Contents  on 19 May '09

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 May '09

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty. There were two listings noted earlier today.

New MPECs  on 19 May '09

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been four MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2009-K22 - "20:15 UT" - 2009 KY1


MPEC 2009-K21 - "19:40 UT" - 2009 DV42


MPEC 2009-K20 - "15:21 UT" - Comet C/2009 K2 (Catalina)


<< DOU on 19 May '09 >>  MPEC 2009-K19 - "06:08 UT" - Daily Orbit Update

Observers  on 19 May '09

A total of 28 observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 11 in MPECs 2009-K19, 2009-K20 & 2009-K22 -- 2009 KY1, C/2009 K2, 2009 JQ2, 2009 JM2, 2009 HU77, 2009 HG, 2009 DV42, 2009 DO1, 2009 BB11, 2008 YK2, 2000 EV106
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2009-K19 -- 2009 JM2
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2009-K20 -- C/2009 K2
I32Beta Orionis Obs. in Argentina, 2 in MPEC 2009-K19 -- 194386, 136617
300Bisei Spaceguard Center in Japan, 1 in MPEC 2009-K22 -- 2009 KY1
160Castelmartini Obs. in Italy, 2 in MPEC 2009-K19 -- 2009 JM2, 143651
703Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2009-K19 & 2009-K20 -- C/2009 K2, 2000 FL1, 68350, 38086, 138883
448Desert Moon Obs. in New Mexico, 2 in MPEC 2009-K19 -- 2009 JL1, 2009 HG
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2009-K22 -- 2009 KY1
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2009-K20 -- C/2009 K2
J95Great Shefford Obs. in England, 1 in MPEC 2009-K20 -- C/2009 K2
A17Guidestar Obs. in Germany, 1 in MPEC 2009-K19 -- 155334
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2009-K19 -- 2009 JM2
J75La Sagra Obs. in Spain, 3 in MPECs 2009-K19 & 2009-K22 -- 2009 KY1, 40329, 142781
560Madonna di Dossobuono Obs. in Italy, 1 in MPEC 2009-K19 -- 2009 JM2
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2009-K20 -- C/2009 K2
B90Malina River Obs. in Italy, 2 in MPEC 2009-K19 -- 2009 HV44, 2002 MQ3
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPEC 2009-K19 -- 2009 HY51, 213053
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2009-K21 -- 2009 DV42
A13Naef Obs. in Switzerland, 6 in MPECs 2009-K19 & 2009-K20 -- C/2009 K2, 2009 HV44, 2000 OB22, 24445, 159399, 138883
H45Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2009-K19 -- 2009 JG2
D29Purple Mtn. Obs. XuYi Station in China, 1 in MPEC 2009-K19 -- 142781
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-K20 -- C/2009 K2
H36Sandlot Obs. in Kansas, 2 in MPECs 2009-K20 & 2009-K22 -- 2009 KY1, C/2009 K2
260&Rob Matson in southern California using the Siding Spring Digitized Sky Survey in New South Wales, 1 in MPEC 2009-K21 -- 2009 DV42
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2009-K19 -- 2009 JK1, 2009 EQ2
673Table Mtn. Obs. in southern California, 1 in MPEC 2009-K20 -- C/2009 K2
6735Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2009-K19 & 2009-K22 -- 2009 KY1, 2009 JM2
198Wildberg Obs. in Germany, 1 in MPEC 2009-K19 -- 2009 JM2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 19 May '09

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS 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.
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 KNNEODyS13162016-2089501.74e-09-6.08-6.670NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2009/05/17.376 to 2009/05/18.410."
2009 KMNEODyS13162041-2085122.46e-08-5.04-5.270NEODyS: "Based on 27 optical observations (of which 0 are rejected as outliers) from 2009/05/17.261 to 2009/05/18.335."
2009 KKNEODyS13162013-2057181.0e-05-2.19-2.500NEODyS: "Based on 34 optical observations (of which 0 are rejected as outliers) from 2009/05/17.261 to 2009/05/18.294."

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 May '09

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

2030Grabbed MPEC 2009-K22 - 2009 KY1 - see above
2020Noted that the NEOCP has become empty
1942Grabbed MPEC 2009-K21 - 2009 DV42 - see above
1632Grabbed MPEC 2009-K20 - Comet C/2009 K2 (Catalina) - see above
1316Noted that NEODyS has posted 2009 KK as an impact risk - see above
Noted that NEODyS has posted 2009 KM as an impact risk - see above
Noted that NEODyS has posted 2009 KN as an impact risk - see above
Grabbed MPEC 2009-K19 - Daily Orbit Update - see above