Contents  on 5 May '10

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 5 May '10

The MPC's NEO Confirmation Page has 15 listings: 11 new, 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eleven new and four updated listings. Of these, seven were "one nighters." So far The Tracking News has counted a total of 22 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 5 May '10

Minor Planet Electronic Circulars

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


MPEC 2010-J21 - "15:09 UT" - 2010 JG


MPEC 2010-J20 - "15:07 UT" - 2010 JF


MPEC 2010-J19 - "15:04 UT" - 2010 JE


MPEC 2010-J18 - "15:01 UT" - 2010 HR80


MPEC 2010-J17 - "14:58 UT" - 2010 HQ80


<< DOU on 5 May '10 >>  MPEC 2010-J16 - "06:07 UT" - Daily Orbit Update

Observers  on 5 May '10

A total of 25 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 19 in MPECs 2010-J16, 2010-J19, 2010-J20 & 2010-J21 -- 2010 JG, 2010 JF, 2010 JE, 2010 HS20, 2010 HG20, 2010 GX23, 2010 GW62, 2010 GU6, 2010 GU21, 2010 GT7, 2010 GR75, 2010 GM65, 2010 GA34, 2010 FP, 2010 EV45, 2010 DE, 2010 BZ4, 2000 EF104, 1999 JR6
703Catalina Sky Survey (CSS) in Arizona, 27 in MPECs 2010-J16, 2010-J20 & 2010-J21 -- 2010 JG, 2010 JF, 2010 FC81, 2009 UV18, 2008 LW8, 2005 ED318, 2004 JG6, 2002 NP1, 2002 JR100, 2000 CO101, 88254, 85839, 85628, 234061, 232382, 163243, 162998, 161989, 142464, 138013, 11398, 11066, 6050, 4055, 3691, 3554, 1627
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2010-J21 -- 2010 JG
448Desert Moon Obs. in New Mexico, 3 in MPEC 2010-J16 -- 2010 HG20, 2010 GR75, 2005 LG8
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-J16 -- 2010 GU21
735George Obs. in Texas, 1 in MPEC 2010-J16 -- 1685
J95Great Shefford Obs. in England, 2 in MPEC 2010-J16 -- 2010 GU21, 2010 FA81
704LINEAR in New Mexico, 4 in MPEC 2010-J16 -- 2005 GB120, 237551, 4055, 3671
844Los Molinos Obs. in Uruguay, 1 in MPEC 2010-J21 -- 2010 JG
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-J16 -- 2010 FC81
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2010-J19 -- 2010 JE
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-J21 -- 2010 JG
473Remanzacco Obs. in Italy, 1 in MPEC 2010-J16 -- 2010 GU21
H11Rodeo Obs. in New Mexico, 3 in MPECs 2010-J16, 2010-J20 & 2010-J21 -- 2010 JG, 2010 JF, 2010 JA
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2010-J20 & 2010-J21 -- 2010 JG, 2010 JF
H36Sandlot Obs. in Kansas, 4 in MPECs 2010-J16, 2010-J19, 2010-J20 & 2010-J21 -- 2010 JG, 2010 JF, 2010 JE, 2002 JR100
D21Shenton Park Obs. in Western Australia, 3 in MPECs 2010-J16, 2010-J20 & 2010-J21 -- 2010 JG, 2010 JF, 2010 FA81
E12Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2010-J16 -- 2007 VG189, 68063, 5653
691Spacewatch 0.9m telescope in Arizona, 10 in MPECs 2010-J16, 2010-J19, 2010-J20 & 2010-J21 -- 2010 JG, 2010 JF, 2010 JE, 2008 LW8, 2006 QS, 2006 KV86, 2000 EF104, 1999 RH33, 85628, 140928
291Spacewatch 1.8m telescope in Arizona, 11 in MPECs 2010-J16, 2010-J17, 2010-J18 & 2010-J19 -- 2010 JE, 2010 HR80, 2010 HQ80, 2010 GX62, 2010 GR33, 2010 GN67, 2010 GL23, 2010 GF30, 2010 EQ43, 2010 CN1, 2009 JO2
926Tenagra II Obs. in Arizona, 4 in MPECs 2010-J16, 2010-J19 & 2010-J20 -- 2010 JF, 2010 JE, 2010 HD33, 2002 JR100
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-J21 -- 2010 JG
D96Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-J21 -- 2010 JG
C51WISE in Earth polar orbit, 2 in MPECs 2010-J17 & 2010-J18 -- 2010 HR80, 2010 HQ80
G56Walnut Creek Obs. in northern California, 1 in MPEC 2010-J16 -- 2010 GA34
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 5 May '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 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 HQ80JPL Sentry17062022-21101248.4e-07-3.37-4.600JPL: "Analysis based on 17 observations spanning 10.136 days (2010-Apr-25.02829 to 2010-May-05.16437)." Diameter approximately 0.371 km. from mean, weighted H=19.8.
2010 HS20JPL Sentry16082030-210136.3e-06-4.15-4.190JPL: "Analysis based on 39 observations spanning 13.958 days (2010-Apr-20.41913 to 2010-May-04.377326)." Diameter approximately 0.075 km. from mean, weighted H=23.3.
NEODyS16082030-206736.58e-06-4.15-4.210NEODyS: "Based on 39 optical observations (of which 0 are rejected as outliers) from 2010/04/20.420 to 2010/05/04.378."

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 5 May '10

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

1706Noted that JPL Sentry has posted 2010 HQ80 as an impact risk - see above
1608Noted that JPL Sentry has updated its 2010 HS20 risk assessment - see above
Noted that NEODyS has updated its 2010 HS20 risk assessment - see above
Grabbed MPEC 2010-J16 - Daily Orbit Update - see above
Grabbed MPEC 2010-J17 - 2010 HQ80 - see above
Grabbed MPEC 2010-J18 - 2010 HR80 - see above
Grabbed MPEC 2010-J19 - 2010 JE - see above
Grabbed MPEC 2010-J20 - 2010 JF - see above
Grabbed MPEC 2010-J21 - 2010 JG - see above