Contents  on 8 June '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 8 June '10

The MPC's NEO Confirmation Page has 16 listings: 12 new, 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had twelve new and four updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of 21 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 8 June '10

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been nine MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-L46 - "21:30 UT" - Comet P/2010 L1 (WISE)


MPEC 2010-L45 - "18:52 UT" - Comets C/2009 U7, 2009 U8, 2009 U9, 2009 U10, 2009 U11, 2009 U12 (SOHO)


MPEC 2010-L44 - "18:45 UT" - Comets C/2009 T8, 2009 T9, 2009 T10, 2009 T11, 2009 T12, 2009 T13 (SOHO)


MPEC 2010-L43 - "18:38 UT" - Comets C/2009 T4, 2009 T5, 2009 T6, 2009 T7 (SOHO)


MPEC 2010-L42 - "18:16 UT" - Comets C/2009 S9, 2009 S10, 2009 S11, 2009 S12 (SOHO)


MPEC 2010-L41 - "12:01 UT" - 2010 KK127


MPEC 2010-L40 - "11:47 UT" - 2010 EJ104


<< DOU on 8 June '10 >>  MPEC 2010-L39 - "06:09 UT" - Daily Orbit Update


MPEC 2010-L38 - "03:27 UT" - 2010 KZ39

Observers  on 8 June '10

Thirteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 8 in MPEC 2010-L39 -- 2010 JU39, 2010 JM41, 2010 JK41, 2010 JF87, 2010 JF, 2010 FY80, 2010 DJ56, 153814
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-L39 -- 2010 LF
F65Faulkes Telescope North in Hawaii, 1 in MPEC 2010-L46 -- P/2010 L1
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2010-L39 -- 2010 KQ
157Frasso Sabino Obs. in Italy, 2 in MPEC 2010-L39 -- 2010 EH20, 2009 WC26
196Homburg-Erbach Obs. in Germany, 4 in MPEC 2010-L39 -- 2010 GA34, 2009 KD5, 85818, 237442
695Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2010-L46 -- P/2010 L1
J75La Sagra Obs. in Spain, 1 in MPEC 2010-L39 -- 2003 NZ6
304Las Campanas Obs. in Chile, 1 in MPEC 2010-L38 -- 2010 KZ39
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-L39 -- 2010 FY80
H36Sandlot Obs. in Kansas, 1 in MPEC 2010-L39 -- 2010 LJ14
2492LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 19 in MPECs 2010-L42, 2010-L43, 2010-L44 & 2010-L45 -- C/2009 U9, C/2009 U8, C/2009 U7, C/2009 U12, C/2009 U11, C/2009 U10, C/2009 T9, C/2009 T8, C/2009 T7, C/2009 T6, C/2009 T5, C/2009 T4, C/2009 T13, C/2009 T12, C/2009 T11, C/2009 T10, C/2009 S12, C/2009 S11, C/2009 S10
2493LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 13 in MPECs 2010-L42, 2010-L43, 2010-L44 & 2010-L45 -- C/2009 U9, C/2009 U12, C/2009 U11, C/2009 U10, C/2009 T8, C/2009 T5, C/2009 T13, C/2009 T12, C/2009 T11, C/2009 T10, C/2009 S9, C/2009 S11, C/2009 S10
291Spacewatch 1.8m telescope in Arizona, 3 in MPECs 2010-L39 & 2010-L46 -- P/2010 L1, 2010 KB61, 2010 JG87
C51WISE in Earth polar orbit, 3 in MPECs 2010-L40, 2010-L41 & 2010-L46 -- P/2010 L1, 2010 KK127, 2010 EJ104
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 8 June '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
153814 2001 WN5NEODyS14302106-212244.05e-10-6.47-6.750NEODyS: "Based on 212 optical observations (of which 4 are rejected as outliers) from 1996/02/10.397 to 2010/06/07.202."

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 8 June '10

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

2215Grabbed MPEC 2010-L46 - Comet P/2010 L1 (WISE) - see above
2032Grabbed MPEC 2010-L43 - Comets C/2009 T4, 2009 T5, 2009 T6, 2009 T7 (SOHO) - see above
Grabbed MPEC 2010-L44 - Comets C/2009 T8, 2009 T9, 2009 T10, 2009 T11, 2009 T12, 2009 T13 (SOHO) - see above
Grabbed MPEC 2010-L45 - Comets C/2009 U7, 2009 U8, 2009 U9, 2009 U10, 2009 U11, 2009 U12 (SOHO) - see above
1840Grabbed MPEC 2010-L42 - Comets C/2009 S9, 2009 S10, 2009 S11, 2009 S12 (SOHO) - see above
1430Noted that NEODyS has updated its 153814 2001 WN5 risk assessment - see above
Grabbed MPEC 2010-L39 - Daily Orbit Update - see above
Grabbed MPEC 2010-L40 - 2010 EJ104 - see above
Grabbed MPEC 2010-L41 - 2010 KK127 - see above
0428Grabbed MPEC 2010-L38 - 2010 KZ39 - see above