2009-03-02 Tracking News

Contents on 2 March '09

IAU Minor Planet Center
- NEOCP Activity -- 19 listings: 1 new, 18 updated
- New MPECs -- five MPECs
Observers -- 21 observing facilities
Impact Risk Monitoring -- four objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
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 2 March '09

The MPC's NEO Confirmation Page has 19 listings: 1 new, 18 updated

When last checked at 2302 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and eighteen updated listings. All of these were "one nighters." So far The Tracking News has counted a total of 24 listings on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

New MPECs on 2 March '09

Minor Planet Electronic Circulars

As of last check at 2302 UTC, there have been five MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2009-E10 time-stamped "03:56 UT" - 2009 DD45 - see below
MPEC 2009-E11 time-stamped "07:08 UT" - Daily Orbit Update - see below
MPEC 2009-E12 time-stamped "12:06 UT" - 2009 DD47 - see below
MPEC 2009-E13 time-stamped "12:09 UT" - 2009 DE47 - see below
MPEC 2009-E14 time-stamped "12:17 UT" - 2009 ED

MPEC 2009-E14 - "12:17 UT" - 2009 ED

K09E00D 2009 ED (H=21.6 ~162m) was discovered at 0749 UT on 1 March by the Mt. Lemmon Survey (MLS), which observed it at March 1.33-39p7 at V=21.7-22.6 and 2.37p4 at V=21.8-22.2. The discovery was confirmed by Magdalena Ridge Obs. (MRO) (March 1.42-43p3 & 2.20-22p4).

MPEC 2009-E13 - "12:09 UT" - 2009 DE47

K09D47E 2009 DE47 (risk-listed, H=18.6 ~645m) was discovered at 1020 UT on 28 Feb. by LINEAR, which observed it at Feb. 28.43-48p5. The discovery was confirmed by Great Shefford Obs. (March 2.08-09p3) and Sabino Canyon Obs. (March 2.38-39p3).

MPEC 2009-E12 - "12:06 UT" - 2009 DD47

K09D47D 2009 DD47 (i=106.1°, q=2.150 AU, Q=30.354 AU, H=16.0 ~2.14 km) was discovered at 0810 UT on 27 Feb. by LINEAR, which observed it at Feb. 27.34-36p3. The discovery was confirmed by Guidestar Obs. (Feb. 28.96-98p3), MRO (March 1.24-25p4 & 2.31p3), Sandlot Obs. (March 1.30-32p4), Sabino Canyon Obs. (March 1.30-31p3), the Spacewatch 1.8m telescope (March 1.31-32p3 & 2.28-29p3), Ernesto Guido via RAS Obs. Mayhill (March 1.40-42p2), Great Shefford Obs. (March 2.07-08p3), and Marco Micheli via Faulkes Telescope North (March 2.33p4).

<< DOU on 2 Mar. '09 >> MPEC 2009-E11 - "07:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K09D43T 2009 DT43 (small asteroid, Q=4.178 AU, arc=3 days, H=26.7 ~15m) from the Catalina Sky Survey (CSS) (March 1.32-34p4), Great Shefford Obs. (March 2.04-05p3), and Spacewatch 1.8m (March 2.23-24p3)
K09D42Z 2009 DZ42 (arc=4 days, H=19.6 ~407m) from Spacewatch 1.8m (March 2.10-11p3)
Observations of recently (no longer) risk-listed objects
K09D43V 2009 DV43 (small asteroid, arc=2 days, H=23.7 ~62m) from MRO (March 1.30p3) and LINEAR (March 1.31-37p4)
K09D43S 2009 DS43 (small asteroid, arc=3 days, H=25.8 ~23m) from Great Shefford Obs. (March 1.80-82p3)
K09D03R 2009 DR3 (arc=15 days, H=21.4 ~178m) from MLS (March 1.18p4)
Observations of small asteroids (H>22.0)
K09D46J 2009 DJ46 (arc=1 day, H=25.5 ~27m) from LINEAR (March 1.31-35p4)
K09D45D 2009 DD45 (arc=3 days, H=25.4 ~28m) from Hibiscus Obs. (March 2.24p5)
K09D43A 2009 DA43 (arc=4 days, H=24.6 ~41m) from Great Shefford Obs. (March 1.92-93p2)
K09D12C 2009 DC12 (arc=7 days, H=22.9 ~89m) from MLS (March 1.30-32p3 at V=21.5-22.1)
K09C02X 2009 CX2 (arc=26 days, H=23.9 ~56m) from MLS (March 1.39-42p4 at V=21.7-22.2)
K09B58H 2009 BH58 (arc=32 days, H=23.5 ~68m) from Spacewatch 1.8m (March 1.44p3)
Observations of other objects
K09D45M 2009 DM45 (arc=5 days, H=21.3 ~186m) from Kline Obs. (March 1.24-25p3) and Great Shefford Obs. (March 1.88p3)
K09D12B 2009 DB12 (arc=7 days, H=21.4 ~178m) from MLS (March 1.17-18p4)
K09D01D 2009 DD1 (arc=10 days, H=20.3 ~295m) from MLS (March 1.18p3) and LINEAR (March 1.26-30p5)
K09C03A 2009 CA3 (arc=26 days, H=20.1 ~323m) from Spacewatch 1.8m (March 2.12p2)
K08Y29E 2008 YE29 (Q=4.542 AU, arc=61 days, H=20.4 ~282m) from Rezman Obs. (Feb. 28.86-88p3)
K08S85C 2008 SC85 (arc=155 days, H=19.4 ~446m) from MLS (March 1.14-16p3)
K08R98M 2008 RM98 (Q=4.198 AU, arc=175 days, H=20.6 ~257m) from LINEAR (March 1.18-22p3)
K08Q03T 2008 QT3 (arc=188 days, H=18.8 ~589m) from Rezman Obs. (Feb. 28.85-88p3)
K08E05E 2008 EE5 (i=44.8°, arc=2 opp, H=19.7 ~389m) from Panker Obs. (Feb. 12.85p4)
K08E00E 2008 EE (arc=2 opp, H=19.7 ~389m) from Rezman Obs. (Feb. 28.89-93p3)
K07B02T 2007 BT2 (arc=3 opp, H=17.2 ~1.23 km) from Rezman Obs. (March 1.13-16p3)
K05T51Z 2005 TZ51 (arc=3 opp, H=17.9 ~891m) from New Millennium Obs. (2008 Dec. 21.77-81p6)
K05N01J 2005 NJ1 (arc=4 opp, H=18.5 ~676m) from the Spacewatch 0.9m telescope (March 1.17-20p3)
K04F17M 2004 FM17 (arc=3 opp, H=19.2 ~490m) from MLS (March 1.53-54p4)
K04E09U 2004 EU9 (arc=3 opp, H=18.9 ~562m) from LINEAR (March 1.31-37p5)
K03Y01X 2003 YX1 (arc=2 opp, H=20.9 ~224m) from Rezman Obs. (Feb. 28.89-91p2)
K03S84J 2003 SJ84 (i=36.7°, arc=2 opp, H=19.7 ~389m) from Spacewatch 1.8m (March 1.50-52p3)
K02P80G 2002 PG80 (arc=3 opp, H=18.5 ~676m) from Spacewatch 0.9m (March 1.18-21p3)
J91J00W 1991 JW (arc=5 opp, H=19.5 ~426m) from LINEAR (March 1.45-49p3)
K7398 207398 2006 AS2 from Panker Obs. (Feb. 8.83-88p15)
K3217 203217 2001 FX9 from Rezman Obs. (Feb. 28.89-92p3) and LINEAR (March 1.26-30p4)
G2900 162900 2001 HG31 from Rezman Obs. (Feb. 28.86-88p3) and Mt. Tuffley Obs. (March 1.90-91p3)
G2679 162679 2000 TK1 from New Millennium Obs. (2008 Dec. 21.74-79p5)
F5336 155336 2006 GA1 from LINEAR (March 1.38-43p5)
F4589 154589 2003 MX2 from Spacewatch 0.9m (March 1.39-42p3)
E1495 141495 2002 EZ11 from Spacewatch 0.9m (March 1.34-38p3)
A1873 101873 1999 NC5 from Rezman Obs. (Feb. 28.82-83p2)
85953 85953 1999 FK21 from Mt. Tuffley Obs. (March 2.01-02p3)
85236 85236 1993 KH from New Millennium Obs. (2008 Dec. 21.74-78p6)
52768 52768 1998 OR2 from Rezman Obs. (March 1.15-16p2) and LINEAR (March 1.43-48p5)
36284 36284 2000 DM8 from Rezman Obs. (Feb. 28.85-87p3)
22771 22771 1999 CU3 from LINEAR (March 1.26-31p5)
22753 22753 1998 WT from Rezman Obs. (Feb. 28.85-88p3)
14402 14402 1991 DB from Mt. Tuffley Obs. (March 1.93p2)
12711 12711 Tukmit (1991 BB) from LINEAR (March 1.10-14p4)
07358 7358 Oze (1995 YA3) from Rezman Obs. (Feb. 28.81-84p3)
04183 4183 Cuno (1959 LM) from New Millennium Obs. (2008 Dec. 21.76-81p6)
04179 4179 Toutatis (1989 AC) from Iowa Robotic Obs. (Feb. 21.10p1, 21.15p1, 24.17p1, 24.25p1, 26.15p1, 26.28p1 & 26.40p1), Washington D.C. Obs. (Feb. 25.16p2 & 26.09p2), and Rezman Obs. (Feb. 28.90-93p3)
03554 3554 Amun (1986 EB) from Rezman Obs. (Feb. 28.90-94p3) and Mt. Tuffley Obs. (March 1.98p3)
03122 3122 Florence (1981 ET3) from Spacewatch 0.9m (March 1.18-21p3)
03103 3103 Eger (1982 BB) from LINEAR (March 1.44-46p3)
01917 1917 Cuyo (1968 AA) from Rezman Obs. (Feb. 28.86-88p3)
01863 1863 Antinous (1948 EA) from Rezman Obs. (Feb. 28.89-93p3)
01627 1627 Ivar (1929 SH) from Panker Obs. (Feb. 12.74-76p3)
01620 1620 Geographos (1951 RA) from New Millennium Obs. (2008 Dec. 21.82-83p2)
01036 1036 Ganymed (1924 TD) from Mt. Tuffley Obs. (March 1.96-97p3)

MPEC 2009-E10 - "03:56 UT" - 2009 DD45

K09D45D 2009 DD45 (small asteroid, Earth MOID=0.1 LD, H=25.4 ~28m) from CEAMIG-REA (March 1.98p4 & 2.13-14p4) This object is now within ten lunar distances (LD) of Earth, reaching 0.2 LD on 2 March (INTRUDER).

Observers on 2 March '09

A total of 21 observing facilities appear in today's MPECs.

Code	Observer / observatory
`I77`	CEAMIG-REA in Brazil, 1 in MPEC 2009-E10 -- 2009 DD45
`703`	Catalina Sky Survey in Arizona, 1 in MPEC 2009-E11 -- 2009 DT43
`F659`	Marco Micheli in Hawaii via Faulkes Telescope North in Hawaii, 1 in MPEC 2009-E12 -- 2009 DD47
`J95`	Great Shefford Obs. in England, 6 in MPECs 2009-E11, 2009-E12 & 2009-E13 -- 2009 DT43, 2009 DS43, 2009 DM45, 2009 DE47, 2009 DD47, 2009 DA43
`A17`	Guidestar Obs. in Germany, 1 in MPEC 2009-E12 -- 2009 DD47
`F84`	Hibiscus Obs. in Tahiti, 1 in MPEC 2009-E11 -- 2009 DD45
`857`	Iowa Robotic Obs. in Arizona, 1 in MPEC 2009-E11 -- 4179
`H05`	Kline Obs. in Colorado, 1 in MPEC 2009-E11 -- 2009 DM45
`704`	LINEAR in New Mexico, 14 in MPECs 2009-E11, 2009-E12 & 2009-E13 -- 2009 DV43, 2009 DJ46, 2009 DE47, 2009 DD47, 2009 DD1, 2008 RM98, 2004 EU9, 1991 JW, 52768, 22771, 203217, 155336, 12711, 3103
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPECs 2009-E11, 2009-E12 & 2009-E14 -- 2009 ED, 2009 DV43, 2009 DD47
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 8 in MPECs 2009-E11 & 2009-E14 -- 2009 ED, 2009 DR3, 2009 DD1, 2009 DC12, 2009 DB12, 2009 CX2, 2008 SC85, 2004 FM17
`J93`	Mt. Tuffley Obs. in England, 5 in MPEC 2009-E11 -- 85953, 162900, 14402, 3554, 1036
`A24`	New Millennium Obs. in Italy, 5 in MPEC 2009-E11 -- 2005 TZ51, 85236, 162679, 4183, 1620
`A32`	Panker Obs. in Germany, 3 in MPEC 2009-E11 -- 2008 EE5, 207398, 1627
`H06%`	Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-E12 -- 2009 DD47
`A41`	Rezman Obs. in Slovenia, 16 in MPEC 2009-E11 -- 2008 YE29, 2008 QT3, 2008 EE, 2007 BT2, 2003 YX1, 52768, 36284, 22753, 203217, 162900, 101873, 7358, 4179, 3554, 1917, 1863
`854`	Sabino Canyon Obs. in Arizona, 2 in MPECs 2009-E12 & 2009-E13 -- 2009 DE47, 2009 DD47
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2009-E12 -- 2009 DD47
`691`	Spacewatch 0.9m telescope in Arizona, 5 in MPEC 2009-E11 -- 2005 NJ1, 2002 PG80, 154589, 141495, 3122
`291`	Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2009-E11 & 2009-E12 -- 2009 DZ42, 2009 DT43, 2009 DD47, 2009 CA3, 2009 BH58, 2003 SJ84
`I13`	Washington D.C. Obs. in Washington, D.C., 1 in MPEC 2009-E11 -- 4179

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

Impact Risk Monitoring on 2 March '09

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2302 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few objects.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.
0000NNN000 Object	Risk Monitor	When Noted UTC	0000T0000 Year Range	VI #	000NN00 Prob Cum	T0000 PS Cum	T0000 PS Max	T S	Notes for Today's Latest Risk Assessments

2009 DE47	JPL Sentry	1500	2011-2106	67	3.6e-08	-3.20	-3.29	0	JPL: "Analysis based on 11 observations spanning 1.9616 days (2009-Feb-28.43091 to 2009-Mar-02.39247)." Diameter approximately 0.986 km. from mean, weighted H=17.7.

2009 DL46	JPL Sentry	0121	2029-2104	22	5.3e-08	-5.47	-5.77	0	JPL: "Analysis based on 22 observations spanning .96725 days (2009-Feb-28.41984 to 2009-Mar-01.38709)." Diameter approximately 0.194 km. from mean, weighted H=21.2.

2009 DT43	JPL Sentry	1500	R E M O V E D						JPL: Risk listing removed at 0950 UTC.
2009 DT43	NEODyS	1500	R E M O V E D						-

2009 DZ42	NEODyS	1501	2073	1	4.3e-09	-5.92	-5.92	0	NEODyS: "Based on 45 optical observations (of which 0 are rejected as outliers) from 2009/02/26.129 to 2009/03/02.111."
2009 DZ42	JPL Sentry	1500	2073	1	1.4e-08	-5.38	-5.38	0	JPL: "Analysis based on 45 observations spanning 3.9822 days (2009-Feb-26.12849 to 2009-Mar-02.11068)." Diameter approximately 0.410 km. from mean, weighted H=19.6.

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology on 2 March '09

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

1501	Noted that NEODyS has updated its 2009 DZ42 risk assessment - see above
1500	Noted that JPL Sentry has posted 2009 DE47 as an impact risk - see above Noted that JPL Sentry has removed 2009 DT43 as an impact risk - see above Noted that NEODyS has removed 2009 DT43 as an impact risk - see above Noted that JPL Sentry has updated its 2009 DZ42 risk assessment - see above Grabbed MPEC 2009-E11 - Daily Orbit Update - see above Grabbed MPEC 2009-E12 - 2009 DD47 - see above Grabbed MPEC 2009-E13 - 2009 DE47 - see above Grabbed MPEC 2009-E14 - 2009 ED - see above
0406	Grabbed MPEC 2009-E10 - 2009 DD45 - see above
0121	Noted that JPL Sentry has posted 2009 DL46 as an impact risk - see above

http://www.HohmannTransfer.com/mn/09/09061_0302.htm
Publisher information, privacy statement, and disclaimer.
This page is © Copyright 2009 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> (HTML 4.01 validation).
Important news updates are flagged by A/CC's RSS news feed (link).