Contents  on 23 November '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 23 November '09

The MPC's NEO Confirmation Page has 8 listings: 1 new, 7 updated

When last checked at 2309 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and seven updated listings. Of these, seven were "one nighters." The Tracking News counted a total of 38 listings on the NEOCP at some point on this day.

New MPECs  on 23 November '09

Minor Planet Electronic Circulars

There were 22 MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2009-W85 - "20:55 UT" - 2009 WS52


MPEC 2009-W84 - "20:51 UT" - 2009 WR52


MPEC 2009-W83 - "20:43 UT" - 2009 WQ52


MPEC 2009-W82 - "19:52 UT" - 2008 FT6


MPEC 2009-W81 - "18:43 UT" - 2009 WD52


MPEC 2009-W80 - "18:38 UT" - 2009 WB52


MPEC 2009-W79 - "18:33 UT" - 2009 WA52


MPEC 2009-W78 - "18:28 UT" - 2009 WZ51


MPEC 2009-W77 - "18:24 UT" - 2009 WY51


MPEC 2009-W76 - "18:16 UT" - 2009 WX51


MPEC 2009-W75 - "17:43 UT" - 2009 WV51


MPEC 2009-W74 - "12:41 UT" - 2009 WC26


<< DOU on 23 Nov. '09 >>  MPEC 2009-W73 - "07:12 UT" - Daily Orbit Update


MPEC 2009-W72 - "02:17 UT" - 2009 WW25


MPEC 2009-W71 - "02:08 UT" - 2009 WV25


MPEC 2009-W70 - "02:01 UT" - 2009 WU25


MPEC 2009-W69 - "01:58 UT" - 2009 WT25


MPEC 2009-W68 - "01:52 UT" - 2009 WS25


MPEC 2009-W67 - "01:42 UT" - 2009 WR25


MPEC 2009-W66 - "01:39 UT" - 2009 WQ25


MPEC 2009-W65 - "01:34 UT" - 2009 WP25


MPEC 2009-W64 - "00:36 UT" - 2009 WN25

Observers  on 23 November '09

A total of 31 observing facilities appeared in this day's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 29 in MPECs 2009-W64, 2009-W65, 2009-W66, 2009-W67, 2009-W68, 2009-W70, 2009-W72, 2009-W73, 2009-W74, 2009-W76, 2009-W78, 2009-W79, 2009-W80 & 2009-W81 -- 2009 WZ7, 2009 WZ51, 2009 WY7, 2009 WX7, 2009 WX6, 2009 WX51, 2009 WW25, 2009 WU25, 2009 WS25, 2009 WR25, 2009 WQ25, 2009 WP25, 2009 WO8, 2009 WN25, 2009 WN, 2009 WM8, 2009 WM1, 2009 WL1, 2009 WF, 2009 WD52, 2009 WC26, 2009 WB52, 2009 WB, 2009 WA52, 2009 WA, 2009 VW, 2009 UN, 2009 UM3, 2009 UE19
A81Balzaretto Obs. in Italy, 1 in MPEC 2009-W73 -- 4015
I77CEAMIG-REA in Brazil, 1 in MPEC 2009-W67 -- 2009 WR25
703Catalina Sky Survey (CSS) in Arizona, 24 in MPECs 2009-W64, 2009-W65, 2009-W71, 2009-W72, 2009-W73, 2009-W74, 2009-W75, 2009-W76 & 2009-W81 -- 2009 WX51, 2009 WW25, 2009 WV51, 2009 WV25, 2009 WP25, 2009 WN25, 2009 WM1, 2009 WD52, 2009 WD11, 2009 WC26, 2009 UE19, 2009 SF2, 2009 RN, 2007 UR3, 2005 RQ6, 2002 VT85, 2001 UW16, 1998 HJ3, 22753, 217807, 177651, 153271, 138852, 4015
448Desert Moon Obs. in New Mexico, 6 in MPEC 2009-W73 -- 2009 WO6, 2009 VA1, 2009 SX1, 2009 QL8, 2004 XD50, 9950
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPECs 2009-W65 & 2009-W73 -- 2009 WV25, 2009 WR25, 2009 WP25, 2009 WN25
J27El Guijo Obs. in Spain, 1 in MPEC 2009-W73 -- 2005 RQ6
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-W65 -- 2009 WP25
B21Gaisberg Obs. in Austria, 1 in MPEC 2009-W70 -- 2009 WU25
651Grasslands Obs. in Arizona, 6 in MPECs 2009-W64, 2009-W67, 2009-W70, 2009-W71, 2009-W72 & 2009-W76 -- 2009 WX51, 2009 WW25, 2009 WV25, 2009 WU25, 2009 WR25, 2009 WN25
J95Great Shefford Obs. in England, 2 in MPECs 2009-W67 & 2009-W70 -- 2009 WU25, 2009 WR25
A17Guidestar Obs. in Germany, 1 in MPEC 2009-W64 -- 2009 WN25
J28Jaen Obs. in Spain, 3 in MPECs 2009-W67, 2009-W71 & 2009-W72 -- 2009 WW25, 2009 WV25, 2009 WR25
704LINEAR in New Mexico, 6 in MPECs 2009-W67, 2009-W70, 2009-W71 & 2009-W73 -- 2009 WV25, 2009 WU25, 2009 WR25, 2009 WB, 2009 UK28, 6239
H01Magdalena Ridge Obs. (MRO) in New Mexico, 19 in MPECs 2009-W64, 2009-W65, 2009-W66, 2009-W67, 2009-W68, 2009-W69, 2009-W70, 2009-W72, 2009-W73, 2009-W74, 2009-W75, 2009-W76, 2009-W77, 2009-W78, 2009-W79, 2009-W80, 2009-W81 & 2009-W83 -- 2009 WZ51, 2009 WY51, 2009 WX51, 2009 WW25, 2009 WV51, 2009 WU25, 2009 WT25, 2009 WS25, 2009 WR25, 2009 WQ52, 2009 WQ25, 2009 WP25, 2009 WN25, 2009 WM1, 2009 WK6, 2009 WD52, 2009 WC26, 2009 WB52, 2009 WA52
J40Malaga Obs. in Spain, 1 in MPEC 2009-W73 -- 4015
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2009-W82 -- 2008 FT6
932McCarthy Obs. in Connecticut, 13 in MPECs 2009-W64, 2009-W65, 2009-W67, 2009-W70, 2009-W71, 2009-W72, 2009-W73, 2009-W76 & 2009-W81 -- 2009 WX51, 2009 WW25, 2009 WV25, 2009 WU25, 2009 WR25, 2009 WP25, 2009 WN25, 2009 WD52, 2009 SX1, 2009 SF2, 2008 WB59, 2004 TB18, 2003 WR21
118Modra Obs. in Slovakia, 1 in MPEC 2009-W65 -- 2009 WP25
900Moriyama Obs. in Japan, 2 in MPECs 2009-W75 & 2009-W76 -- 2009 WX51, 2009 WV51
G96Mt. Lemmon Survey (MLS) in Arizona, 14 in MPECs 2009-W66, 2009-W68, 2009-W69, 2009-W71, 2009-W73, 2009-W78, 2009-W79, 2009-W80, 2009-W81, 2009-W83, 2009-W84 & 2009-W85 -- 2009 WZ51, 2009 WW25, 2009 WV25, 2009 WT25, 2009 WS52, 2009 WS25, 2009 WR52, 2009 WQ52, 2009 WQ25, 2009 WD52, 2009 WB52, 2009 WA52, 2006 HZ51, 23714
J47Nazaret Obs. in Spain, 1 in MPEC 2009-W73 -- 4015
B49Paus Obs. in Spain, 1 in MPEC 2009-W71 -- 2009 WV25
H06.Cristovao Jacques in Brazil via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-W64 -- 2009 WN25
H06|H. Sato in Japan via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-W64 -- 2009 WN25
854Sabino Canyon Obs. in Arizona, 5 in MPECs 2009-W65, 2009-W68, 2009-W74, 2009-W78 & 2009-W81 -- 2009 WZ51, 2009 WS25, 2009 WP25, 2009 WD52, 2009 WC26
H36Sandlot Obs. in Kansas, 6 in MPECs 2009-W70, 2009-W75, 2009-W76, 2009-W77, 2009-W78 & 2009-W81 -- 2009 WZ51, 2009 WY51, 2009 WX51, 2009 WV51, 2009 WU25, 2009 WD52
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2009-W73 -- 2009 ST19
204Schiaparelli Obs. in Italy, 3 in MPECs 2009-W65, 2009-W67 & 2009-W68 -- 2009 WS25, 2009 WR25, 2009 WP25
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2009-W69 & 2009-W77 -- 2009 WY51, 2009 WT25
291Spacewatch 1.8m telescope in Arizona, 17 in MPECs 2009-W66, 2009-W67, 2009-W68, 2009-W69, 2009-W70, 2009-W73, 2009-W77, 2009-W79 & 2009-W80 -- 2009 WY51, 2009 WW7, 2009 WU25, 2009 WT25, 2009 WS25, 2009 WR25, 2009 WQ25, 2009 WM1, 2009 WL6, 2009 WK6, 2009 WJ1, 2009 WB52, 2009 WA52, 2009 VZ25, 2009 SV17, 2003 QH5, 162273
926Tenagra II Obs. in Arizona, 13 in MPECs 2009-W65, 2009-W67, 2009-W68, 2009-W73, 2009-W75, 2009-W78, 2009-W79, 2009-W80, 2009-W81, 2009-W83, 2009-W84 & 2009-W85 -- 2009 WZ51, 2009 WW25, 2009 WV51, 2009 WV25, 2009 WS52, 2009 WS25, 2009 WR52, 2009 WR25, 2009 WQ52, 2009 WP25, 2009 WD52, 2009 WB52, 2009 WA52
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 23 November '09

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2309 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 WR52JPL Sentry23592027-21093091.2e-05-6.68-7.310JPL: "Analysis based on 11 observations spanning .18015 days (2009-Nov-23.21917 to 2009-Nov-23.39932)." Diameter approximately 0.006 km. from mean, weighted H=28.7.
2009 WQ52JPL Sentry23092037-2098109.3e-07-7.37-7.610JPL: "Analysis based on 15 observations spanning .18531 days (2009-Nov-23.19879 to 2009-Nov-23.3841)." Diameter approximately 0.008 km. from mean, weighted H=28.1.
2009 WX51JPL Sentry20312016-21081432.0e-07-3.89-4.580JPL: "Analysis based on 23 observations spanning 1.3054 days (2009-Nov-22.24934 to 2009-Nov-23.55478)." Diameter approximately 0.332 km. from mean, weighted H=20.0.
2009 WQ25NEODyS1522208316.27e-09-7.61-7.610NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2009/11/21.164 to 2009/11/22.246."
JPL Sentry0523208311.2e-10-9.38-9.380JPL: "Analysis based on 21 observations spanning 1.0821 days (2009-Nov-21.16281 to 2009-Nov-22.24493)." Diameter approximately 0.054 km. from mean, weighted H=24.0.
2009 WW7JPL Sentry15222050-2108263.7e-05-6.63-7.060JPL: "Analysis based on 28 observations spanning 2.9463 days (2009-Nov-19.23811 to 2009-Nov-22.18436)." Diameter approximately 0.006 km. from mean, weighted H=28.9.
NEODyS15222050-2089131.39e-05-6.99-7.090NEODyS: "Based on 29 optical observations (of which 1 are rejected as outliers) from 2009/11/19.239 to 2009/11/22.185."
2009 WK6NEODyS1522R E M O V E D-
2009 WM1JPL Sentry18122018-21061031.5e-04-1.05-1.331JPL: "Analysis based on 46 observations spanning 5.0667 days (2009-Nov-17.4641 to 2009-Nov-22.53083)." Diameter approximately 0.280 km. from mean, weighted H=20.4.
NEODyS15222018-20901041.38e-04-1.07-1.361NEODyS: "Based on 46 optical observations (of which 0 are rejected as outliers) from 2009/11/17.465 to 2009/11/22.532. NOTE: The Virtual Impactors in 2018/11/22.954, 2027/11/23.215 and 2032/11/22.403 ... are rated as Torino Scale 1."
2009 WJ1JPL Sentry1522209111.2e-10-8.07-8.070JPL: "Analysis based on 37 observations spanning 5.9793 days (2009-Nov-17.10881 to 2009-Nov-23.08808)." Diameter approximately 0.210 km. from mean, weighted H=21.0.
NEODyS15222057-208031.22e-08-6.08-6.200NEODyS: "Based on 37 optical observations (of which 0 are rejected as outliers) from 2009/11/17.110 to 2009/11/23.089."

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 23 November '09

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

2359Noted that JPL Sentry has posted 2009 WR52 as an impact risk - see above
2309Noted that JPL Sentry has posted 2009 WQ52 as an impact risk - see above
2101Grabbed MPEC 2009-W83 - 2009 WQ52 - see above
Grabbed MPEC 2009-W84 - 2009 WR52 - see above
Grabbed MPEC 2009-W85 - 2009 WS52 - see above
2031Noted that JPL Sentry has posted 2009 WX51 as an impact risk - see above
Grabbed MPEC 2009-W82 - 2008 FT6 - see above
1915Grabbed MPEC 2009-W80 - 2009 WB52 - see above
Grabbed MPEC 2009-W81 - 2009 WD52 - see above
1839Grabbed MPEC 2009-W76 - 2009 WX51 - see above
Grabbed MPEC 2009-W77 - 2009 WY51 - see above
Grabbed MPEC 2009-W78 - 2009 WZ51 - see above
Grabbed MPEC 2009-W79 - 2009 WA52 - see above
1812Noted that JPL Sentry has updated its 2009 WM1 risk assessment - see above
1751Grabbed MPEC 2009-W75 - 2009 WV51 - see above
1522Noted that JPL Sentry has updated its 2009 WJ1 risk assessment - see above
Noted that NEODyS has updated its 2009 WJ1 risk assessment - see above
Noted that NEODyS has removed 2009 WK6 as an impact risk - see above
Noted that NEODyS has updated its 2009 WM1 risk assessment - see above
Noted that NEODyS has posted 2009 WQ25 as an impact risk - see above
Noted that JPL Sentry has updated its 2009 WW7 risk assessment - see above
Noted that NEODyS has updated its 2009 WW7 risk assessment - see above
Grabbed MPEC 2009-W73 - Daily Orbit Update - see above
Grabbed MPEC 2009-W74 - 2009 WC26 - see above
0523Noted that JPL Sentry has posted 2009 WQ25 as an impact risk - see above
Grabbed MPEC 2009-W67 - 2009 WR25 - see above
Grabbed MPEC 2009-W68 - 2009 WS25 - see above
Grabbed MPEC 2009-W69 - 2009 WT25 - see above
Grabbed MPEC 2009-W70 - 2009 WU25 - see above
Grabbed MPEC 2009-W71 - 2009 WV25 - see above
Grabbed MPEC 2009-W72 - 2009 WW25 - see above
0141Grabbed MPEC 2009-W65 - 2009 WP25 - see above
Grabbed MPEC 2009-W66 - 2009 WQ25 - see above
0037Grabbed MPEC 2009-W64 - 2009 WN25 - see above