Contents  on 16 October '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 16 October '09

The MPC's NEO Confirmation Page has 11 listings: 3 new, 8 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and eight updated listings. Of these, ten were "one nighters." So far The Tracking News has counted a total of 23 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 16 October '09

Minor Planet Electronic Circulars

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


MPEC 2009-U13 - "21:08 UT" - 2009 UG


MPEC 2009-U12 - "20:41 UT" - 2009 UF


MPEC 2009-U11 - "18:32 UT" - 2009 UE


MPEC 2009-U10 - "18:26 UT" - 2009 UD


MPEC 2009-U09 - "18:19 UT" - 2009 UC


MPEC 2009-U08 - "18:15 UT" - 2009 UB


MPEC 2009-U07 - "18:12 UT" - 2009 UA


MPEC 2009-U06 - "16:34 UT" - 2009 TG10


MPEC 2009-U05 - "16:27 UT" - 2009 TF10


MPEC 2009-U04 - "16:20 UT" - 2009 TE10


MPEC 2009-U03 - "16:12 UT" - 2009 TD10


MPEC 2009-U02 - "14:44 UT" - Comet P/2009 SK280 (Spacewatch-Hill)


<< DOU on 16 Oct. '09 >>  MPEC 2009-U01 - "06:13 UT" - Daily Orbit Update

Observers  on 16 October '09

A total of 31 observing facilities appear in today's MPECs.

CodeObserver / observatory
J51Atlante Obs. in the Canary Islands, 2 in MPEC 2009-U01 -- 2009 ST19, 159402
G55Bakersfield Obs., 1 in MPEC 2009-U01 -- 159402
160Castelmartini Obs. in Italy, 18 in MPEC 2009-U01 -- 2009 ML1, 2009 KC3, 1999 HY1, 85770, 55408, 38091, 30825, 22771, 218017, 217683, 20790, 185716, 17511, 17274, 162998, 154244, 143678, 136617
703Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2009-U01, 2009-U07, 2009-U10 & 2009-U13 -- 2009 UG, 2009 UD, 2009 UA, 2009 TT, 55408
448Desert Moon Obs. in New Mexico, 4 in MPEC 2009-U01 -- 2009 SW, 2009 SP, 2009 SC229, 2009 RH2
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-U01 -- 2009 TB8
A27Eridanus Obs. in Germany, 1 in MPEC 2009-U01 -- 159402
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 2 in MPECs 2009-U06 & 2009-U10 -- 2009 UD, 2009 TG10
E10Faulkes Telescope South in New South Wales, 2 in MPECs 2009-U05 & 2009-U11 -- 2009 UE, 2009 TF10
J95Great Shefford Obs. in England, 2 in MPECs 2009-U12 & 2009-U13 -- 2009 UG, 2009 UF
B86Hagen Obs. in Germany, 1 in MPEC 2009-U02 -- P/2009 SK280
379Hamamatsu-Yuto Obs. in Japan, 8 in MPEC 2009-U01 -- 2009 ST19, 2009 SM103, 2009 RN, 2009 NA, 2009 KC3, 2005 RQ6, 2000 CO101, 3200
G92Jarnac Obs. in Arizona, 1 in MPEC 2009-U01 -- 2009 SW
704LINEAR in New Mexico, 11 in MPECs 2009-U01, 2009-U05 & 2009-U13 -- 2009 UG, 2009 TF10, 2009 SO103, 2009 RD1, 2005 TE15, 1998 SV4, 218017, 17511, 162998, 143678, 5646
J75La Sagra Obs. in Spain, 2 in MPEC 2009-U01 -- 38091, 16816
B33Libbiano Obs. in Italy, 2 in MPECs 2009-U05 & 2009-U13 -- 2009 UG, 2009 TF10
H01Magdalena Ridge Obs. (MRO) in New Mexico, 9 in MPECs 2009-U02, 2009-U03, 2009-U04, 2009-U05, 2009-U06, 2009-U07, 2009-U08, 2009-U09 & 2009-U10 -- 2009 UD, 2009 UC, 2009 UB, 2009 UA, 2009 TG10, 2009 TF10, 2009 TE10, 2009 TD10, P/2009 SK280
G96Mt. Lemmon Survey (MLS) in Arizona, 8 in MPECs 2009-U01, 2009-U02, 2009-U04, 2009-U06, 2009-U08, 2009-U09 & 2009-U12 -- 2009 UF, 2009 UC, 2009 UB, 2009 TG10, 2009 TE10, P/2009 SK280, 2002 RB126, 162998
J53Posadas Obs. in Spain, 1 in MPEC 2009-U01 -- 159402
854Sabino Canyon Obs. in Arizona, 3 in MPECs 2009-U03, 2009-U05 & 2009-U07 -- 2009 UA, 2009 TF10, 2009 TD10
H36Sandlot Obs. in Kansas, 2 in MPECs 2009-U05 & 2009-U06 -- 2009 TG10, 2009 TF10
204Schiaparelli Obs. in Italy, 1 in MPEC 2009-U13 -- 2009 UG
D21Shenton Park Obs. in Western Australia, 4 in MPEC 2009-U01 -- 2009 TT, 2009 TK8, 2009 KL2, 3552
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2009-U03 & 2009-U11 -- 2009 UE, 2009 TD10
587Sormano Obs. in Italy, 1 in MPEC 2009-U01 -- 2009 TM8
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-U02 -- P/2009 SK280
291Spacewatch 1.8m telescope in Arizona, 11 in MPECs 2009-U01 & 2009-U02 -- 2009 TB3, 2009 SW19, 2009 SU19, 2009 SU, 2009 SP171, 2009 SL2, P/2009 SK280, 2009 SB15, 2009 QL2, 2006 YT13, 2006 WR1
6735Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2009-U05, 2009-U06 & 2009-U07 -- 2009 UA, 2009 TG10, 2009 TF10
I19Tanti Obs. in Argentina, 1 in MPEC 2009-U05 -- 2009 TF10
926Tenagra II Obs. in Arizona, 4 in MPECs 2009-U01, 2009-U02, 2009-U05 & 2009-U06 -- 2009 TV4, 2009 TG10, 2009 TF10, P/2009 SK280
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2009-U02 -- P/2009 SK280
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 16 October '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 UEJPL Sentry20312011-21081368.0e-07-6.41-7.630JPL: "Analysis based on 13 observations spanning .15419 days (2009-Oct-16.41137 to 2009-Oct-16.56556)." Diameter approximately 0.028 km. from mean, weighted H=25.4.
2009 UDJPL Sentry2031209712.7e-10-11.07-11.10JPL: "Analysis based on 19 observations spanning .25205 days (2009-Oct-16.33792 to 2009-Oct-16.58997)." Diameter approximately 0.013 km. from mean, weighted H=27.2.
2009 UBJPL Sentry21202011-21091791.4e-07-6.46-7.010JPL: "Analysis based on 12 observations spanning .06852 days (2009-Oct-16.17815 to 2009-Oct-16.24667)." Diameter approximately 0.027 km. from mean, weighted H=25.5.
2009 TE10JPL Sentry19122016-2094202.0e-08-3.79-4.100JPL: "Analysis based on 16 observations spanning 1.0507 days (2009-Oct-15.08827 to 2009-Oct-16.13898)." Diameter approximately 0.600 km. from mean, weighted H=18.8.
2009 TQ8NEODyS14012015-20901992.48e-06-4.88-5.330NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2009/10/15.361 to 2009/10/15.489."
2009 TM8NEODyS14012081-208781.14e-06-7.85-8.400NEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2009/10/15.212 to 2009/10/15.872."
2009 TH8NEODyS1401206812.33e-07-6.57-6.570NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2009/10/14.545 to 2009/10/15.588."
2009 TG8NEODyS1401202779.35e-10-5.43-6.100NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2009/10/14.452 to 2009/10/15.520."
2009 TC8NEODyS14012014-2088549.32e-08-3.75-4.120NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2009/10/14.166 to 2009/10/15.187."
2009 TB3NEODyS1401R E M O V E D-

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 16 October '09

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

2130Grabbed MPEC 2009-U13 - 2009 UG - see above
2120Noted that JPL Sentry has posted 2009 UB as an impact risk - see above
2101Grabbed MPEC 2009-U12 - 2009 UF - see above
2031Noted that JPL Sentry has posted 2009 UD as an impact risk - see above
Noted that JPL Sentry has posted 2009 UE as an impact risk - see above
1912Noted that JPL Sentry has posted 2009 TE10 as an impact risk - see above
Grabbed MPEC 2009-U07 - 2009 UA - see above
Grabbed MPEC 2009-U08 - 2009 UB - see above
Grabbed MPEC 2009-U09 - 2009 UC - see above
Grabbed MPEC 2009-U10 - 2009 UD - see above
Grabbed MPEC 2009-U11 - 2009 UE - see above
1707Grabbed MPEC 2009-U05 - 2009 TF10 - see above
Grabbed MPEC 2009-U06 - 2009 TG10 - see above
1622Grabbed MPEC 2009-U03 - 2009 TD10 - see above
Grabbed MPEC 2009-U04 - 2009 TE10 - see above
1506Grabbed MPEC 2009-U02 - Comet P/2009 SK280 (Spacewatch-Hill) - see above
1401Noted that NEODyS has removed 2009 TB3 as an impact risk - see above
Noted that NEODyS has posted 2009 TC8 as an impact risk - see above
Noted that NEODyS has posted 2009 TG8 as an impact risk - see above
Noted that NEODyS has posted 2009 TH8 as an impact risk - see above
Noted that NEODyS has posted 2009 TM8 as an impact risk - see above
Noted that NEODyS has posted 2009 TQ8 as an impact risk - see above
Grabbed MPEC 2009-U01 - Daily Orbit Update - see above