Contents  on 30 September '12

Asteroid/Comet Connection (A/CC) Resources:

  Note: The A/CC news pages will update only occasionally through early October 5th UTC.

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 30 September '12

Three objects reported inside ten LD

Three asteroids are reported to be within ten lunar distances (LD) of Earth today. 2012 SJ58 is calculated with some uncertainty to be inbound from 9.7 to 7.9 LD while the other two exit the ten-LD "bubble," with 2012 SL50 moving from 7.77 to 10.33 LD and risk-listed 2012 SY49 from 7.44 to 10.85 LD.

Headed our way next, 2010 JK1 arrives inside ten LD on November 22nd.

This report was generated at 1350 UTC.


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 30 September '12

The MPC's NEO Confirmation Page has 5 listings

When last checked at 2357 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five objects listed. Of these, three were "one nighters." So far The Tracking News has counted a total of seven 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 30 September '12

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


<< DOU on 30 Sept. '12 >>  MPEC 2012-S87 - "06:03 UT" - Daily Orbit Update

Observers  on 30 September '12

Nine observers appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 14 in MPEC 2012-S87 -- 2012 SK8, 2012 SB22, 2012 QP17, 2012 QF49, 2012 QF42, 2012 QE50, 2012 HO15, 87684, 330825, 329520, 214869, 159635, 5731, 5646
I74Baxter Garden Obs. in England, 2 in MPEC 2012-S87 -- 143649, 141851
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 10 in MPEC 2012-S87 -- 2012 SB22, 2012 RP15, 2012 RL2, 2012 RG15, 2012 RF15, 2012 QQ50, 2012 QO10, 2012 PQ28, 2012 OO, 2012 HY1
F658David Tholen's team in Hawaii via Faulkes Telescope North in Hawaii, 2 in MPEC 2012-S87 -- 276397, 206910
C10Maisoncelles Obs. in France, 1 in MPEC 2012-S87 -- 3200
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2012-S87 -- 6569
H06|Hidetaka Sato in Japan via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2012-S87 -- 2009 HC82
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2012-S87 -- 2012 QO10
H36Sandlot Obs. in Kansas, 1 in MPEC 2012-S87 -- 159635
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 30 September '12

At last check (NEODyS and JPL at 2357 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 30 September '12

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

1350Generated Traffic Report
1347Grabbed MPEC 2012-S87 - Daily Orbit Update - see above