Contents  on 27 May '13

Asteroid/Comet Connection (A/CC) 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.

Traffic Report  on 27 May '13

Two objects reported inside ten LD

Two asteroids are reported to be within ten lunar distances (LD) of our planet today. 2013 KT1 is outbound from 7.70 to 8.90 LD and 2013 KB from 7.83 to 9.23 LD. Approaching our neighborhood next, 2009 FE arrives inside ten LD on June 2nd.

This report was generated at 1417 UTC with observation in today's DOU MPEC of 2013 KT1 and distant 68216 2001 CV26.

Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Object distances are interpreted by A/CC from JPL Horizons data. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

NEOCP Activity  on 27 May '13

The MPC's NEO Confirmation Page has 1 listing

When last checked at 1900 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one object listed.

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 27 May '13

Minor Planet Electronic Circulars

As of last check at 1900 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 27 May '13 >>  MPEC 2013-K41 - "06:05 UT" - Daily Orbit Update

Observers  on 27 May '13

Nine observers appear in today's MPEC.

CodeObserver / observatory
I47Auger Obs. in Argentina, 1 in MPEC 2013-K41 -- 285263
448Desert Moon Obs. in New Mexico, 1 in MPEC 2013-K41 -- 357005
Z81Estrella de Mar Obs., 2 in MPEC 2013-K41 -- 2013 JB36, 163249
C73Galati Obs. in Romania, 1 in MPEC 2013-K41 -- 2013 KT1
E89Geyserland Obs. in New Zealand, 1 in MPEC 2013-K41 -- 285263
V37LCOGT Fort Davis in Texas, 1 in MPEC 2013-K41 -- 2000 EU70
A24New Millennium Obs. in Italy, 8 in MPEC 2013-K41 -- 2009 BL2, 68216, 350988, 274855, 7888, 5645, 3752, 1866
C95SATINO-1 in France, 3 in MPEC 2013-K41 -- 2013 JK22, 2013 JB36, 170013
718Wiggins Obs. in Utah, 1 in MPEC 2013-K41 -- 7888
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 27 May '13

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 1900 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 CLOMON2 risk pages.





Notes for Today's Latest Risk Assessments
2013 JA17JPL Sentry19002054-211163.8e-09-5.69-6.090JPL: "Analysis based on 13 observations spanning 3.9520 days (2013-May-08.43448 to 2013-May-12.38647)." Diameter approximately 0.518 km. from mean, weighted H=19.1.

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 27 May '13

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

1900Noted that JPL Sentry has posted 2013 JA17 as an impact risk - see above
1417Generated Traffic Report
1416Grabbed MPEC 2013-K41 - Daily Orbit Update - see above