Contents  on 19 June '08

Resources:

The latest A/CC news is available via framed access, RSS news feed 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-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

Observers  on 19 June '08

Eleven observing facilities appear in today's MPEC.

CodeObserver / observatory
H55Astronomical 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
808El Leoncito Obs. in Argentina, 6 in MPEC 2008-M14 -- 2005 RC34, 2002 WP11, 39572, 102873, 3691, 1980
J95Great Shefford Obs. in England, 1 in MPEC 2008-M14 -- 2008 LV16
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2008-M14 -- 2000 AD205
A13Naef Obs. in Switzerland, 3 in MPEC 2008-M14 -- 2008 LQ16, 2005 TU45, 2001 TA45
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2008-M14 -- 2007 LL, 2005 TU45, 54789, 154278, 11398, 8567, 7889
473Remanzacco Obs. in Italy, 1 in MPEC 2008-M14 -- 2008 KN11
H85Silver Spring Obs. in Maryland, 1 in MPEC 2008-M14 -- 2008 LQ16
H53Thompsonville Obs. in Illinois, 5 in MPEC 2008-M14 -- 2008 JT35, 2000 AD205, 7092, 3288, 1866
F85Tiki Obs. in Tahiti, 2 in MPEC 2008-M14 -- 2008 LW16, 2008 LG2
198Wildberg 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 LW16NEODyS14362061-207032.24e-08-5.04-5.150NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2008/06/15.382 to 2008/06/18.541."
JPL Sentry14342061-207031.7e-08-5.15-5.260JPL: "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 LV16NEODyS14362015-2083351.29e-06-2.89-3.260NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2008/06/15.381 to 2008/06/18.286."
JPL Sentry14342015-2083271.2e-06-2.87-3.220JPL: "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 LG2NEODyS14362052-2090152.88e-06-6.00-6.390NEODyS: "Based on 103 optical observations (of which 0 are rejected as outliers) from 2008/06/03.318 to 2008/06/18.283."
JPL Sentry14342038-2108166.6e-06-5.71-6.390JPL: "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 LANEODyS14362058-208062.38e-05-3.83-3.890NEODyS: "Based on 61 optical observations (of which 0 are rejected as outliers) from 2008/06/01.170 to 2008/06/18.128."
JPL Sentry14342058-210782.4e-05-3.82-3.890JPL: "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 KN11NEODyS1435204611.59e-07-5.78-5.780NEODyS: "Based on 119 optical observations (of which 0 are rejected as outliers) from 2008/05/30.335 to 2008/06/18.900."
JPL Sentry1434204612.2e-07-5.65-5.650JPL: "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.

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