Contents  on 18 February '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 February '09

The MPC's NEO Confirmation Page has 3 listings: 2 new, 1 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and one updated listings. Of these, two were "one nighters."

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 18 February '09

Minor Planet Electronic Circulars

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


MPEC 2009-D21 - "15:43 UT" - Observations of Comets


MPEC 2009-D20 - "15:27 UT" - Comet C/2009 B2 (LINEAR)


MPEC 2009-D19 - "15:23 UT" - Comet P/2008 Y1 (Boattini)


<< DOU on 18 Feb. '09 >>  MPEC 2009-D18 - "07:07 UT" - Daily Orbit Update


MPEC 2009-D17 - "00:10 UT" - 2009 BA71

Observers  on 18 February '09

A total of 63 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 13 in MPECs 2009-D20 & 2009-D21 -- C/2009 B2, C/2008 J1, C/2007 N3, C/2006 Q1, C/2005 L3, 210P, 209P, 204P, 144P, 116P, 29P, 22P, 6P
J24Altamira Obs. in Spain, 12 in MPEC 2009-D21 -- C/2008 T2, C/2008 R3, C/2008 E1, C/2006 OF2, 144P, 74P, 67P, 59P, 29P, 22P, 17P, 6P
H55Astronomical Research Obs. (ARO) in Illinois, 22 in MPEC 2009-D18 -- 2009 DD, 2009 CW1, 2009 CV, 2009 CT5, 2009 CT, 2009 CS, 2009 CR4, 2009 CG, 2009 CC3, 2009 CA3, 2009 CA2, 2009 BM58, 2009 BJ81, 2009 BH2, 2009 BE77, 2009 AV, 2009 AM, 2008 YR27, 2008 WN2, 2008 WC14, 2008 UW5, 2008 FU6
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2009-D21 -- 22P
A81Balzaretto Obs. in Italy, 1 in MPEC 2009-D21 -- C/2006 OF2
B59Borken Obs. in Germany, 2 in MPEC 2009-D21 -- C/2007 N3, 65P
235CAST Obs. in Italy, 9 in MPEC 2009-D21 -- C/2008 T2, C/2006 OF2, 209P, 144P, 116P, 74P, 59P, 29P, 19P
493Calar Alto Obs. in Spain, 1 in MPEC 2009-D18 -- 2004 QG20
J79Calarreona Obs. in Spain, 6 in MPEC 2009-D21 -- P/2008 Y2, C/2006 OF2, 144P, 116P, 74P, 29P
B09Capannoli Obs. in Italy, 4 in MPEC 2009-D21 -- C/2006 OF2, 204P, 116P, 29P
B20Carmelita Obs. in Spain, 5 in MPEC 2009-D21 -- C/2008 T2, C/2007 N3, C/2006 OF2, 144P, 116P
703Catalina Sky Survey (CSS) in Arizona, 27 in MPECs 2009-D17, 2009-D18, 2009-D19 & 2009-D21 -- 2009 BP58, 2009 BK71, 2009 BA71, P/2008 Y1, 2008 UC95, C/2008 R3, P/2008 QP20, 2005 NJ1, 2002 VY94, 1994 AW1, 68031, 22771, 22099, 200840, 198856, 153953, 8567, 5011, 4596, 4183, 3122, 1980, 211P, 74P, 61P, 59P, 17P
A77Chante-Perdrix Obs. in France, 13 in MPEC 2009-D21 -- P/2008 Y2, C/2007 N3, 211P, 204P, 188P, 116P, 74P, 65P, 33P, 17P, 15P, 10P, 6P
850Cordell-Lorenz Obs. in Tennessee, 9 in MPECs 2009-D18 & 2009-D21 -- 2009 CV, 2009 BD77, P/2009 B1, P/2008 Y2, C/2007 N3, C/2006 OF2, 144P, 33P, 29P
J27El Guijo Obs. in Spain, 1 in MPEC 2009-D21 -- 74P
E85Farm Cove Obs. in New Zealand, 1 in MPEC 2009-D21 -- P/2008 Y3
B83Gieres Obs. in France, 6 in MPEC 2009-D21 -- C/2008 T2, C/2006 OF2, 116P, 77P, 74P, 29P
442Gualba Obs. in Spain, 5 in MPEC 2009-D21 -- C/2007 N3, C/2006 OF2, 144P, 59P, 29P
D80Gunma Obs. in Japan, 2 in MPEC 2009-D21 -- P/2008 QP20, 212P
379Hamamatsu-Yuto Obs. in Japan, 3 in MPEC 2009-D21 -- C/2006 OF2, 144P, 116P
B15Inastars Obs. in Germany, 1 in MPEC 2009-D21 -- C/2008 T2
G92Jarnac Obs. in Arizona, 1 in MPEC 2009-D21 -- 74P
704LINEAR in New Mexico, 22 in MPECs 2009-D18 & 2009-D21 -- 2009 BA71, P/2008 Y2, P/2008 T4, 2008 RM98, C/2006 Q1, 2006 BC10, 52768, 35107, 22753, 198752, 18109, 162080, 8567, 6050, 1627, 212P, 209P, 188P, 77P, 61P, 19P, 10P
212La Dehesilla Obs. in Spain, 4 in MPEC 2009-D21 -- 116P, 74P, 29P, 17P
J75La Sagra Obs. in Spain, 1 in MPEC 2009-D17 -- 2009 BA71
J38La Vara Obs. in Spain, 13 in MPEC 2009-D21 -- C/2008 T2, C/2007 N3, C/2006 W3, C/2006 OF2, C/2005 L3, 204P, 144P, 116P, 81P, 67P, 29P, 19P, 17P
B33Libbiano Obs. in Italy, 2 in MPEC 2009-D21 -- 116P, 65P
J59Linceo Obs. in Spain, 3 in MPEC 2009-D21 -- 144P, 116P, 29P
844Los Molinos Obs. in Uruguay, 2 in MPEC 2009-D21 -- 144P, 116P
130Lumezzane Obs. in Italy, 3 in MPEC 2009-D21 -- P/2008 Y3, P/2008 T4, 209P
B82Maidbronn Obs. in Germany, 12 in MPEC 2009-D21 -- C/2008 T2, C/2007 N3, C/2006 W3, C/2006 OF2, 211P, 204P, 144P, 139P, 116P, 74P, 29P, 19P
J40Malaga Obs. in Spain, 5 in MPEC 2009-D21 -- P/2008 Y2, C/2007 N3, 212P, 29P, 17P
A02Masia Cal Maciarol Modul 8 in Spain, 1 in MPEC 2009-D21 -- 29P
232Masquefa Obs. in Spain, 5 in MPEC 2009-D21 -- C/2008 T2, C/2006 OF2, 116P, 74P, 29P
A06Mataro Obs. in Spain, 2 in MPEC 2009-D21 -- 144P, 29P
152Moletai Obs. in Lithuania, 1 in MPEC 2009-D21 -- P/2005 SB216
J46Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2009-D21 -- C/2007 N3
J45Montana Cabreja Obs. in the Canary Islands, 4 in MPEC 2009-D21 -- C/2007 N3, C/2006 OF2, 144P, 29P
213Montcabre Obs. in Spain, 4 in MPEC 2009-D21 -- P/2008 Y2, C/2007 N3, 29P, 17P
945Monte Deva Obs. in Spain, 10 in MPEC 2009-D21 -- C/2008 T2, C/2007 N3, C/2006 W3, C/2006 OF2, 209P, 144P, 116P, 74P, 65P, 29P
900Moriyama Obs. in Japan, 17 in MPEC 2009-D21 -- P/2008 Y3, P/2008 Y2, C/2008 R3, C/2008 E1, C/2006 W3, C/2006 Q1, C/2006 OF2, C/2005 L3, 210P, 209P, 204P, 144P, 116P, 74P, 65P, 33P, 22P
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2009-D17 & 2009-D18 -- 2009 BA71, 2009 AH16
J47Nazaret Obs. in Spain, 6 in MPEC 2009-D21 -- 144P, 116P, 81P, 67P, 29P, 17P
A32Panker Obs. in Germany, 1 in MPEC 2009-D21 -- P/2008 QP20
B49Paus Obs. in Spain, 1 in MPEC 2009-D21 -- 212P
A53Peschiera del Garda Obs. in Italy, 3 in MPEC 2009-D18 -- 2006 WZ2, 206359, 162900
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 6 in MPEC 2009-D21 -- P/2008 Y2, C/2006 OF2, 204P, 144P, 116P, 29P
J53Posadas Obs. in Spain, 8 in MPECs 2009-D18 & 2009-D21 -- C/2008 T2, 2008 EE5, C/2006 OF2, 101873, 144P, 59P, 29P, 17P
473Remanzacco Obs. in Italy, 2 in MPEC 2009-D21 -- P/2008 Y2, 29P
939Rodeno Obs. in Spain, 5 in MPEC 2009-D21 -- C/2008 T2, 144P, 116P, 74P, 29P
104San Marcello Pistoiese Obs. in Italy, 2 in MPEC 2009-D21 -- C/2008 J1, C/2006 OF2
B56Sant Pere Obs. in Spain, 3 in MPEC 2009-D21 -- C/2007 N3, 144P, 29P
204Schiaparelli Obs. in Italy, 16 in MPECs 2009-D19, 2009-D20 & 2009-D21 -- C/2009 B2, P/2009 B1, P/2008 Y2, P/2008 Y1, C/2008 Q1, C/2008 E1, C/2007 N3, C/2006 Q1, C/2006 OF2, C/2005 L3, 211P, 210P, 188P, 144P, 29P, 19P
260&Rob Matson in southern California using the Siding Spring Digitized Sky Survey in New South Wales, 1 in MPEC 2009-D18 -- 2004 QG20
510Siegen Obs. in Germany, 2 in MPEC 2009-D21 -- C/2008 T2, 144P
691Spacewatch 0.9m telescope in Arizona, 7 in MPEC 2009-D18 -- 2009 BK71, 2005 GW119, 2005 EG94, 2002 PG80, 1999 AQ10, 85990, 159504
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2009-D21 -- 117P
J35Tucci Obs. in Spain, 5 in MPEC 2009-D21 -- C/2006 OF2, 144P, 116P, 74P, 29P
H10Tzec Maun Obs. Mayhill in New Mexico, 6 in MPEC 2009-D21 -- P/2008 Y2, C/2008 Q1, 74P, 33P, 29P, 19P
J70Vega del Thader Obs. in Spain, 7 in MPEC 2009-D21 -- P/2008 Y2, C/2007 N3, 144P, 116P, 74P, 29P, 19P
H47Vicksburg Obs. in Mississippi, 5 in MPEC 2009-D21 -- C/2006 OF2, 144P, 116P, 74P, 29P
B42Vitebsk Obs. in Belarus, 3 in MPEC 2009-D21 -- 139P, 117P, 15P
198Wildberg Obs. in Germany, 1 in MPEC 2009-D18 -- 2009 CV
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 February '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 CC3JPL Sentry1420R E M O V E DJPL: Risk listing removed at 0950 UTC.

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 February '09

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

1559Grabbed MPEC 2009-D19 - Comet P/2008 Y1 (Boattini) - see above
Grabbed MPEC 2009-D20 - Comet C/2009 B2 (LINEAR) - see above
Grabbed MPEC 2009-D21 - Observations of Comets - see above
1420Noted that JPL Sentry has removed 2009 CC3 as an impact risk - see above
Grabbed MPEC 2009-D18 - Daily Orbit Update - see above
0349Noted that the NEOCP has become active
0042Grabbed MPEC 2009-D17 - 2009 BA71 - see above