Contents  on 28 September '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 28 September '13

Three objects reported inside ten LD

Three objects are reported to be within a radius of ten lunar distances (LD) from our home world today. Inside Earth's Hill sphere, 2013 SK20 is inbound from 3.42 to 2.27 LD and tiny risk-listed intruder 2013 RZ53, possibly artificial, moves out from 3.27 to 3.59 LD. Further away, 2013 SP19 is outbound from 7.54 to 8.67 LD.

This report was generated at 1433 UTC with follow-up in today's DOU MPEC for 2013 SK20 and observation of distant radar target 152664 1998 FW4.



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. "Distant" is used to describe previous close-passers (2007+) that are not coming inside ten LD during this passage or apparition. 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 28 September '13

The MPC's NEO Confirmation Page has 25 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 25 objects listed. Of these, seven were "one nighters." So far The Tracking News has counted a total of 38 listings on the NEOCP 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 28 September '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 28 Sept. '13 >>  MPEC 2013-S59 - "06:02 UT" - Daily Orbit Update

Observers  on 28 September '13

Thirteen observers appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 15 in MPEC 2013-S59 -- 2013 SX19, 2013 SU19, 2013 ST19, 2013 SS19, 2013 SQ19, 2013 SO19, 2013 SK19, 2013 SF, 2013 SD20, 2013 RX80, 2013 RW73, 2013 RV9, 2013 RM43, 2013 PV6, 2013 PC7
160Castelmartini Obs. in Italy, 6 in MPEC 2013-S59 -- 2013 RX80, 2013 PX6, 2011 WU95, 329437, 251346, 152664
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 6 in MPEC 2013-S59 -- 2013 SD20, 2013 RK21, 2013 QG17, 2013 LF7, 2005 RO33, 2003 KX16
355Hadano Obs. in Japan, 3 in MPEC 2013-S59 -- 2013 RX80, 2013 PV6, 2012 TS
C43Hoyerswerda Obs. in Germany, 1 in MPEC 2013-S59 -- 2013 SK20
246KLENOT in the Czech Republic, 1 in MPEC 2013-S59 -- 2013 PN43
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2013-S59 -- 2010 JF
C23Olmen Obs. in Belgium, 1 in MPEC 2013-S59 -- 2012 TS
F51Pan-STARRS 1 (PS1) in Hawaii, 5 in MPEC 2013-S59 -- 2013 PU13, 2012 ER14, 2006 UD63, 2005 EJ94, 223456
461SZTE Asteroid Program in Hungary, 2 in MPEC 2013-S59 -- 2013 RZ73, 168378
G68Sierra Stars Obs. in northern California, 1 in MPEC 2013-S59 -- 142781
K90Sopot Obs., 3 in MPEC 2013-S59 -- 2013 SO19, 2013 RH74, 2013 QJ10
C36Starry Wanderer Obs. in Belarus, 1 in MPEC 2013-S59 -- 2012 TS
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 28 September '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 28 September '13

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

1433Generated Traffic Report
1428Grabbed MPEC 2013-S59 - Daily Orbit Update - see above