Contents  on 26 January '12

Note: These A/CC news pages will update less often and less regularly than usual through Sunday, January 29th, possibly later.


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 26 January '12

Five objects reported inside ten LD

Five asteroids are reported moving within ten lunar distances (LD) of Earth today. Within Earth's Hill sphere, intruder 2012 BX34 comes in from 3.49 to 1.38 LD and risk-listed 2012 BW13 comes its closest to Earth on this passage--1.73 LD at 0602 UTC, and its closest to the Moon--2.55 LD at 0933 UTC. Further away, 2012 BS1 is departing, traveling from 5.21 to 6.90 LD, risk-listed 2012 BY1 leaves ten LD, passing from 7.07 to 11.10 LD, and 2012 BD14 travels from 9.83 to 8.57 LD.

On approach, radar target 2011 CP4 arrives inside ten LD on February 22nd.

This report was updated at 1851 UTC with new discovery 2012 BX34 (MPEC). This report was previously updated at 1328 UTC.

Notes: Ten LD has no astronomical significance but is a useful reporting boundary. Earth's Hill sphere (of gravitational influence) has a radius estimated at about 3.89 LD. Distances are interpreted by A/CC from JPL Horizons data. See also today's timeline plus current additional details, sky chart, and ephemerides.

NEOCP Activity  on 26 January '12

The MPC's NEO Confirmation Page has 75 listings

When last checked at 2337 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 75 objects listed. Of these, 46 were "one nighters." So far The Tracking News has counted a total of 91 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 26 January '12

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been four 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-B64 - "19:23 UT" - 2012 BA35

MPEC 2012-B63 - "19:20 UT" - 2012 BZ34

MPEC 2012-B62 - "15:27 UT" - 2012 BX34

MPEC 2012-B61 - "02:11 UT" - 2002 XQ40

Observers  on 26 January '12

Nine observers appear in today's MPECs.

CodeObserver / observatory
703Catalina Sky Survey in Arizona, 1 in MPEC 2012-B62 -- 2012 BX34
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2012-B64 -- 2012 BA35
F65%Tim Lister in southern California via Faulkes Telescope North in Hawaii, 3 in MPECs 2012-B61, 2012-B63 & 2012-B64 -- 2012 BZ34, 2012 BA35, 2002 XQ40
H01Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPECs 2012-B62, 2012-B63 & 2012-B64 -- 2012 BZ34, 2012 BX34, 2012 BA35
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2012-B61 -- 2002 XQ40
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2012-B62 -- 2012 BX34
F51Pan-STARRS 1 (PS1) in Hawaii, 3 in MPECs 2012-B61, 2012-B63 & 2012-B64 -- 2012 BZ34, 2012 BA35, 2002 XQ40
204Schiaparelli Obs. in Italy, 2 in MPECs 2012-B63 & 2012-B64 -- 2012 BZ34, 2012 BA35
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2012-B63 -- 2012 BZ34
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 26 January '12

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 26 January '12

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

1927Grabbed MPEC 2012-B63 - 2012 BZ34 - see above
Grabbed MPEC 2012-B64 - 2012 BA35 - see above
1851Updated Traffic Report
1536Grabbed MPEC 2012-B62 - 2012 BX34 - see above
0347Grabbed MPEC 2012-B61 - 2002 XQ40 - see above