Contents  on 22 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 22 September '13

Two objects reported inside ten LD

Two objects are reported flying within ten lunar distances (LD) of our planet today. Within Earth's Hill sphere, tiny risk-listed intruder 2013 RZ53, possibly an artificial object, is outbound from 1.32 to 1.64 LD. And, further out, 2013 RF74 departs from inside ten LD, moving from 9.54 to 11.54 LD. No other objects are known to be coming this close until mid-November.

This report was generated at 1510 UTC with astrometry reported from a couple weeks ago in today's DOU MPEC for departed 2013 QE16.

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.

NEOCP Activity  on 22 September '13

The MPC's NEO Confirmation Page has 16 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had sixteen objects listed. Of these, five were "one nighters." So far The Tracking News has counted a total of seventeen 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 22 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 22 Sept. '13 >>  MPEC 2013-S27 - "06:02 UT" - Daily Orbit Update

Observers  on 22 September '13

Seven observers appear in today's MPEC.

CodeObserver / observatory
160Castelmartini Obs. in Italy, 15 in MPEC 2013-S27 -- 2013 QJ10, 2013 PX6, 2013 OM9, 2012 TS, 2010 TN54, 368184, 355256, 329437, 326946, 275677, 269690, 252373, 250620, 243147, 220909
G48Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) in New Mexico, 3 in MPEC 2013-S27 -- 2013 SF, 2013 RW73, 2013 QJ10
246KLENOT in the Czech Republic, 2 in MPEC 2013-S27 -- 2013 QH11, 2013 QE16
5682David Tholen's team on Mauna Kea in Hawaii, 2 in MPEC 2013-S27 -- 2012 VH5, 2002 PC130
A24New Millennium Obs. in Italy, 1 in MPEC 2013-S27 -- 2013 PX6
F51Pan-STARRS 1 (PS1) in Hawaii, 4 in MPEC 2013-S27 -- 54789, 354952, 159399, 7088
718Wiggins Obs. in Utah, 1 in MPEC 2013-S27 -- 2013 RX80
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 22 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 22 September '13

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

1510Generated Traffic Report
1509Grabbed MPEC 2013-S27 - Daily Orbit Update - see above