2008-03-05 Tracking News

Contents on 5 March '08

IAU Minor Planet Center
- NEOCP Activity -- seven listings: 1 new, 6 updated
- New MPECs -- seven 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 March '08

The MPC's NEO Confirmation Page has 7 listings: 1 new, 6 updated

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new and six updated listings. Of these, six were "one nighters." So far The Tracking News has counted a total of sixteen 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 March '08

Minor Planet Electronic Circulars

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

MPEC 2008-E45 time-stamped "00:02 UT" - 2008 ES5 - see below
MPEC 2008-E46 time-stamped "07:08 UT" - Daily Orbit Update - see below
MPEC 2008-E47 time-stamped "13:00 UT" - 2008 EV5 - see below
MPEC 2008-E48 time-stamped "13:03 UT" - 2008 EW5 - see below
MPEC 2008-E49 time-stamped "13:06 UT" - 2008 EX5 - see below
MPEC 2008-E50 time-stamped "13:10 UT" - 2008 EY5 - see below
MPEC 2008-E51 time-stamped "13:13 UT" - 2008 EZ5

MPEC 2008-E51 - "13:13 UT" - 2008 EZ5

K08E05Z 2008 EZ5 (H=19.3 ~467m) was discovered at 1154 UT on 4 March by the Mt. Lemmon Survey (MLS), which observed it at March 4.50-53p8 and 5.51-53p4. The discovery was confirmed by Mt. John Obs. (March 4.54-56p4) and Great Shefford Obs. (March 5.21-22p2).

MPEC 2008-E50 - "13:10 UT" - 2008 EY5

K08E05Y 2008 EY5 (q=0.236 AU, H=20.1 ~323m) was discovered at 1129 UT on 4 March by the Siding Spring Survey (SSS), which observed it at March 4.48-55p27, 5.40p4, and 5.48p4. The discovery was confirmed by MLS (March 5.10p8) and Jim Young via Table Mtn. Obs. (March 5.17-18p3).

MPEC 2008-E49 - "13:06 UT" - 2008 EX5

K08E05X 2008 EX5 (small asteroid, Earth MOID=0.3 LD, H=23.9 ~56m) was discovered at 0929 UT on 4 March by MLS, which observed it at March 4.40-46p8 and 5.40-42p4. The discovery was confirmed by Great Shefford Obs. (March 5.18-20p3).

MPEC 2008-E48 - "13:03 UT" - 2008 EW5

K08E05W 2008 EW5 (small asteroid, H=24.1 ~51m) was discovered at 0927 UT on 4 March by MLS, which observed it at March 4.39-46p8 and 5.40-42p4. The discovery was confirmed by Great Shefford Obs. (March 5.14-16p3).

MPEC 2008-E47 - "13:00 UT" - 2008 EV5

K08E05V 2008 EV5 (Earth MOID=3.7 LD, H=20.0 ~339m) was discovered at 0508 UT on 4 March by MLS, which observed it at March 4.21-23p4 and 5.11p4. The discovery was confirmed by Great Shefford Obs. (March 4.86-88p3) and the Spacewatch 1.8m telescope (March 5.11-12p3 at V=22.2-4).

<< DOU on 5 Mar. '08 >> MPEC 2008-E46 - "07:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K08D22W 2008 DW22 (small asteroid, arc=5 days, H=25.6 ~26m) from Spacewatch 1.8m (March 4.28-29p3)
K08D04A 2008 DA4 (small asteroid, arc=6 days, H=23.9 ~56m) from McDonald Obs. (March 4.33-35p3), Desert Moon Obs. (March 4.35-41p3), MLS (March 4.36-38p4), and Spacewatch 1.8m (March 4.38p3)
K08D00B 2008 DB (small asteroid, arc=15 days, H=25.6 ~26m) from Spacewatch 1.8m (March 4.41-43p3)
K08A04F 2008 AF4 (arc=54 days, H=19.7 ~389m) from McDonald Obs. (March 4.26-28p3)
Observations of recently (no longer) risk-listed objects
K08E00S 2008 ES (Q=4.393 AU, arc=2 days, H=18.0 ~851m) from Spacewatch 1.8m (March 4.30-32p3)
K08D05K 2008 DK5 (arc=5 days, H=21.1 ~204m) from LINEAR (March 4.38-43p5) and Mt. John Obs. (March 4.49-50p3)
K08D05J 2008 DJ5 (arc=5 days, H=19.8 ~371m) from Spacewatch 1.8m (March 4.32-34p3) and McDonald Obs. (March 4.35-37p3)
K08D00Y 2008 DY (Q=4.319 AU, arc=7 days, H=20.5 ~269m) from Young/Table Mtn. (March 4.31-34p4)
K08D00J 2008 DJ (arc=8 days, H=20.5 ~269m) from Goodricke-Pigott Obs. (March 3.20-23p3) and the Catalina Sky Survey (CSS) (March 4.20-23p4)
K08D00E 2008 DE (arc=21 days, H=19.4 ~446m) from McDonald Obs. (March 4.46-47p3)
K08C06E 2008 CE6 (small asteroid, arc=26 days, H=23.5 ~68m) from McDonald Obs. (March 4.38-41p4)
K08C05A 2008 CA5 (arc=27 days, H=19.8 ~371m) from Mt. John Obs. (March 4.64-65p3)
Observations of small asteroids (H>22.0)
K08E00P 2008 EP (arc=2 days, H=24.2 ~49m) from Greiner Research Obs. (March 4.33-34p16)
K08E00L 2008 EL (arc=21 days, H=22.2 ~123m) from Greiner Research Obs. (March 4.28-29p6)
K08D05H 2008 DH5 (arc=4 days, H=24.2 ~49m) from the Spacewatch 0.9m telescope (March 3.34-38p3)
K08D00X 2008 DX (arc=7 days, H=23.8 ~59m) from MLS (March 4.36-38p4)
K08CB6P 2008 CP116 (arc=80 days, H=22.9 ~89m) from LINEAR (March 4.33-37p5)
K08A33L 2008 AL33 (arc=49 days, H=22.7 ~98m) from Spacewatch 0.9m (March 1.16-20p3 & 4.20p1)
K05EG9Y 2005 EY169 (arc=2 opp, H=22.2 ~123m) from LINEAR (March 4.15-20p4) and Greiner Research Obs. (March 5.07p8)
Observations of almost-small asteroids (21.7<H<=22.0)
K08CB9J 2008 CJ119 (arc=63 days, H=21.8 ~148m) from Desert Moon Obs. (March 4.17-24p3), McDonald Obs. (March 4.24-25p2), and MLS (March 4.26-28p4)
K08C06C 2008 CC6 (q=0.285 AU, arc=17 days, H=22.0 ~135m) from Lumezzane Obs. (Feb. 24.79p4)
Observations of other objects
K08D00W 2008 DW (arc=7 days, H=21.7 ~155m) from Spacewatch 1.8m (March 4.35-36p3) and Desert Moon Obs. (March 4.45-49p3)
K08D00C 2008 DC (arc=15 days, H=20.0 ~339m) from Desert Moon Obs. (March 4.28-32p3)
K08CB8Z 2008 CZ118 (arc=21 days, H=18.4 ~708m) from Desert Moon Obs. (March 4.51-52p3)
K08CB6O 2008 CO116 (arc=22 days, H=21.2 ~195m) from McDonald Obs. (March 4.15-16p3)
K08CB6M 2008 CM116 (arc=23 days, H=17.3 ~1.17 km) from McDonald Obs. (March 4.30-32p3)
K08C72L 2008 CL72 (arc=29 days, H=19.8 ~371m) from Lumezzane Obs. (Feb. 24.88p2)
K08C01N 2008 CN1 (arc=32 days, H=20.6 ~257m) from Brainerd Obs. (March 4.09p3) and Greiner Research Obs. (March 5.04-08p31)
K08C01L 2008 CL1 (arc=32 days, H=19.5 ~426m) from LINEAR (March 4.33-37p5) and Greiner Research Obs. (March 5.08-09p30)
K08C00M 2008 CM (i=36.0°, arc=26 days, H=17.1 ~1.29 km) from Lumezzane Obs. (Feb. 24.77-78p3)
K08B22C 2008 BC22 (arc=53 days, H=19.9 ~355m) from Spacewatch 0.9m (March 2.29-31p2) and Greiner Research Obs. (March 4.34-36p3)
K08AB0Z 2008 AZ110 (Q=4.029 AU, arc=2 opp, H=18.3 ~741m) from McDonald Obs. (March 4.18-20p3)
K07Y00Z 2007 YZ (arc=27 days, H=19.6 ~407m) from Smolyan Obs. (Jan. 14.03p3)
K07X20J 2007 XJ20 (arc=2 opp, H=18.4 ~708m) from MLS (March 4.15-17p4)
K07V07Y 2007 VY7 (arc=3 opp, H=19.6 ~407m) from McDonald Obs. (March 4.50-51p3)
K07V04Q 2007 VQ4 (arc=3 opp, H=15.8 ~2.34 km, q=1.271 AU) from Smolyan Obs. (Jan. 12.08-09p3)
K07T08G 2007 TG8 (Q=4.306 AU, arc=173 days, H=18.6 ~645m) from Brainerd Obs. (March 4.12-14p6)
K06U00A 2006 UA (arc=2 opp, H=20.2 ~309m) from McDonald Obs. (March 4.43-45p3) and Spacewatch 1.8m (March 4.49-51p3)
K06BE8A 2006 BA148 (arc=2 opp, H=18.5 ~676m) from Spacewatch 0.9m (March 1.11-13p2 & 3.11-15p3)
K05T45U 2005 TU45 (arc=3 opp, H=17.0 ~1.35 km) from Smolyan Obs. (Jan. 12.05p2)
K05R34D 2005 RD34 (arc=2 opp, H=20.2 ~309m) from CSS (March 4.30-31p4)
K05F03E 2005 FE3 (arc=2 opp, H=19.4 ~446m) from McDonald Obs. (March 4.21-24p3)
K05E70K 2005 EK70 (arc=4 opp, H=17.4 ~1.12 km) from Smolyan Obs. (Jan. 12.07p3)
K04XG4P 2004 XP164 (arc=3 opp, H=17.5 ~1.07 km) from LINEAR (March 4.16-20p4)
K03Q30Z 2003 QZ30 (arc=4 opp, H=17.4 ~1.12 km) from Spacewatch 0.9m (Feb. 29.48p1 & March 4.40-44p3)
K02T66D 2002 TD66 (arc=4 opp, H=20.3 ~295m) from Lumezzane Obs. (Feb. 24.76p4), Brainerd Obs. (March 4.10-12p6), and Terskol Obs. (March 4.70p9)
H5189 175189 2005 EC224 from Spacewatch 0.9m (March 3.12-15p3)
H0891 170891 2004 TY16 from Urseanu Obs. (March 3.81-83p4), LINEAR (March 4.21-26p5), and Abbeydale Obs. (March 4.83-86p3)
G8318 168318 1989 DA from Desert Moon Obs. (March 4.09-13p3)
G3693 163693 Atira (2003 CP20) from Lumezzane Obs. (Feb. 24.75-76p4)
G3252 163252 2002 GD11 from MLS (March 4.44-46p4)
E1495 141495 2002 EZ11 from Spacewatch 0.9m (March 4.39-41p2)
68278 68278 2001 FC7 from MLS (March 4.50-51p4)
13553 13553 1992 JE from Spacewatch 0.9m (March 2.36-39p3)
09856 9856 1991 EE from MLS (March 4.52-53p4)
09400 9400 1994 TW1 from Spacewatch 0.9m (March 3.40-44p3)
09162 9162 1987 OA from LINEAR (March 4.38-43p5)
07977 7977 1977 QQ5 from LINEAR (March 4.16-21p5)
04954 4954 Eric (1990 SQ) from Malaga Obs. (March 2.82p3)
02059 2059 Baboquivari (1963 UA) from Spacewatch 0.9m (Feb. 29.36-39p3 & March 4.27-31p3)
01866 1866 Sisyphus (1972 XA) from LINEAR (March 4.33-37p5)
01685 1685 Toro (1948 OA) from Urseanu Obs. (March 3.76-80p4)

MPEC 2008-E45 - "00:02 UT" - 2008 ES5

K08E05S 2008 ES5 (small asteroid, Earth MOID=6.8 LD, H=24.8 ~37m) was discovered at 0752 UT on 3 March by MLS, which observed it at March 3.33-34p4, 3.40-41p3, and 4.39p4. The discovery was confirmed by Great Shefford Obs. (March 3.85-88p3).

Observers on 5 March '08

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

Code	Observer / observatory
`J94`	Abbeydale Obs. in England, 1 in MPEC 2008-E46 -- 170891
`726`	Brainerd Obs. in Minnesota, 3 in MPEC 2008-E46 -- 2008 CN1, 2007 TG8, 2002 TD66
`703`	Catalina Sky Survey (CSS) in Arizona, 2 in MPEC 2008-E46 -- 2008 DJ, 2005 RD34
`448`	Desert Moon Obs. in New Mexico, 6 in MPEC 2008-E46 -- 2008 DW, 2008 DC, 2008 DA4, 2008 CZ118, 2008 CJ119, 168318
`683`	Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2008-E46 -- 2008 DJ
`J95`	Great Shefford Obs. in England, 5 in MPECs 2008-E45, 2008-E47, 2008-E48, 2008-E49 & 2008-E51 -- 2008 EZ5, 2008 EX5, 2008 EW5, 2008 EV5, 2008 ES5
`H51`	Greiner Research Obs. in Wisconsin, 6 in MPEC 2008-E46 -- 2008 EP, 2008 EL, 2008 CN1, 2008 CL1, 2008 BC22, 2005 EY169
`704`	LINEAR in New Mexico, 9 in MPEC 2008-E46 -- 2008 DK5, 2008 CP116, 2008 CL1, 2005 EY169, 2004 XP164, 170891, 9162, 7977, 1866
`130`	Lumezzane Obs. in Italy, 5 in MPEC 2008-E46 -- 2008 CM, 2008 CL72, 2008 CC6, 2002 TD66, 163693
`J40`	Malaga Obs. in Spain, 1 in MPEC 2008-E46 -- 4954
`711`	McDonald Obs. in Texas, 12 in MPEC 2008-E46 -- 2008 DJ5, 2008 DE, 2008 DA4, 2008 CO116, 2008 CM116, 2008 CJ119, 2008 CE6, 2008 AZ110, 2008 AF4, 2007 VY7, 2006 UA, 2005 FE3
`474`	Mt. John Obs. in New Zealand, 3 in MPECs 2008-E46 & 2008-E51 -- 2008 EZ5, 2008 DK5, 2008 CA5
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 13 in MPECs 2008-E45, 2008-E46, 2008-E47, 2008-E48, 2008-E49, 2008-E50 & 2008-E51 -- 2008 EZ5, 2008 EY5, 2008 EX5, 2008 EW5, 2008 EV5, 2008 ES5, 2008 DX, 2008 DA4, 2008 CJ119, 2007 XJ20, 68278, 163252, 9856
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2008-E50 -- 2008 EY5
`071`	Smolyan Obs. in Bulgaria, 4 in MPEC 2008-E46 -- 2007 YZ, 2007 VQ4, 2005 TU45, 2005 EK70
`691`	Spacewatch 0.9m telescope in Arizona, 10 in MPEC 2008-E46 -- 2008 DH5, 2008 BC22, 2008 AL33, 2006 BA148, 2003 QZ30, 175189, 141495, 13553, 9400, 2059
`291`	Spacewatch 1.8m telescope in Arizona, 8 in MPECs 2008-E46 & 2008-E47 -- 2008 EV5, 2008 ES, 2008 DW22, 2008 DW, 2008 DJ5, 2008 DB, 2008 DA4, 2006 UA
`6735`	Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2008-E46 & 2008-E50 -- 2008 EY5, 2008 DY
`B18`	Terskol Obs. in Russia, 1 in MPEC 2008-E46 -- 2002 TD66
`A92`	Urseanu Obs. in Romania, 2 in MPEC 2008-E46 -- 170891, 1685

Impact Risk Monitoring on 5 March '08

**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.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
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

2008 EE5	NEODyS	1659	2011-2090	39	9.57e-09	-4.53	-5.30	0	NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2008/03/04.173 to 2008/03/04.818."
2008 EE5	JPL Sentry	0319	2010-2108	529	3.0e-07	-3.10	-3.83	0	JPL: "Analysis based on 11 observations spanning .64547 days (2008-Mar-04.17185 to 2008-Mar-04.81732)." Diameter approximately 0.448 km. from mean, weighted H=19.4.

2008 EK1	NEODyS	1544	2011-2067	7	1.14e-08	-4.21	-4.22	0	NEODyS: "Based on 25 optical observations (of which 5 are rejected as outliers) from 2008/03/04.203 to 2008/03/04.463."

2008 DW22	NEODyS	1543	R E M O V E D

2008 DA4	NEODyS	1544	2088	1	2.81e-11	-10.25	-10.25	0	NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2008/02/27.281 to 2008/03/04.414."
2008 DA4	JPL Sentry	1543	2100	1	1.2e-07	-6.73	-6.73	0	JPL: "Analysis based on 35 observations spanning 6.1328 days (2008-Feb-27.28072 to 2008-Mar-04.4135)." Diameter approximately 0.055 km. from mean, weighted H=24.0.

2008 DB	NEODyS	1544	2046-2090	31	3.08e-05	-4.92	-4.99	0	NEODyS: "Based on 59 optical observations (of which 2 are rejected as outliers) from 2008/02/18.243 to 2008/03/04.430."
2008 DB	JPL Sentry	1543	2046-2108	28	4.8e-05	-4.74	-4.82	0	JPL: "Analysis based on 58 observations spanning 15.188 days (2008-Feb-18.242 to 2008-Mar-04.42958)." Diameter approximately 0.025 km. from mean, weighted H=25.7.

2008 AF4	NEODyS	1544	2078-2089	2	2.65e-05	-2.24	-2.24	1	NEODyS: "Based on 564 optical observations (of which 4 are rejected as outliers) from 2008/01/10.397 to 2008/03/04.281. NOTE: The Virtual Impactor in 2089/01/09.482 in the table above is rated as Torino Scale 1."

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 March '08

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

1659	Noted that NEODyS has posted 2008 EE5 as an impact risk - see above
1544	Noted that NEODyS has updated its 2008 AF4 risk assessment - see above Noted that NEODyS has updated its 2008 DA4 risk assessment - see above Noted that NEODyS has updated its 2008 DB risk assessment - see above Grabbed MPEC 2008-E46 - Daily Orbit Update - see above Grabbed MPEC 2008-E51 - 2008 EZ5 - see above
1543	Noted that JPL Sentry has updated its 2008 DA4 risk assessment - see above Noted that JPL Sentry has updated its 2008 DB risk assessment - see above Noted that NEODyS has removed 2008 DW22 as an impact risk - see above Noted that NEODyS has posted 2008 EK1 as an impact risk - see above Grabbed MPEC 2008-E47 - 2008 EV5 - see above Grabbed MPEC 2008-E48 - 2008 EW5 - see above Grabbed MPEC 2008-E49 - 2008 EX5 - see above Grabbed MPEC 2008-E50 - 2008 EY5 - see above
0319	Noted that JPL Sentry has posted 2008 EE5 as an impact risk - see above
0029	Grabbed MPEC 2008-E45 - 2008 ES5 - see above

http://www.HohmannTransfer.com/mn/08/08065_0305.htm
Publisher information, privacy statement, and disclaimer.
This page is © Copyright 2008 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).