2011-07-28 Tracking News

Image of claimed Earth Trojan 2010 TK10 from WISE in Oct. 2010. Credit: NASA/JPL-Caltech/UCLA.

NASA is claiming discovery of the first Earth Trojan asteroid, 2010 TK10, seen here in false-color WISE space telescope October 2010 infrared imagery. Working from a short observation arc and admitting orbital instabilities, the claim has raised discussion on the Minor Planet Mailing List (MPML thread and see this, second paragraph). Sky & Telescope and Space.com have reports. Image credit: NASA/JPL-Caltech/UCLA.

Contents on 28 July '11

IAU Minor Planet Center
- NEOCP Activity -- 29 listings
- New MPECs -- eleven MPECs
Observers -- 21 observers
Impact Risk Monitoring -- nothing to report
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Of 403 risk-listed objects, 7 have had news in the last 31 days. Updated at 1603 UTC on 28 July.
Earth's Busy Neighborhood Traffic Report
One object is known to be within ten LD of Earth today. Updated at 1717 UTC on 28 July.
Ephemerides for risk-rated and nearby objects
News image catalog
Old & new CRT Archive
Old News Archive & Small Objects Archive

The latest A/CC news is available via framed access, 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.

NEOCP Activity on 28 July '11

The MPC's NEO Confirmation Page has 29 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 29 objects listed. Of these, 23 were "one nighters." So far The Tracking News has counted a total of 45 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 July '11

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been eleven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2011-O43 time-stamped "01:01 UT" - 2011 OJ5 - see below
MPEC 2011-O44 time-stamped "01:03 UT" - 2011 OK5 - see below
MPEC 2011-O45 time-stamped "01:05 UT" - 2011 OL5 - see below
MPEC 2011-O46 time-stamped "01:06 UT" - 2011 OM5 - see below
MPEC 2011-O47 time-stamped "01:10 UT" - 2004 KV18 - see below
MPEC 2011-O48 time-stamped "01:26 UT" - Five New TNOs - see below
MPEC 2011-O49 time-stamped "02:12 UT" - 2011 OQ5 - see below
MPEC 2011-O50 time-stamped "02:14 UT" - 2011 OR5 - see below
MPEC 2011-O51 time-stamped "07:11 UT" - Daily Orbit Update - see below
MPEC 2011-O52 time-stamped "18:04 UT" - 2011 OJ10 - see below
MPEC 2011-O53 time-stamped "23:11 UT" - Comet 45P/Honda-Mrkos-Pajdusakova

MPEC 2011-O53 - "23:11 UT" - Comet 45P/Honda-Mrkos-Pajdusakova

0045P 45P/Honda-Mrkos-Pajdusakova (q=0.530 AU, Q=5.513 AU, TP=2011 Sept. 28.78112 TT) from Rolando Ligustri via RAS Obs. Mayhill (July 27.37p3), Great Shefford Obs. (July 28.03p3), Vallauris Obs. (July 28.04-06p3), Chante-Perdrix Obs. (July 28.04-06p3), Cielo Profundo Obs. (July 28.05-08p3), Dax Obs. (July 28.07-10p4), and Petit Jean Mtn. South Obs. (PJMSO) (July 28.26-27p7)

MPEC 2011-O52 - "18:04 UT" - 2011 OJ10

K11O10J 2011 OJ10 (small asteroid, H=22.2 ~123m) from Pan-STARRS 1 (PS1) (July 27.47-51p3), Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (July 28.31-33p3), and Tim Lister via Faulkes Telescope North (July 28.42-43p6)

<< DOU on 28 July '11 >> MPEC 2011-O51 - "07:11 UT" - Daily Orbit Update

Observations of small asteroids (H>22.0)
K11H00P 2011 HP (arc=73 days, H=22.1 ~129m) from Spacewatch via Kitt Peak Natl. Obs. (KPNO) (June 7.34p1 & 7.38-45p3)
K10V01B 2010 VB1 (arc=2 opp, H=23.4 ~71m) from PS1 (July 27.47-52p3)
Observations of other objects
K11O00B 2011 OB (arc=7 days, H=19.4 ~446m) from Holmes/CTIO (July 27.02-03p2)
K11N00Z 2011 NZ (arc=21 days, H=20.9 ~224m) from PJMSO (July 27.33-34p6)
K11M01V 2011 MV1 (arc=32 days, H=20.2 ~309m) from PJMSO (July 27.37-39p6)
K11C02G 2011 CG2 (arc=197 days, H=21.5 ~170m) from PJMSO (July 27.34-35p6)
K10OA1F 2010 OF101 (arc=2 opp, H=19.8 ~371m) from Chabot Obs. (July 28.22-26p3)
K08T10R 2008 TR10 (arc=2 opp, H=20.5 ~269m) from PJMSO (July 27.25-26p6)
K08O00O 2008 OO (arc=2 opp, H=19.7 ~389m) from the Siding Spring Survey (SSS) (July 27.46-49p5)
K04R10X 2004 RX10 (arc=2 opp, H=21.2 ~195m) from Chabot Obs. (July 28.27-28p3)
K00CA1P 2000 CP101 (arc=2 opp, H=19.5 ~426m) from PJMSO (July 27.36-37p6)
Q7759 267759 2003 MC7 from PJMSO (July 27.26p5)
F2828 152828 1999 VT25 from Chabot Obs. (July 28.20-24p6)
05751 5751 Zao (1992 AC) from SSS (July 27.70-73p6)
05731 5731 Zeus (1988 VP4) from PS1 (July 26.56-58p5)

MPEC 2011-O50 - "02:14 UT" - 2011 OR5

K11O05R 2011 OR5 (small asteroid, H=26.1 ~20m) from PS1 (July 26.44-48p4), Astronomical Research Obs. Westfield (July 27.32-34p3), St. Pardon de Conques Obs. (July 27.96-99p3), and Great Shefford Obs. (July 28.04-05p2)

MPEC 2011-O49 - "02:12 UT" - 2011 OQ5

K11O05Q 2011 OQ5 (H=19.1 ~513m) from La Sagra Obs. (July 26.09-12p3), ARO Westfield (July 27.30-31p3), Holmes/CTIO (July 27.37-39p4), Hidetaka Sato via RAS Obs. Mayhill (July 27.38-39p3), Paul Roche via Faulkes Telescope North (July 27.60p3), Great Shefford Obs. (July 27.96-97p3), and St. Pardon de Conques Obs. (July 28.01p2)

MPEC 2011-O48 - "01:26 UT" - Five New TNOs

K06BS4S 2006 BS284 (q=33.457 AU, Q=85.494 AU, H=7.0 ~135 km) from JJ Kavelaars on Mauna Kea (2007 Jan. 19.31p1, 2007 Jan. 19.35-38p2 at g=23.8 & 2007 Jan. 20.37p1 at g=24.5), Joel Parker via Kitt Peak Natl. Obs. (KPNO) (2007 Nov. 8.43p1 at r=22.2, 2007 Nov. 9.42p1 at r=21.9, 2008 May 3.17p1 & 2008 May 4.14p1), and Brett Gladman via Mt. Palomar (2008 Dec. 6.39p2 at R=23.1-4 & 2008 Dec. 6.48p2 at R=23.4)
K04VD1H 2004 VH131 (q=22.302 AU, Q=99.430 AU, H=9.7 ~38.9 km) from program code 4 on Mauna Kea (2004 Nov. 9.39-44p3 at g=23.4-24.0, 2004 Nov. 10.31p1, 2005 Jan. 5.24p1 at i=23.8, 2005 Jan. 5.31p1 at i=23.7 & 2005 Jan. 5.36p1 at i=23.8), Kavelaars/Mauna Kea (2006 Oct. 25.41-49p3 at r=24.0-1, 2006 Oct. 26.37-40p2 at r=24.2-3, 2006 Oct. 26.44p1 at r=24.1, 2006 Oct. 27.44p1, 2006 Oct. 27.49p1 at r=24.2, 2006 Oct. 27.54p1 at r=24.0, 2007 Jan. 15.26p1, 2007 Jan. 15.31p1, 2007 Jan. 15.35p1 & 2007 Jan. 16.26-34p3), and Parker/KPNO (2006 Nov. 25.28p1, 2006 Nov. 25.37p1, 2007 Sept. 12.45p1 at r=23.8 & 2007 Sept. 12.50p1 at r=23.6)
K04VD1G 2004 VG131 (q=31.648 AU, Q=98.303 AU, H=8.5 ~67.6 km) from Mauna Kea/code 4 (2004 Nov. 9.38-43p3 at g=23.4-9, 2004 Nov. 10.30p1 at g=23.8, 2005 Jan. 5.21p1 at i=23.5, 2005 Jan. 5.27p1 at i=23.7 & 2005 Jan. 5.34p1 at i=23.6) and Gladman/Mt. Palomar (2006 Oct. 23.24-28p2 & 2006 Oct. 23.33p1 at R=23)
K04PB7Y 2004 PY117 (q=28.792 AU, Q=51.668 AU, H=7.0 ~135 km) from Mauna Kea/code 4 (2004 Aug. 15.35-42p3 at g=21.6-22.3, 2004 Aug. 16.32p1 at g=21.6, 2004 Oct. 4.26p1 at i=21.7, 2004 Oct. 4.32p1 at i=22.2 & 2004 Oct. 4.37p1 at i=21.5), program code "," (21) via La Silla (2005 July 12.25p1 at R=21.7, 2005 July 12.30p1 at R=22.1, 2005 July 12.35p1 at R=21.7 & 2005 July 13.23p1 at R=22.9), Brett Gladman via Cerro Paranal (2005 Aug. 3.19p1, 2005 Aug. 3.28p1 & 2005 Aug. 3.34p1), and Parker/KPNO (2006 May 2.48p1, 2006 May 4.48p1, 2009 June 20.40-44p2 & 2009 June 22.40p1)
K04M08W 2004 MW8 (q=22.328 AU, Q=44.847 AU, H=8.5 ~67.6 km) from Gladman/Mt. Palomar (2006 Oct. 23.12p1, 2007 May 15.45p2, 2007 May 16.43p1 & 2007 Sept. 16.17p1) and Parker/KPNO (2009 June 20.46p1, 2009 June 21.38p1 & 2009 June 21.44p1)

MPEC 2011-O47 - "01:10 UT" - 2004 KV18

K04K18V 2004 KV18 (q=24.589 AU, Q=35.662 AU, H=8.9 ~56.2 km) from Mauna Kea/code 4 (2004 June 10.28-29p2 at i=22.5-8, 2004 June 10.35p1 at i=22.9, 2004 June 10.42p1 at i=22.8 & 2005 May 14.39-46p3 at R=22.6-9), La Silla/code "," (21) (2005 July 12.03p1 at R=22.6, 2005 July 12.08p1 at R=22.7, 2005 July 12.13p1 at R=22.8 & 2005 July 13.07p1 at R=22.8), Gladman/Paranal (2005 Aug. 2.02p1, 2005 Aug. 2.12p1 & 2005 Aug. 3.11p1), and Parker/KPNO (2006 May 2.37p1 at r=21.9 & 2006 May 2.44p1 at r=22.2)

MPEC 2011-O46 - "01:06 UT" - 2011 OM5

K11O05M 2011 OM5 (Q=4.008 AU, H=21.0 ~214m) from SSS (July 25.60p1, 25.76-78p2, 26.55-56p2, 27.44-45p2 & 27.81-82p2) and Holmes/CTIO (July 26.08-09p2, 26.20-22p3 & 27.18p2)

MPEC 2011-O45 - "01:05 UT" - 2011 OL5

K11O05L 2011 OL5 (H=20.1 ~323m) from SSS (July 25.58-62p3, 25.67-70p3, 25.79p1, 26.57-58p2, 27.44p2 & 27.81p1), Faulkes Telescope South (July 25.73-74p5), and Holmes/CTIO (July 26.06-07p2, 26.26-28p2 & 27.12-14p3)

MPEC 2011-O44 - "01:03 UT" - 2011 OK5

K11O05K 2011 OK5 (H=21.6 ~162m) from PS1 (July 25.45-50p4), ARO Westfield (July 27.23-24p2), and Faulkes South (July 27.65-66p5)

MPEC 2011-O43 - "01:01 UT" - 2011 OJ5

K11O05J 2011 OJ5 (small asteroid, H=22.5 ~107m) from PS1 (July 25.45-50p4), Holmes/CTIO (July 26.17p2), ARO Westfield (July 26.22-23p4), Lister/Faulkes North (July 26.39p6), and Great Shefford Obs. (July 27.99-01p2)

Observers on 28 July '11

A total of 21 observers appear in today's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield in Illinois, 4 in MPECs 2011-O43, 2011-O44, 2011-O49 & 2011-O50 -- 2011 OR5, 2011 OQ5, 2011 OK5, 2011 OJ5
`3092`	Brett Gladman via Cerro Paranal in Chile, 2 in MPECs 2011-O47 & 2011-O48 -- 2004 PY117, 2004 KV18
`807\|`	Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 6 in MPECs 2011-O43, 2011-O45, 2011-O46, 2011-O49, 2011-O51 & 2011-O52 -- 2011 OQ5, 2011 OM5, 2011 OL5, 2011 OJ5, 2011 OJ10, 2011 OB
`G58`	Chabot Obs. in northern California, 3 in MPEC 2011-O51 -- 2010 OF101, 2004 RX10, 152828
`A77`	Chante-Perdrix Obs. in France, 1 in MPEC 2011-O53 -- 45P
`J01`	Cielo Profundo Obs. in Spain, 1 in MPEC 2011-O53 -- 45P
`958`	Dax Obs. in France, 1 in MPEC 2011-O53 -- 45P
`F65%`	Tim Lister in southern California via Faulkes Telescope North in Hawaii, 2 in MPECs 2011-O43 & 2011-O52 -- 2011 OJ5, 2011 OJ10
`F657`	Paul Roche in Wales via Faulkes Telescope North in Hawaii, 1 in MPEC 2011-O49 -- 2011 OQ5
`E10`	Faulkes Telescope South in New South Wales, 2 in MPECs 2011-O44 & 2011-O45 -- 2011 OL5, 2011 OK5
`J95`	Great Shefford Obs. in England, 4 in MPECs 2011-O43, 2011-O49, 2011-O50 & 2011-O53 -- 2011 OR5, 2011 OQ5, 2011 OJ5, 45P
`6959`	Joel Parker via Kitt Peak Natl. Obs. (KPNO) in Arizona, 5 in MPECs 2011-O47 & 2011-O48 -- 2006 BS284, 2004 VH131, 2004 PY117, 2004 MW8, 2004 KV18
`695^`	Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2011-O51 -- 2011 HP
`J75`	La Sagra Obs. in Spain, 1 in MPEC 2011-O49 -- 2011 OQ5
`809,`	program code "," (21) via La Silla in Chile, 2 in MPECs 2011-O47 & 2011-O48 -- 2004 PY117, 2004 KV18
`5684`	program code 4 on Mauna Kea in Hawaii, 4 in MPECs 2011-O47 & 2011-O48 -- 2004 VH131, 2004 VG131, 2004 PY117, 2004 KV18
`568{`	JJ Kavelaars on Mauna Kea in Hawaii, 2 in MPEC 2011-O48 -- 2006 BS284, 2004 VH131
`6758`	Brett Gladman via Mt. Palomar in southern California, 3 in MPEC 2011-O48 -- 2006 BS284, 2004 VG131, 2004 MW8
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 6 in MPECs 2011-O43, 2011-O44, 2011-O50, 2011-O51 & 2011-O52 -- 2011 OR5, 2011 OK5, 2011 OJ5, 2011 OJ10, 2010 VB1, 5731
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPECs 2011-O51 & 2011-O53 -- 2011 NZ, 2011 MV1, 2011 CG2, 2008 TR10, 2000 CP101, 267759, 45P
`H06*`	Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2011-O53 -- 45P
`H06\|`	Hidetaka Sato in Japan via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2011-O49 -- 2011 OQ5
`E12`	Siding Spring Survey (SSS) in New South Wales, 4 in MPECs 2011-O45, 2011-O46 & 2011-O51 -- 2011 OM5, 2011 OL5, 2008 OO, 5751
`I93`	St. Pardon de Conques Obs. in France, 2 in MPECs 2011-O49 & 2011-O50 -- 2011 OR5, 2011 OQ5
`B51`	Vallauris Obs. in France, 1 in MPEC 2011-O53 -- 45P

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 28 July '11

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 July '11

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

2359	Grabbed MPEC 2011-O53 - Comet 45P/Honda-Mrkos-Pajdusakova - see above
1823	Grabbed MPEC 2011-O52 - 2011 OJ10 - see above
1603	Grabbed MPEC 2011-O51 - Daily Orbit Update - see above
0356	Grabbed MPEC 2011-O49 - 2011 OQ5 - see above Grabbed MPEC 2011-O50 - 2011 OR5 - see above
0131	Grabbed MPEC 2011-O43 - 2011 OJ5 - see above Grabbed MPEC 2011-O44 - 2011 OK5 - see above Grabbed MPEC 2011-O45 - 2011 OL5 - see above Grabbed MPEC 2011-O46 - 2011 OM5 - see above Grabbed MPEC 2011-O47 - 2004 KV18 - see above Grabbed MPEC 2011-O48 - Five New TNOs - see above

http://www.HohmannTransfer.com/mn/11/11209_0728.htm
Publisher information, privacy statement, and disclaimer.
This page is © Copyright 2011 Columbine, Inc. - All Rights Reserved
Any mentioned trademarks are the property of their respective owners.
Various tabular formats and data used on this page are acknowledged as belonging to JPL, MPC, NEODyS, and/or others.
Do NOT copy, mirror, or embed this page, but you are welcome to link to it, and you may embed the RSS news feed. All information here is subject to very frequent change during the day of news compilation. Individuals may make copies for their own private, non-commercial use. Please report broken links or other problems with this page to <webmaster@hohmanntransfer.com>.
Important news updates are flagged by A/CC's RSS news feed (link).