2008-06-19 Tracking News

Contents on 19 June '08

IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- seven MPECs
Observers -- eleven observing facilities
Impact Risk Monitoring -- five 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 19 June '08

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty and hasn't been noted by The Tracking News as being active yet today (last checked at 2357 UTC).

New MPECs on 19 June '08

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there have been seven MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-M14 time-stamped "06:08 UT" - Daily Orbit Update - see below
MPEC 2008-M15 time-stamped "17:44 UT" - Observable Comets - see below
MPEC 2008-M16 time-stamped "17:53 UT" - Distant Minor Planets - see below
MPEC 2008-M17 time-stamped "17:58 UT" - Atens and Apollos - see below
MPEC 2008-M18 time-stamped "17:58 UT" - Amors - see below
MPEC 2008-M19 time-stamped "17:58 UT" - Unusual Minor Planets - see below
MPEC 2008-M20 time-stamped "17:58 UT" - PHAs

MPEC 2008-M20 - "17:58 UT" - PHAs

MPEC 2008-M19 - "17:58 UT" - Unusual Minor Planets

MPEC 2008-M18 - "17:58 UT" - Amors

MPEC 2008-M17 - "17:58 UT" - Atens and Apollos

MPEC 2008-M16 - "17:53 UT" - Distant Minor Planets

MPEC 2008-M15 - "17:44 UT" - Observable Comets

<< DOU on 19 June '08 >> MPEC 2008-M14 - "06:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K08L16W 2008 LW16 (arc=3 days, H=19.8 ~371m) from Astronomical Research Obs. (ARO) (June 18.26-27p5) and Tiki Obs. (June 18.52-54p2)
K08L16V 2008 LV16 (arc=3 days, H=20.0 ~339m) from ARO (June 17.29-30p4 & 18.27-29p4) and Great Shefford Obs. (June 18.04p2)
K08L02G 2008 LG2 (small asteroid, arc=15 days, H=25.2 ~31m) from ARO (June 18.13-14p3) and Tiki Obs. (June 18.22p1 & 18.28p1)
K08L00A 2008 LA (small asteroid, arc=17 days, H=23.2 ~78m) from ARO (June 18.11-13p3)
K08K11N 2008 KN11 (small asteroid, arc=20 days, H=23.2 ~78m) from ARO (June 18.16-17p6) and Remanzacco Obs. (June 18.90p3)
Observations of recently (no longer) risk-listed objects
K08K05Z 2008 KZ5 (arc=20 days, H=20.0 ~339m) from ARO (June 18.13-14p3)
Observations of small asteroids (H>22.0)
K08L02H 2008 LH2 (arc=14 days, H=24.6 ~41m) from ARO (June 18.16-18p3)
Observations of other objects
K08L16Q 2008 LQ16 (arc=5 days, H=20.3 ~295m) from Silver Spring Obs. (June 18.26p1 & 18.32p1), ARO (June 18.30p2), and Naef Obs. (June 18.98-00p4)
K08K02V 2008 KV2 (arc=21 days, H=21.4 ~178m) from ARO (June 18.11-12p3)
K08J35T 2008 JT35 (Q=4.083 AU, arc=45 days, H=21.0 ~214m) from Thompsonville Obs. (June 18.25p6) and Wildberg Obs. (June 18.86-87p6)
K08H03S 2008 HS3 (arc=49 days, H=21.7 ~155m) from ARO (June 18.15p3)
K07L00L 2007 LL (arc=2 opp, H=20.5 ~269m) from Petit Jean Mtn. South Obs. (PJMSO) (June 18.20-21p6)
K06KA3M 2006 KM103 (arc=2 opp, H=20.2 ~309m) from ARO (June 18.21-24p3)
K05V05T 2005 VT5 (arc=2 opp, H=19.2 ~490m) from Wildberg Obs. (June 18.93p3)
K05T45U 2005 TU45 (arc=3 opp, H=17.1 ~1.29 km) from PJMSO (June 18.19-20p5), Wildberg Obs. (June 18.90-91p4), and Naef Obs. (June 18.92-95p3)
K05R34C 2005 RC34 (arc=2 opp, H=19.6 ~407m) from El Leoncito Obs. (June 16.12-14p3)
K02W11P 2002 WP11 (arc=3 opp, H=18.0 ~851m) from El Leoncito Obs. (June 12.17-18p3)
K01T45A 2001 TA45 (arc=4 opp, H=19.1 ~513m) from Naef Obs. (June 18.96-98p2)
K00AK5D 2000 AD205 (arc=2 opp, H=18.6 ~645m) from Thompsonville Obs. (June 18.27p6) and Mirasteilas Obs. (June 19.03-06p3)
F4278 154278 2002 TB9 from PJMSO (June 18.22-24p5)
A2873 102873 1999 WK11 from El Leoncito Obs. (June 12.03-04p3)
54789 54789 2001 MZ7 from PJMSO (June 18.29p5)
39572 39572 1993 DQ1 from El Leoncito Obs. (June 11.98-00p3)
11398 11398 1998 YP11 from PJMSO (June 18.26-27p5)
08567 8567 1996 HW1 from PJMSO (June 18.29-30p5) and Wildberg Obs. (June 18.96-97p3)
07889 7889 1994 LX from PJMSO (June 18.21-22p5)
07092 7092 Cadmus (1992 LC) from Thompsonville Obs. (June 18.15-16p6)
03691 3691 Bede (1982 FT) from El Leoncito Obs. (June 11.96-98p3 & 16.96-98p3)
03288 3288 Seleucus (1982 DV) from Thompsonville Obs. (June 18.19p6)
01980 1980 Tezcatlipoca (1950 LA) from El Leoncito Obs. (June 11.03-05p3, 12.09-11p3 & 13.04-06p3)
01866 1866 Sisyphus (1972 XA) from Thompsonville Obs. (June 18.21-22p6)

Observers on 19 June '08

Eleven observing facilities appear in today's MPEC.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 11 in MPEC 2008-M14 -- 2008 LW16, 2008 LV16, 2008 LQ16, 2008 LH2, 2008 LG2, 2008 LA, 2008 KZ5, 2008 KV2, 2008 KN11, 2008 HS3, 2006 KM103
`808`	El Leoncito Obs. in Argentina, 6 in MPEC 2008-M14 -- 2005 RC34, 2002 WP11, 39572, 102873, 3691, 1980
`J95`	Great Shefford Obs. in England, 1 in MPEC 2008-M14 -- 2008 LV16
`B67`	Mirasteilas Obs. in Switzerland, 1 in MPEC 2008-M14 -- 2000 AD205
`A13`	Naef Obs. in Switzerland, 3 in MPEC 2008-M14 -- 2008 LQ16, 2005 TU45, 2001 TA45
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2008-M14 -- 2007 LL, 2005 TU45, 54789, 154278, 11398, 8567, 7889
`473`	Remanzacco Obs. in Italy, 1 in MPEC 2008-M14 -- 2008 KN11
`H85`	Silver Spring Obs. in Maryland, 1 in MPEC 2008-M14 -- 2008 LQ16
`H53`	Thompsonville Obs. in Illinois, 5 in MPEC 2008-M14 -- 2008 JT35, 2000 AD205, 7092, 3288, 1866
`F85`	Tiki Obs. in Tahiti, 2 in MPEC 2008-M14 -- 2008 LW16, 2008 LG2
`198`	Wildberg Obs. in Germany, 4 in MPEC 2008-M14 -- 2008 JT35, 2005 VT5, 2005 TU45, 8567

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

Impact Risk Monitoring on 19 June '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS at 2357 and JPL at 2358 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 LW16	NEODyS	1436	2061-2070	3	2.24e-08	-5.04	-5.15	0	NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2008/06/15.382 to 2008/06/18.541."
2008 LW16	JPL Sentry	1434	2061-2070	3	1.7e-08	-5.15	-5.26	0	JPL: "Analysis based on 26 observations spanning 3.1588 days (2008-Jun-15.38141 to 2008-Jun-18.54019)." Diameter approximately 0.400 km. from mean, weighted H=19.7.

2008 LV16	NEODyS	1436	2015-2083	35	1.29e-06	-2.89	-3.26	0	NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2008/06/15.381 to 2008/06/18.286."
2008 LV16	JPL Sentry	1434	2015-2083	27	1.2e-06	-2.87	-3.22	0	JPL: "Analysis based on 29 observations spanning 2.9053 days (2008-Jun-15.3798 to 2008-Jun-18.285133)." Diameter approximately 0.342 km. from mean, weighted H=20.0.

2008 LG2	NEODyS	1436	2052-2090	15	2.88e-06	-6.00	-6.39	0	NEODyS: "Based on 103 optical observations (of which 0 are rejected as outliers) from 2008/06/03.318 to 2008/06/18.283."
2008 LG2	JPL Sentry	1434	2038-2108	16	6.6e-06	-5.71	-6.39	0	JPL: "Analysis based on 103 observations spanning 14.965 days (2008-Jun-03.31737 to 2008-Jun-18.28216)." Diameter approximately 0.030 km. from mean, weighted H=25.3.

2008 LA	NEODyS	1436	2058-2080	6	2.38e-05	-3.83	-3.89	0	NEODyS: "Based on 61 optical observations (of which 0 are rejected as outliers) from 2008/06/01.170 to 2008/06/18.128."
2008 LA	JPL Sentry	1434	2058-2107	8	2.4e-05	-3.82	-3.89	0	JPL: "Analysis based on 61 observations spanning 16.958 days (2008-Jun-01.16922 to 2008-Jun-18.127447)." Diameter approximately 0.076 km. from mean, weighted H=23.2.

2008 KN11	NEODyS	1435	2046	1	1.59e-07	-5.78	-5.78	0	NEODyS: "Based on 119 optical observations (of which 0 are rejected as outliers) from 2008/05/30.335 to 2008/06/18.900."
2008 KN11	JPL Sentry	1434	2046	1	2.2e-07	-5.65	-5.65	0	JPL: "Analysis based on 119 observations spanning 19.565 days (2008-May-30.33435 to 2008-Jun-18.89887)." Diameter approximately 0.076 km. from mean, weighted H=23.3.

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 19 June '08

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

1714	Grabbed MPEC 2008-M16 - Distant Minor Planets - see above Grabbed MPEC 2008-M17 - Atens and Apollos - see above Grabbed MPEC 2008-M18 - Amors - see above
1713	Grabbed MPEC 2008-M15 - Observable Comets - see above Grabbed MPEC 2008-M19 - Unusual Minor Planets - see above Grabbed MPEC 2008-M20 - PHAs - see above
1436	Noted that NEODyS has updated its 2008 LA risk assessment - see above Noted that NEODyS has updated its 2008 LG2 risk assessment - see above Noted that NEODyS has updated its 2008 LV16 risk assessment - see above Noted that NEODyS has updated its 2008 LW16 risk assessment - see above
1435	Noted that NEODyS has updated its 2008 KN11 risk assessment - see above Grabbed MPEC 2008-M14 - Daily Orbit Update - see above
1434	Noted that JPL Sentry has updated its 2008 KN11 risk assessment - see above Noted that JPL Sentry has updated its 2008 LA risk assessment - see above Noted that JPL Sentry has updated its 2008 LG2 risk assessment - see above Noted that JPL Sentry has updated its 2008 LV16 risk assessment - see above Noted that JPL Sentry has updated its 2008 LW16 risk assessment - see above

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