Contents  on 18 August '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 18 August '09

The MPC's NEO Confirmation Page has 8 listings: 3 new, 5 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and five updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of sixteen listings on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs  on 18 August '09

Minor Planet Electronic Circulars

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


MPEC 2009-Q19 - "21:29 UT" - 2009 QJ2


MPEC 2009-Q18 - "21:06 UT" - 2009 QH2


MPEC 2009-Q17 - "21:03 UT" - 2009 QG2


MPEC 2009-Q16 - "18:29 UT" - 2009 QW1


MPEC 2009-Q15 - "16:35 UT" - 2004 XJ3


MPEC 2009-Q14 - "16:12 UT" - Comet C/2009 P2 (Boattini)


<< DOU on 18 Aug. '09 >>  MPEC 2009-Q13 - "06:07 UT" - Daily Orbit Update

Observers  on 18 August '09

A total of 38 observing facilities appear in today's MPECs.

CodeObserver / observatory
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2009-Q13 -- 2009 MX6
H55Astronomical Research Obs. (ARO) in Illinois, 16 in MPECs 2009-Q13 & 2009-Q14 -- 2009 PU1, 2009 PQ1, 2009 PH, C/2009 P2, 2009 OZ7, 2009 OP9, 2009 OC3, 2009 NL, 2009 NH, 2009 NA, 2009 MX6, 2009 ML1, 2009 KJ22, 2009 JK1, 2009 HB82, 2005 TG
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2009-Q13 -- 2002 NP1
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2009-Q13 -- 2009 QC
235CAST Obs. in Italy, 2 in MPECs 2009-Q17 & 2009-Q18 -- 2009 QH2, 2009 QG2
160Castelmartini Obs. in Italy, 4 in MPECs 2009-Q13 & 2009-Q17 -- 2009 QG2, 2009 KL2, 2005 MC, 217390
703Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2009-Q13, 2009-Q14, 2009-Q17 & 2009-Q18 -- 2009 QH2, 2009 QG2, C/2009 P2, 1999 RP36, 217430, 5626
G58Chabot Obs. in northern California, 1 in MPEC 2009-Q14 -- C/2009 P2
113Drebach Obs. in Germany, 1 in MPEC 2009-Q14 -- C/2009 P2
151Eschenberg Obs. in Switzerland, 3 in MPECs 2009-Q14, 2009-Q17 & 2009-Q18 -- 2009 QH2, 2009 QG2, C/2009 P2
J95Great Shefford Obs. in England, 3 in MPECs 2009-Q13, 2009-Q14 & 2009-Q17 -- 2009 QS, 2009 QG2, C/2009 P2
E16Grove Creek Obs. in New South Wales, 1 in MPEC 2009-Q19 -- 2009 QJ2
442Gualba Obs. in Spain, 1 in MPEC 2009-Q13 -- 2009 NE
A17Guidestar Obs. in Germany, 2 in MPECs 2009-Q14 & 2009-Q18 -- 2009 QH2, C/2009 P2
379Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2009-Q13 -- 2009 NH, 2002 NP1
704LINEAR in New Mexico, 4 in MPEC 2009-Q13 -- 30825, 6455, 5786, 5626
J75La Sagra Obs. in Spain, 1 in MPEC 2009-Q13 -- 2002 NP1
232Masquefa Obs. in Spain, 1 in MPEC 2009-Q14 -- C/2009 P2
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2009-Q15 -- 2004 XJ3
118Modra Obs. in Slovakia, 1 in MPEC 2009-Q14 -- C/2009 P2
J93Mt. Tuffley Obs. in England, 2 in MPEC 2009-Q13 -- 17274, 433
A13Naef Obs. in Switzerland, 3 in MPECs 2009-Q13 & 2009-Q14 -- C/2009 P2, 2009 NH, 2009 CS1
J69North Obs. in England, 2 in MPEC 2009-Q13 -- 217390, 163697
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPEC 2009-Q13 -- 2009 OC, 2009 NH, 2009 NA, 2009 ML1, 2009 LX, 2009 HB82, 2005 MC, 2002 NW16
J53Posadas Obs. in Spain, 1 in MPEC 2009-Q13 -- 217390
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-Q14 -- C/2009 P2
D90|program code "|" (32) via RAS Obs. Moorook in South Australia, 1 in MPEC 2009-Q13 -- 3552
I20Rio Cuarto Obs. in Argentina, 4 in MPEC 2009-Q13 -- 2009 PU1, 2009 OX5, 2004 RK9, 159402
E12Siding Spring Survey (SSS) in New South Wales, 3 in MPECs 2009-Q13, 2009-Q16 & 2009-Q19 -- 2009 QW1, 2009 QJ2, 2009 PY
587Sormano Obs. in Italy, 1 in MPEC 2009-Q14 -- C/2009 P2
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-Q13 -- 5626
291Spacewatch 1.8m telescope in Arizona, 12 in MPECs 2009-Q13 & 2009-Q14 -- 2009 PT2, 2009 PH, 2009 PC, C/2009 P2, 2009 ME9, 2006 HX5, 2004 UV1, 2004 TB18, 2002 JE9, 2001 SG262, 1991 GO, 5626
673Table Mtn. Obs. in southern California, 1 in MPEC 2009-Q14 -- C/2009 P2
6733program code 3 via Table Mtn. Obs. in southern California, 1 in MPEC 2009-Q18 -- 2009 QH2
B01Taunus Obs. in Germany, 1 in MPEC 2009-Q14 -- C/2009 P2
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2009-Q14 -- C/2009 P2
B42Vitebsk Obs. in Belarus, 1 in MPEC 2009-Q14 -- C/2009 P2
198Wildberg Obs. in Germany, 1 in MPEC 2009-Q18 -- 2009 QH2
A79Zvezdno Obshtestvo Obs. in Bulgaria, 2 in MPECs 2009-Q14 & 2009-Q19 -- 2009 QJ2, C/2009 P2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 August '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 QRNEODyS17072067-209024.17e-09-9.94-9.980NEODyS: "Based on 27 optical observations (of which 5 are rejected as outliers) from 2009/08/17.244 to 2009/08/17.880."

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 18 August '09

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

2132Grabbed MPEC 2009-Q17 - 2009 QG2 - see above
Grabbed MPEC 2009-Q18 - 2009 QH2 - see above
Grabbed MPEC 2009-Q19 - 2009 QJ2 - see above
1833Grabbed MPEC 2009-Q16 - 2009 QW1 - see above
1707Noted that NEODyS has posted 2009 QR as an impact risk - see above
Grabbed MPEC 2009-Q14 - Comet C/2009 P2 (Boattini) - see above
Grabbed MPEC 2009-Q15 - 2004 XJ3 - see above
1400Grabbed MPEC 2009-Q13 - Daily Orbit Update - see above