-02.464."
2010 XC25JPL Sentry15552048-205544.3e-06-3.18-3.240JPL: "Analysis based on 62 observations spanning 25.113 days (2010-Dec-08.37716 to 2011-Jan-02.48981)." Diameter approximately 0.240 km. from mean, weighted H=20.7.
NEODyS15552048-207074.24e-06-3.18-3.250NEODyS: "Based on 63 optical observations (of which 1 are rejected as outliers) from 2010-12-08.378 to 2011-01-02.491."

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 3 January '11

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

2359Grabbed MPEC 2011-A08 - Observations and Orbits of Comets - see above
2000Grabbed MPEC 2011-A07 - 1999 XK136 - see above
1555Noted that JPL Sentry has updated its 2010 XC25 risk assessment - see above
Noted that NEODyS has updated its 2010 XC25 risk assessment - see above
Noted that JPL Sentry has updated its 2010 XW58 risk assessment - see above
Noted that NEODyS has updated its 2010 XW58 risk assessment - see above
Noted that JPL Sentry has reposted 2010 YD as an impact risk - see above
Noted that NEODyS has posted 2010 YD as an impact risk - see above
Grabbed MPEC 2011-A06 - Daily Orbit Update - see above