Contents  on 15 October '12

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 15 October '12

Two objects reported inside ten LD

Two objects are reported moving within ten lunar distances (LD) of Earth today. Intruder 2012 TC4 (risk-listed radar target) is outbound from 4.12 to 5.59 LD and 2012 TE79 is inbound from 8.28 to 6.88 LD.

On approach next, 2012 TD79 arrives inside ten LD tomorrow and 2010 JK1 on November 22nd.

This report was generated at 1358 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 15 October '12

The MPC's NEO Confirmation Page has 26 listings

When last checked at 2307 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 26 objects listed. Of these, twelve were "one nighters." So far The Tracking News has counted a total of 48 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 15 October '12

Minor Planet Electronic Circulars

As of last check at 2307 UTC, there have been seven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts. No Daily Orbit Update DOU MPEC has been posted yet, so visit the MPC Status Page for possible explanation.


MPEC 2012-T90 - "22:50 UT" - 2012 TJ146


MPEC 2012-T89 - "22:47 UT" - 2012 TH146


MPEC 2012-T88 - "22:44 UT" - 2012 TG146


MPEC 2012-T87 - "22:35 UT" - 2012 TF146


MPEC 2012-T86 - "22:32 UT" - 2012 TE146


MPEC 2012-T85 - "22:28 UT" - 2012 TD146


MPEC 2012-T84 - "16:09 UT" - 2001 QJ142

Observers  on 15 October '12

Ten observers appear in today's MPECs.

CodeObserver / observatory
703Catalina Sky Survey in Arizona, 1 in MPEC 2012-T90 -- 2012 TJ146
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPECs 2012-T86 & 2012-T88 -- 2012 TG146, 2012 TE146
F659Marco Micheli in Hawaii via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-T85 -- 2012 TD146
J95Great Shefford Obs. in England, 2 in MPECs 2012-T85 & 2012-T87 -- 2012 TF146, 2012 TD146
H01Magdalena Ridge Obs. (MRO) in New Mexico, 5 in MPECs 2012-T85, 2012-T86, 2012-T87, 2012-T88 & 2012-T89 -- 2012 TH146, 2012 TG146, 2012 TF146, 2012 TE146, 2012 TD146
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2012-T84 -- 2001 QJ142
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2012-T86 & 2012-T87 -- 2012 TF146, 2012 TE146
F51Pan-STARRS 1 (PS1) in Hawaii, 4 in MPECs 2012-T85, 2012-T88, 2012-T89 & 2012-T90 -- 2012 TJ146, 2012 TH146, 2012 TG146, 2012 TD146
H36Sandlot Obs. in Kansas, 1 in MPEC 2012-T85 -- 2012 TD146
291Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2012-T87, 2012-T88, 2012-T89 & 2012-T90 -- 2012 TJ146, 2012 TH146, 2012 TG146, 2012 TF146
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 15 October '12

At last check (NEODyS and JPL at 2307 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 15 October '12

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

2307Grabbed MPEC 2012-T85 - 2012 TD146 - see above
Grabbed MPEC 2012-T86 - 2012 TE146 - see above
Grabbed MPEC 2012-T87 - 2012 TF146 - see above
Grabbed MPEC 2012-T88 - 2012 TG146 - see above
Grabbed MPEC 2012-T89 - 2012 TH146 - see above
Grabbed MPEC 2012-T90 - 2012 TJ146 - see above
1650Grabbed MPEC 2012-T84 - 2001 QJ142 - see above
1358Generated Traffic Report