Contents  on 30 May '08


NOTE: These news page will update less often and at sometimes irregular intervals from May 31st through approximately June 7th.

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 30 May '08

The MPC's NEO Confirmation Page has 3 listings: 3 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three updated listings. All of these were "one nighters." So far The Tracking News has counted a total of twelve 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 30 May '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been eight MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-K64 - "17:54 UT" - 2008 KF6

MPEC 2008-K63 - "13:00 UT" - 2008 KE6

MPEC 2008-K62 - "12:54 UT" - 2008 KD6

MPEC 2008-K61 - "12:50 UT" - 2008 KC6

MPEC 2008-K60 - "12:47 UT" - 2008 KB6

MPEC 2008-K59 - "12:44 UT" - 2008 KA6

MPEC 2008-K58 - "12:40 UT" - 2008 KZ5

<< DOU on 30 May '08 >>  MPEC 2008-K57 - "06:08 UT" - Daily Orbit Update

Observers  on 30 May '08

Fifteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 21 in MPECs 2008-K57 & 2008-K58 -- 2008 KZ5, 2008 KW2, 2008 KV2, 2008 KT, 2008 KQ, 2008 KO, 2008 JW19, 2008 JS26, 2008 JS19, 2008 JO14, 2008 JJ, 2008 HD3, 2008 HC2, 2008 GU3, 2008 GR3, 2008 GO20, 2008 EZ97, 2008 EO6, 2008 CD22, 2006 FX, 2004 TB18
J51Atlante Obs. in the Canary Islands, 4 in MPEC 2008-K57 -- 2008 JJ, 2008 HS3, 7889, 1917
807,Ovidiu Vaduvescu via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 5 in MPECs 2008-K57 & 2008-K63 -- 2008 KE6, 2008 JZ7, 2008 JO, 2008 HF2, 2008 FS6
F654Jim Bedient in Hawaii via Faulkes Telescope North in Hawaii, 5 in MPECs 2008-K57 & 2008-K58 -- 2008 KZ5, 2008 KP, 2008 JS19, 2008 HO3, 2001 XW266
442Gualba Obs. in Spain, 1 in MPEC 2008-K57 -- 35107
5682David Tholen's team on Mauna Kea in Hawaii, 2 in MPEC 2008-K57 -- 2008 HH, 2001 XW266
932McCarthy Obs. in Connecticut, 3 in MPEC 2008-K57 -- 2008 KW2, 2008 KV2, 2008 KO
474Mt. John Obs. in New Zealand, 4 in MPECs 2008-K59, 2008-K60, 2008-K61 & 2008-K64 -- 2008 KF6, 2008 KC6, 2008 KB6, 2008 KA6
G96Mt. Lemmon Survey (MLS) in Arizona, 17 in MPECs 2008-K57, 2008-K58, 2008-K59, 2008-K60, 2008-K61, 2008-K62 & 2008-K63 -- 2008 KZ5, 2008 KE6, 2008 KD6, 2008 KC6, 2008 KB6, 2008 KA6, 2008 JN, 2008 BT18, 2007 PA8, 2007 GS3, 2004 XM29, 2004 JG6, 2000 WM107, 2000 QW7, 85989, 65690, 154453
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2008-K58 -- 2008 KZ5
E12Siding Spring Survey (SSS) in New South Wales, 5 in MPECs 2008-K57 & 2008-K64 -- 2008 KF6, 2008 BC22, 2004 HE62, 85839, 185702
691Spacewatch 0.9m telescope in Arizona, 4 in MPECs 2008-K57 & 2008-K58 -- 2008 KZ5, 2008 JR26, 89958, 31210
291Spacewatch 1.8m telescope in Arizona, 3 in MPECs 2008-K57, 2008-K58 & 2008-K59 -- 2008 KZ5, 2008 KO, 2008 KA6
6735Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2008-K63 -- 2008 KE6
F85Tiki Obs. in Tahiti, 2 in MPEC 2008-K57 -- 2008 KW2, 2008 KV2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 30 May '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2354 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.





Notes for Today's Latest Risk Assessments
2008 KF6JPL Sentry22272023-2107781.3e-07-6.26-7.160JPL: "Analysis based on 11 observations spanning .09149 days (2008-May-30.61913 to 2008-May-30.71062)." Diameter approximately 0.069 km. from mean, weighted H=23.5.
2008 KZ5JPL Sentry15362013-21071721.6e-06-3.07-3.440JPL: "Analysis based on 27 observations spanning 1.1941 days (2008-May-29.22802 to 2008-May-30.42214)." Diameter approximately 0.350 km. from mean, weighted H=20.0.
2008 KX2NEODyS1404203911.46e-10-9.61-9.610NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2008/05/29.266 to 2008/05/29.426."
2008 KTNEODyS14042017-2090238.5e-05-5.94-6.100NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2008/05/28.255 to 2008/05/29.250."
JPL Sentry14032019-2085288.8e-05-5.93-6.090JPL: "Analysis based on 19 observations spanning .99537 days (2008-May-28.25417 to 2008-May-29.249539)." Diameter approximately 0.008 km. from mean, weighted H=28.2.
2008 KONEODyS14042049-206131.04e-06-5.27-5.600NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2008/05/27.377 to 2008/05/29.449."
JPL Sentry14032049-206131.1e-06-5.24-5.570JPL: "Analysis based on 25 observations spanning 2.0725 days (2008-May-27.3758 to 2008-May-29.44826)." Diameter approximately 0.047 km. from mean, weighted H=24.3.

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 30 May '08

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

2227Noted that JPL Sentry has posted 2008 KF6 as an impact risk - see above
1933Grabbed MPEC 2008-K64 - 2008 KF6 - see above
1536Noted that JPL Sentry has posted 2008 KZ5 as an impact risk - see above
1404Noted that NEODyS has updated its 2008 KO risk assessment - see above
Noted that NEODyS has updated its 2008 KT risk assessment - see above
1403Noted that JPL Sentry has updated its 2008 KO risk assessment - see above
Noted that JPL Sentry has updated its 2008 KT risk assessment - see above
Grabbed MPEC 2008-K57 - Daily Orbit Update - see above
Grabbed MPEC 2008-K58 - 2008 KZ5 - see above
Grabbed MPEC 2008-K59 - 2008 KA6 - see above
Grabbed MPEC 2008-K60 - 2008 KB6 - see above
Grabbed MPEC 2008-K61 - 2008 KC6 - see above
Grabbed MPEC 2008-K62 - 2008 KD6 - see above
Grabbed MPEC 2008-K63 - 2008 KE6 - see above
1402Noted that NEODyS has posted 2008 KX2 as an impact risk - see above