Contents  on 23 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 23 May '13

Four objects reported inside ten LD

We have four objects reported to be within a radius of ten lunar distances (LD) from Earth today. 2013 KB exits Earth's Hill sphere, flying from 3.36 to 4.12 LD, as does 2013 KT1, moving from 3.67 to 4.46 LD. Further away, 2013 KS1 is outbound from 4.92 to 5.78 LD and 2013 KA from 6.63 to 7.73 LD.

Up next, 2009 FE arrives inside ten LD on June 2nd.

This report was generated at 1302 UTC with today's DOU MPEC reporting observation of intruder 2012 DA14 from February.

Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Earth's Hill sphere (of gravitational influence) is estimated to extend out to around 3.89 LD. 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.

Radar Astrometry  on 23 May '13

Radar observation of two objects

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

Data update noted at 1905 UTC when the database was dated 23 May

Data update noted at 2125 UTC when the database was dated 23 May

NEOCP Activity  on 23 May '13

The MPC's NEO Confirmation Page has 1 listing

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one object listed.

New MPECs  on 23 May '13

Minor Planet Electronic Circulars

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

<< DOU on 23 May '13 >>  MPEC 2013-K35 - "06:04 UT" - Daily Orbit Update

Observers  on 23 May '13

Seven observers appear in today's MPEC.

CodeObserver / observatory
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 24 in MPEC 2013-K35 -- 2013 KZ1, 2013 KY1, 2013 KR1, 2013 JG29, 2013 GR66, 2012 WB25, 2012 VJ82, 2012 AE1, 2010 LG14, 2010 KX7, 2007 XC10, 2005 HN3, 2004 KK17, 2004 JN2, 2003 OB4, 2002 TR190, 2000 OG8, 1999 VG22, 1995 LG, 278327, 203015, 163679, 162998, 137802
448Desert Moon Obs. in New Mexico, 4 in MPEC 2013-K35 -- 2013 JX2, 2013 JQ22, 2005 JE46, 7888
253Goldstone DSS-14 70m antenna in southern California, 2 in radar -- 2013 HT15, 163364
W87LCOGT Cerro Tololo C in Chile, 1 in MPEC 2013-K35 -- 2010 XD25
233San Vito Obs. in Italy, 1 in MPEC 2013-K35 -- 7888
926Tenagra II Obs. in Arizona, 1 in MPEC 2013-K35 -- 354332
Z92West Park Obs., 1 in MPEC 2013-K35 -- 2012 DA14
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 23 May '13

At last check (NEODyS and JPL at 2359 UTC) there was no risk monitoring news to report yet today. Visit the CRT to view activity in the last four weeks and our ephemerides page for a complete list of risk-rated objects under current observation or having recent news.

Chronology  on 23 May '13

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

2125Noted Radar Astrometry database update - see above
1905Noted Radar Astrometry database update - see above
1302Generated Traffic Report
1259Grabbed MPEC 2013-K35 - Daily Orbit Update - see above