2009-02-05 Tracking News

Contents on 5 February '09

IAU Minor Planet Center
- NEOCP Activity -- two listings: 2 updated
- New MPECs -- ten MPECs
Observers -- 20 observing facilities
Impact Risk Monitoring -- six 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 5 February '09

The MPC's NEO Confirmation Page has 2 listings: 2 updated

When last checked at 2355 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two updated listings. Both of these were "one nighters." So far The Tracking News has counted a total of nine objects listed 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 5 February '09

Minor Planet Electronic Circulars

As of last check at 2355 UTC, there have been ten MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2009-C48 time-stamped "04:05 UT" - 2008 LP17 - see below
MPEC 2009-C49 time-stamped "07:07 UT" - Daily Orbit Update - see below
MPEC 2009-C50 time-stamped "13:33 UT" - 2009 CX2 - see below
MPEC 2009-C51 time-stamped "13:41 UT" - 2009 CY2 - see below
MPEC 2009-C52 time-stamped "13:44 UT" - 2009 CZ2 - see below
MPEC 2009-C53 time-stamped "13:46 UT" - 2009 CA3 - see below
MPEC 2009-C54 time-stamped "13:49 UT" - 2009 CB3 - see below
MPEC 2009-C55 time-stamped "13:51 UT" - 2009 CC3 - see below
MPEC 2009-C56 time-stamped "19:10 UT" - Comets C/2008 W4, 2008 W5, 2008 W6, 2008 W7 (SOHO) - see below
MPEC 2009-C57 time-stamped "19:20 UT" - Comets C/2008 W8, 2008 W9, 2008 W10, 2008 W11 (SOHO)

MPEC 2009-C57 - "19:20 UT" - Comets C/2008 W8, 2008 W9, 2008 W10, 2008 W11 (SOHO)

CK08W110 C/2008 W11 from the LASCO Coronagraph 2 aboard the Solar & Heliospheric Obs. (SOHO) (Nov. 29.92-02p14)
CK08W100 C/2008 W10 from SOHO C2 (Nov. 28.15-23p14)
CK08W090 C/2008 W9 from SOHO C2 (Nov. 27.63-75p18)
CK08W080 C/2008 W8 from SOHO C2 (Nov. 26.56-67p18)

MPEC 2009-C56 - "19:10 UT" - Comets C/2008 W4, 2008 W5, 2008 W6, 2008 W7 (SOHO)

CK08W070 C/2008 W7 from the LASCO Coronagraph 3 aboard the Solar & Heliospheric Obs. (SOHO) (Nov. 24.78-93p14 & 24.97-03p8) and SOHO C2 (Nov. 25.15-29p18)
CK08W060 C/2008 W6 from SOHO C2 (Nov. 24.50-59p14)
CK08W050 C/2008 W5 from SOHO C3 (Nov. 23.89-93p4, 23.97-24p28, 24.28-40p14 & 24.48p1) and SOHO C2 (Nov. 24.42-59p23)
CK08W040 C/2008 W4 from SOHO C2 (Nov. 23.52-63p14)

MPEC 2009-C55 - "13:51 UT" - 2009 CC3

K09C03C 2009 CC3 (risk-listed, H=18.9 ~562m) was discovered at 1506 UT on 4 Feb. by the Siding Spring Survey (SSS), which observed it at Feb. 4.63-69p3 and 4.73-76p8. The discovery was confirmed by the Mt. Lemmon Survey (MLS) (Feb. 5.42-43p4 & 5.50p4).

MPEC 2009-C54 - "13:49 UT" - 2009 CB3

K09C03B 2009 CB3 (risk-listed, q=0.271 AU, Earth MOID=4.8 LD, H=19.5 ~426m) was discovered at 1301 UT on 4 Feb. by MLS, which observed it at Feb. 4.50-54p8 and 5.49-53p12.

MPEC 2009-C53 - "13:46 UT" - 2009 CA3

K09C03A 2009 CA3 (H=19.8 ~371m) was discovered at 0335 UT on 4 Feb. by the Catalina Sky Survey (CSS), which observed it at Feb. 4.15-17p4. The discovery was confirmed by MLS (Feb. 4.18-19p4, 4.24p4, 5.17p4 & 5.25p4) and Sabino Canyon Obs. (Feb. 4.23p2).

MPEC 2009-C52 - "13:44 UT" - 2009 CZ2

K09C02Z 2009 CZ2 (Q=4.199 AU, H=18.8 ~589m) was discovered at 0236 UT on 4 Feb. by MLS, which observed it at Feb. 4.11-13p4 and 5.09-14p11.

MPEC 2009-C51 - "13:41 UT" - 2009 CY2

K09C02Y 2009 CY2 (Q=4.075 AU, H=17.9 ~891m) was discovered at 1213 UT on 3 Feb. by CSS, which observed it at Feb. 3.51-55p7, 4.41-42p4, and 5.42-46p3. The discovery was confirmed by Sabino Canyon Obs. (Feb. 5.44-45p2).

MPEC 2009-C50 - "13:33 UT" - 2009 CX2

K09C02X 2009 CX2 (small asteroid, H=23.7 ~62m) was discovered at 0949 UT on 3 Feb. by LINEAR, which observed it at Feb. 3.41-45p4. The discovery was confirmed by Astronomical Research Obs. (ARO) (Feb. 4.39-40p3), Sabino Canyon Obs. (Feb. 5.41-42p2), and MLS (Feb. 5.46p4).

<< DOU on 5 Feb. '09 >> MPEC 2009-C49 - "07:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K09C01Z 2009 CZ1 (small asteroid, arc=2 days, H=24.5 ~43m) from the Spacewatch 1.8m telescope (Feb. 5.26-27p3)
K09C00Z 2009 CZ (arc=1 day, H=18.1 ~812m) from Kanab Obs. (Feb. 4.19-22p2)
Observations of recently (no longer) risk-listed objects
K09C00V 2009 CV (small asteroid, arc=2 days, H=24.2 ~49m) from Wildberg Obs. (Feb. 4.94-96p7)
Observations of small asteroids (H>22.0)
K09C01T 2009 CT1 (arc=2 days, H=24.3 ~47m) from Spacewatch 1.8m (Feb. 5.19-20p3)
K09C00G 2009 CG (arc=3 days, H=22.9 ~89m) from ARO (Feb. 4.39-40p3)
K09B58L 2009 BL58 (arc=6 days, H=24.7 ~39m) from CSS (Feb. 4.22-25p4), Petit Jean Mtn. South Obs. (PJMSO) (Feb. 4.35-36p7), Desert Moon Obs. (Feb. 4.39-40p3), and ARO (Feb. 4.40-41p3)
K09B58D 2009 BD58 (arc=17 days, H=22.2 ~123m) from PJMSO (Feb. 4.32p8)
K09B11C 2009 BC11 (arc=8 days, H=22.2 ~123m) from ARO (Feb. 2.48-49p4)
Observations of almost-small asteroids (21.7<H<=22.0)
K09C01W 2009 CW1 (arc=1 day, H=21.8 ~148m) from Desert Moon Obs. (Feb. 4.46-49p3)
K09B58O 2009 BO58 (arc=6 days, H=21.9 ~141m) from ARO (Feb. 4.43p4)
Observations of other objects
K09C02B 2009 CB2 (i=40.6°, arc=1 day, H=19.1 ~513m) from Spacewatch 1.8m (Feb. 5.17p3)
K09B77E 2009 BE77 (Q=4.742 AU, arc=5 days, H=18.0 ~851m) from Desert Moon Obs. (Feb. 4.25p1)
K09B71K 2009 BK71 (i=36.1°, arc=6 days, H=19.5 ~426m) from Desert Moon Obs. (Feb. 4.35-37p4) and Naef Obs. (Feb. 4.83-86p4)
K09B58E 2009 BE58 (arc=8 days, H=21.6 ~162m) from ARO (Feb. 4.42p3) and PJMSO (Feb. 4.43p7)
K09B02M 2009 BM2 (Q=4.286 AU, arc=17 days, H=19.8 ~371m) from PJMSO (Feb. 4.38p7)
K09B00B 2009 BB (q=0.373 AU, Q=4.468 AU, arc=19 days, H=18.3 ~741m) from Desert Moon Obs. (Feb. 4.08-10p4)
K09A16G 2009 AG16 (arc=20 days, H=21.2 ~195m) from MLS (Feb. 4.18p4 at V=20.8-22.4)
K09A16F 2009 AF16 (arc=20 days, H=21.2 ~195m) from PJMSO (Feb. 4.29-30p7)
K08Y02R 2008 YR2 (arc=45 days, H=18.7 ~616m) from Desert Moon Obs. (Feb. 4.51-52p3)
K08X02E 2008 XE2 (arc=62 days, H=19.3 ~467m) from PJMSO (Feb. 4.40p6)
K08E00E 2008 EE (arc=2 opp, H=19.7 ~389m) from PJMSO (Feb. 4.41-42p6)
K07B29G 2007 BG29 (arc=2 opp, H=18.0 ~851m) from Calar Alto Obs. (Jan. 30.79p3)
K06W02Z 2006 WZ2 (arc=3 opp, H=16.9 ~1.41 km) from LINEAR (Feb. 4.34-39p5) and PJMSO (Feb. 4.40-41p5)
K06A02S 2006 AS2 (arc=4 opp, H=20.4 ~282m) from PJMSO (Feb. 4.28-29p7)
K05S25N 2005 SN25 (arc=3 opp, H=19.7 ~389m) from CSS (Feb. 4.15-17p4)
K04N08L 2004 NL8 (Q=4.417 AU, arc=4 opp, H=17.1 ~1.29 km) from Rio Cuarto Obs. (Feb. 4.27-29p2)
K03Y01X 2003 YX1 (arc=2 opp, H=20.9 ~224m) from PJMSO (Feb. 4.41p5)
K03R00B 2003 RB (arc=4 opp, H=18.7 ~616m) from the Spacewatch 0.9m telescope (Feb. 4.19-22p3)
K03Q47M 2003 QM47 (arc=4 opp, H=18.2 ~776m) from Rio Cuarto Obs. (Feb. 4.18-20p2)
K02X90P 2002 XP90 (arc=3 opp, H=18.4 ~708m) from LINEAR (Feb. 4.34-39p3)
K02C11T 2002 CT11 (i=53.9°, arc=5 opp, H=17.0 ~1.35 km) from Desert Moon Obs. (Feb. 4.54p2)
K01P01D 2001 PD1 (arc=3 opp, H=18.2 ~776m) from MLS (Feb. 4.30-31p4)
K00DB0V 2000 DV110 (arc=6 opp, H=19.6 ~407m) from Spacewatch 0.9m (Feb. 4.12-14p2)
K00B19L 2000 BL19 (Q=4.472 AU, arc=2 opp, H=19.9 ~355m) from PJMSO (Feb. 4.35p5)
K00AK5D 2000 AD205 (arc=3 opp, H=18.6 ~645m) from MLS (Feb. 4.21-23p4)
J99C08W 1999 CW8 (arc=3 opp, H=18.6 ~645m) from PJMSO (Feb. 4.30-31p6) and Naef Obs. (Feb. 4.83-85p2)
J99A10Q 1999 AQ10 (arc=4 opp, H=20.4 ~282m) from ARO (Feb. 4.42-43p3) and PJMSO (Feb. 4.43-44p5)
G1989 161989 Cacus (1978 CA) from SSS (Feb. 4.74-77p4)
F3271 153271 2001 CL42 from MLS (Feb. 4.50-51p4)
F2931 152931 2000 EA107 from LINEAR (Feb. 4.39-43p4)
E1052 141052 2001 XR1 from Starkenburg Obs. (Dec. 29.97-02p3) and CSS (Feb. 4.15-17p4)
D8925 138925 2001 AU43 from LINEAR (Feb. 4.34-39p5)
D7924 137924 2000 BD19 from MLS (Feb. 4.16-17p4) and LINEAR (Feb. 4.22-26p4)
A8519 108519 2001 LF from SSS (Feb. 4.55-57p3)
87684 87684 2000 SY2 from Leura Obs. (2004 Sept. 10.65p1)
68350 68350 2001 MK3 from Naef Obs. (Feb. 4.92-94p2)
19764 19764 2000 NF5 from MLS (Feb. 4.19-21p4)
04544 4544 Xanthus (1989 FB) from CSS (Feb. 4.12-14p3)
03122 3122 Florence (1981 ET3) from Spacewatch 0.9m (Feb. 4.47-51p3)
01864 1864 Daedalus (1971 FA) from LINEAR (Feb. 4.16-20p5)

MPEC 2009-C48 - "04:05 UT" - 2008 LP17

K08L17P 2008 LP17 (q=29.972 AU, Q=147.508 AU, H=6.4 ~178 km) from Cerro Tololo Inter-American Obs. (CTIO) (2008 Aug. 23.05p1) and Mt. Palomar (Feb. 3.47p1, 3.56p1, 4.46p1 & 4.57p1)

Observers on 5 February '09

A total of 20 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 7 in MPECs 2009-C49 & 2009-C50 -- 2009 CX2, 2009 CG, 2009 BO58, 2009 BL58, 2009 BE58, 2009 BC11, 1999 AQ10
`493`	Calar Alto Obs. in Spain, 1 in MPEC 2009-C49 -- 2007 BG29
`703`	Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2009-C49, 2009-C51 & 2009-C53 -- 2009 CY2, 2009 CA3, 2009 BL58, 2005 SN25, 141052, 4544
`807`	Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2009-C48 -- 2008 LP17
`448`	Desert Moon Obs. in New Mexico, 7 in MPEC 2009-C49 -- 2009 CW1, 2009 BL58, 2009 BK71, 2009 BE77, 2009 BB, 2008 YR2, 2002 CT11
`682`	Kanab Obs. in Utah, 1 in MPEC 2009-C49 -- 2009 CZ
`704`	LINEAR in New Mexico, 7 in MPECs 2009-C49 & 2009-C50 -- 2009 CX2, 2006 WZ2, 2002 XP90, 152931, 138925, 137924, 1864
`E17`	Leura Obs. in New South Wales, 1 in MPEC 2009-C49 -- 87684
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 11 in MPECs 2009-C49, 2009-C50, 2009-C52, 2009-C53, 2009-C54 & 2009-C55 -- 2009 CZ2, 2009 CX2, 2009 CC3, 2009 CB3, 2009 CA3, 2009 AG16, 2001 PD1, 2000 AD205, 19764, 153271, 137924
`675`	Mt. Palomar in southern California, 1 in MPEC 2009-C48 -- 2008 LP17
`A13`	Naef Obs. in Switzerland, 3 in MPEC 2009-C49 -- 2009 BK71, 1999 CW8, 68350
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 13 in MPEC 2009-C49 -- 2009 BM2, 2009 BL58, 2009 BE58, 2009 BD58, 2009 AF16, 2008 XE2, 2008 EE, 2006 WZ2, 2006 AS2, 2003 YX1, 2000 BL19, 1999 CW8, 1999 AQ10
`I20`	Rio Cuarto Obs. in Argentina, 2 in MPEC 2009-C49 -- 2004 NL8, 2003 QM47
`854`	Sabino Canyon Obs. in Arizona, 3 in MPECs 2009-C50, 2009-C51 & 2009-C53 -- 2009 CY2, 2009 CX2, 2009 CA3
`E12`	Siding Spring Survey (SSS) in New South Wales, 3 in MPECs 2009-C49 & 2009-C55 -- 2009 CC3, 161989, 108519
`2492`	LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 8 in MPECs 2009-C56 & 2009-C57 -- C/2008 W9, C/2008 W8, C/2008 W7, C/2008 W6, C/2008 W5, C/2008 W4, C/2008 W11, C/2008 W10
`2493`	LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 2 in MPEC 2009-C56 -- C/2008 W7, C/2008 W5
`691`	Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2009-C49 -- 2003 RB, 2000 DV110, 3122
`291`	Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2009-C49 -- 2009 CZ1, 2009 CT1, 2009 CB2
`611`	Starkenburg Obs. in Germany, 1 in MPEC 2009-C49 -- 141052
`198`	Wildberg Obs. in Germany, 1 in MPEC 2009-C49 -- 2009 CV

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

Impact Risk Monitoring on 5 February '09

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2355 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 CC3	JPL Sentry	1704	2017-2108	48	8.5e-08	-3.86	-4.35	0	JPL: "Analysis based on 19 observations spanning .86852 days (2009-Feb-04.62941 to 2009-Feb-05.49793)." Diameter approximately 0.555 km. from mean, weighted H=18.9.

2009 CB3	JPL Sentry	1932	2014-2087	33	1.1e-08	-4.14	-4.66	0	JPL: "Analysis based on 20 observations spanning 1.0339 days (2009-Feb-04.49919 to 2009-Feb-05.5331)." Diameter approximately 0.487 km. from mean, weighted H=19.2.

2009 CR2	NEODyS	1524	2019-2089	20	5.7e-09	-3.61	-3.74	0	NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2009/02/03.304 to 2009/02/04.895."

2009 CA2	NEODyS	1524	2019-2043	5	9.94e-11	-5.75	-6.12	0	NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2009/02/03.535 to 2009/02/04.550."

2009 CZ1	NEODyS	1524	2058-2074	4	1.15e-06	-5.52	-5.70	0	NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2009/02/03.387 to 2009/02/05.268."
2009 CZ1	JPL Sentry	1523	2058-2106	3	1.1e-06	-5.55	-5.72	0	JPL: "Analysis based on 22 observations spanning 1.8816 days (2009-Feb-03.38609 to 2009-Feb-05.26765)." Diameter approximately 0.044 km. from mean, weighted H=24.4.

2009 CZ	JPL Sentry	1523	R E M O V E D						JPL: Risk listing removed at 0950 UTC.

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 5 February '09

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

1932	Noted that JPL Sentry has posted 2009 CB3 as an impact risk - see above Grabbed MPEC 2009-C56 - Comets C/2008 W4, 2008 W5, 2008 W6, 2008 W7 (SOHO) - see above Grabbed MPEC 2009-C57 - Comets C/2008 W8, 2008 W9, 2008 W10, 2008 W11 (SOHO) - see above
1704	Noted that JPL Sentry has posted 2009 CC3 as an impact risk - see above
1523	Noted that NEODyS has posted 2009 CA2 as an impact risk - see above Noted that NEODyS has posted 2009 CR2 as an impact risk - see above Noted that JPL Sentry has removed 2009 CZ as an impact risk - see above Noted that JPL Sentry has updated its 2009 CZ1 risk assessment - see above Noted that NEODyS has posted 2009 CZ1 as an impact risk - see above Grabbed MPEC 2009-C49 - Daily Orbit Update - see above Grabbed MPEC 2009-C50 - 2009 CX2 - see above Grabbed MPEC 2009-C51 - 2009 CY2 - see above Grabbed MPEC 2009-C52 - 2009 CZ2 - see above Grabbed MPEC 2009-C53 - 2009 CA3 - see above Grabbed MPEC 2009-C54 - 2009 CB3 - see above Grabbed MPEC 2009-C55 - 2009 CC3 - see above
0517	Grabbed MPEC 2009-C48 - 2008 LP17 - see above

http://www.HohmannTransfer.com/mn/09/09036_0205.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).