Contents  on 30 October '08

Resources:

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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.

Radar Astrometry  on 30 October '08

Radar observation of one object

The JPL Solar System Dynamics Group Radar Astrometry database has added the following small-body radar observing work:


Data addition noted at 2118 UTC when the database was dated 30 Oct.

NEOCP Activity  on 30 October '08

The MPC's NEO Confirmation Page has 9 listings: 2 new, 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two new and seven updated listings. Of these, seven were "one nighters." The Tracking News counted a total of fifteen objects listed on the NEOCP at some point on this day.

New MPECs  on 30 October '08

Minor Planet Electronic Circulars

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


MPEC 2008-U101 - "23:56 UT" - 2008 UT95


MPEC 2008-U100 - "15:22 UT" - Observations of Comets


MPEC 2008-U99 - "15:09 UT" - Comet P/2008 U1 (McMillan)


MPEC 2008-U98 - "15:05 UT" - Comet P/2008 T4 (Hill)


MPEC 2008-U97 - "15:01 UT" - Comet C/2008 T2 (Cardinal)


MPEC 2008-U96 - "14:56 UT" - Comet C/2008 S3 (Boattini)


MPEC 2008-U95 - "13:22 UT" - 2008 UD95


MPEC 2008-U94 - "13:19 UT" - 2008 UC95


MPEC 2008-U93 - "13:16 UT" - 2008 UB95


<< DOU on 30 Oct. '08 >>  MPEC 2008-U92 - "06:14 UT" - Daily Orbit Update


MPEC 2008-U91 - "03:06 UT" - 2008 UZ94

Observers  on 30 October '08

A total of 71 observing facilities appeared in this day's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2008-U100 -- 6P
349Ageo Obs. in Japan, 9 in MPECs 2008-U99 & 2008-U100 -- P/2008 U1, P/2008 T5, P/2008 QP20, P/2008 L2, C/2006 OF2, 116P, 74P, 67P, 61P
J24Altamira Obs. in Spain, 11 in MPEC 2008-U100 -- P/2008 T3, P/2008 QP20, P/2008 Q2, C/2008 A1, C/2007 U1, 205P, 200P, 67P, 59P, 47P, 6P
B37Ametlla del Valles Obs. in Spain, 11 in MPECs 2008-U98, 2008-U99 & 2008-U100 -- P/2008 U1, P/2008 T4, C/2008 R3, P/2008 QP20, C/2008 Q1, C/2008 N1, C/2006 K1, 193P, 94P, 51P, 44P
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2008-U92 -- 2008 GV3
J20Aravaca Obs., 4 in MPECs 2008-U97 & 2008-U100 -- C/2008 T2, C/2006 W3, C/2006 OF2, 47P
H55Astronomical Research Obs. (ARO) in Illinois, 8 in MPEC 2008-U92 -- 2008 UZ91, 2008 UV91, 2008 TZ3, 2008 TX3, 2008 TT26, 2008 TC2, 2008 ST7, 2008 SH82
215Buchloe Obs. in Germany, 2 in MPEC 2008-U100 -- C/2007 U1, 16P
235CAST Obs. in Italy, 11 in MPEC 2008-U100 -- P/2008 Q2, C/2006 OF2, 205P, 200P, 67P, 61P, 59P, 51P, 47P, 44P, 29P
B20Carmelita Obs. in Spain, 5 in MPEC 2008-U100 -- C/2006 W3, C/2006 OF2, 205P, 51P, 29P
703Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2008-U92 & 2008-U100 -- 2008 TX3, C/2008 N1, P/2007 R1, 54071, 190491, 188P, 74P, 61P
A77Chante-Perdrix Obs. in France, 6 in MPEC 2008-U100 -- C/2008 Q1, C/2008 A1, C/2007 W1, C/2006 W3, C/2005 EL173, 29P
850Cordell-Lorenz Obs. in Tennessee, 7 in MPECs 2008-U91, 2008-U94, 2008-U99 & 2008-U100 -- 2008 UZ94, 2008 UC95, P/2008 U1, P/2008 T1, P/2007 R1, 205P, 51P
A30Crespadoro Obs. in Italy, 3 in MPEC 2008-U92 -- 39572, 16960, 137032
448Desert Moon Obs. in New Mexico, 4 in MPEC 2008-U92 -- 2008 SS251, 2007 MM13, 2005 UY5, 1997 US9
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2008-U100 -- 15P
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 2 in MPECs 2008-U93 & 2008-U95 -- 2008 UD95, 2008 UB95
372Geisei Obs. in Japan, 7 in MPECs 2008-U98, 2008-U99 & 2008-U100 -- P/2008 U1, P/2008 T4, P/2008 T3, P/2008 T1, C/2005 EL173, 193P, 6P
253Goldstone DSS-14 70m antenna in southern California, 1 in radar -- 2008 QS11
683Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2008-U92 -- 2008 SP7
J95Great Shefford Obs. in England, 2 in MPECs 2008-U92 & 2008-U101 -- 2008 UT95, 2008 UL90
458Guadarrama Obs. in Spain, 1 in MPEC 2008-U100 -- 29P
442Gualba Obs. in Spain, 1 in MPEC 2008-U100 -- 29P
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2008-U100 -- C/2006 W3
048Hradec Kralove Obs. in the Czech Republic, 5 in MPEC 2008-U100 -- P/2008 QP20, P/2008 Q2, C/2007 U1, C/2006 W3, 205P
715Jornada Obs. in New Mexico, 1 in MPEC 2008-U92 -- 2008 UA7
415Kambah Obs. in the Australian Capital Territory, 2 in MPEC 2008-U100 -- P/2008 Q2, 59P
585Kiev Comet Station in the Ukraine, 4 in MPEC 2008-U100 -- C/2007 W1, 44P, 29P, 19P
704LINEAR in New Mexico, 25 in MPECs 2008-U91, 2008-U92, 2008-U94, 2008-U98, 2008-U99 & 2008-U100 -- 2008 UZ94, 2008 UX, 2008 UC95, P/2008 U1, P/2008 T4, P/2008 T3, P/2008 T1, C/2008 R3, P/2008 Q2, C/2008 N1, 2008 MZ, P/2008 L2, 2008 JZ7, C/2007 U1, C/2006 K1, 2003 GW, 2002 SS41, 96744, 102873, 200P, 116P, 74P, 61P, 51P, 15P
J38La Vara Obs. in Spain, 15 in MPECs 2008-U97 & 2008-U100 -- C/2008 T2, C/2008 R3, P/2008 Q2, C/2008 Q1, C/2008 N1, P/2008 L2, C/2008 J1, C/2008 A1, C/2006 W3, C/2006 OF2, 205P, 61P, 47P, 44P, 19P
J55Los Altos de Arguineguin Obs. in the Canary Islands, 1 in MPEC 2008-U100 -- P/2008 Q2
844Los Molinos Obs. in Uruguay, 2 in MPEC 2008-U100 -- 51P, 6P
H01Magdalena Ridge Obs. (MRO) in New Mexico, 5 in MPECs 2008-U92, 2008-U93, 2008-U94, 2008-U95 & 2008-U101 -- 2008 UT95, 2008 UD95, 2008 UC95, 2008 UB95, 2008 UB7
232Masquefa Obs. in Spain, 9 in MPEC 2008-U100 -- P/2008 Q2, P/2008 L2, C/2007 U1, C/2006 W3, C/2006 OF2, 61P, 51P, 29P, 19P
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-U92 -- 2008 PF2
B73Mauren Valley Obs., 1 in MPEC 2008-U100 -- C/2008 Q1
J45Montana Cabreja Obs. in the Canary Islands, 1 in MPEC 2008-U100 -- 205P
213Montcabre Obs. in Spain, 12 in MPECs 2008-U96 & 2008-U100 -- P/2008 T3, P/2008 T1, C/2008 S3, P/2008 Q2, C/2008 A1, C/2006 OF2, 205P, 200P, 67P, 51P, 47P, 29P
945Monte Deva Obs. in Spain, 9 in MPECs 2008-U97 & 2008-U100 -- C/2008 T2, C/2008 J1, C/2006 W3, C/2006 OF2, 205P, 67P, 61P, 47P, 29P
900Moriyama Obs. in Japan, 1 in MPEC 2008-U100 -- C/2008 N1
G96Mt. Lemmon Survey (MLS) in Arizona, 16 in MPECs 2008-U92, 2008-U93, 2008-U95, 2008-U100 & 2008-U101 -- 2008 UT95, 2008 UL90, 2008 UD95, 2008 UB95, P/2008 T1, P/2008 Q2, 2008 PL3, C/2007 W1, P/2007 R1, 2006 SF6, 2006 OA5, 2002 DY3, 88188, 138847, 200P, 16P
J78Murcia Obs. in Spain, 2 in MPEC 2008-U100 -- C/2006 OF2, 205P
J47Nazaret Obs. in Spain, 9 in MPECs 2008-U96 & 2008-U100 -- P/2008 T3, C/2008 S3, P/2008 Q2, C/2007 U1, 200P, 67P, 61P, 59P, 47P
423North Ryde Obs. in New South Wales, 1 in MPEC 2008-U92 -- 3753
B49Paus Obs. in Spain, 2 in MPEC 2008-U100 -- P/2008 QP20, 61P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 20 in MPECs 2008-U92, 2008-U96, 2008-U97, 2008-U98 & 2008-U100 -- P/2008 T4, P/2008 T3, C/2008 T2, P/2008 T1, C/2008 S3, C/2008 R3, 2008 QT3, P/2008 QP20, P/2008 Q2, C/2008 N1, C/2007 U1, C/2006 W3, C/2006 OF2, 2005 TZ51, 1994 AW1, 205P, 200P, 61P, 59P, 51P
941Pla D'Arguines Obs. in Spain, 1 in MPEC 2008-U100 -- C/2006 K1
H06RAS Obs. Mayhill in New Mexico, 3 in MPEC 2008-U100 -- P/2008 T5, C/2006 OF2, 19P
H68Red Barn Obs. in Georgia, 1 in MPEC 2008-U96 -- C/2008 S3
473Remanzacco Obs. in Italy, 3 in MPECs 2008-U98, 2008-U99 & 2008-U100 -- P/2008 U1, P/2008 T4, C/2008 R3
939Rodeno Obs. in Spain, 7 in MPEC 2008-U100 -- P/2008 QP20, P/2008 Q2, P/2008 L2, C/2007 U1, C/2006 W3, C/2006 OF2, 205P
461SZTE Asteroid Program (SZTE) in Hungary, 3 in MPECs 2008-U94 & 2008-U100 -- 2008 UC95, C/2007 U1, C/2006 OF2
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2008-U91 & 2008-U94 -- 2008 UZ94, 2008 UC95
104San Marcello Pistoiese Obs. in Italy, 4 in MPECs 2008-U99 & 2008-U100 -- P/2008 U1, P/2008 QP20, P/2008 Q2, 61P
H36Sandlot Obs. in Kansas, 1 in MPEC 2008-U94 -- 2008 UC95
B70Sant Celoni Obs. in Spain, 3 in MPECs 2008-U97 & 2008-U100 -- C/2008 T2, 200P, 44P
B56Sant Pere Obs. in Spain, 1 in MPEC 2008-U100 -- C/2006 OF2
B74Santa Maria de Montmagastrell Obs. in Spain, 3 in MPEC 2008-U100 -- C/2008 R3, P/2008 L2, C/2006 W3
204Schiaparelli Obs. in Italy, 4 in MPECs 2008-U92 & 2008-U100 -- 2007 DM41, 2003 WX25, 1996 TE9, 188P
691Spacewatch 0.9m telescope in Arizona, 13 in MPECs 2008-U92 & 2008-U100 -- 2008 TT26, 2008 TD2, 2008 TA1, 2008 SW11, C/2006 K1, 2005 TR15, 2003 SG170, 2002 VY94, 2001 VG5, 2000 TV28, 159923, 6178, 94P
291Spacewatch 1.8m telescope in Arizona, 23 in MPECs 2008-U92, 2008-U93 & 2008-U95 -- 2008 UW5, 2008 UV91, 2008 UV5, 2008 US5, 2008 US2, 2008 UR2, 2008 UO90, 2008 UN3, 2008 UE7, 2008 UD95, 2008 UB95, 2008 TD27, 2008 TA1, 2008 SY150, 2008 SW11, 2008 QF, 2007 AE12, 2006 UC63, 2005 ND7, 2003 YR70, 2003 XB22, 2003 WQ7, 185851
629Szeged Obs. in Hungary, 8 in MPEC 2008-U100 -- P/2008 T3, P/2008 T1, P/2008 QP20, P/2008 Q2, C/2007 U1, C/2006 S3, C/2005 L3, 200P
673Table Mtn. Obs. in southern California, 8 in MPECs 2008-U96, 2008-U97, 2008-U98 & 2008-U100 -- P/2008 T4, C/2008 T2, P/2008 T1, C/2008 S3, C/2008 R3, P/2008 QP20, P/2008 Q2, C/2008 Q1
6735Jim Young via Table Mtn. Obs. in southern California, 4 in MPECs 2008-U91, 2008-U92, 2008-U93 & 2008-U94 -- 2008 UZ94, 2008 UT1, 2008 UC95, 2008 UB95
A98Taurus-1 Obs. in Belarus, 1 in MPEC 2008-U92 -- 162900
B26Terres Blanches Obs. in France, 2 in MPEC 2008-U100 -- C/2008 A1, 205P
H53Thompsonville Obs. in Illinois, 8 in MPEC 2008-U92 -- 2008 US4, 53319, 162900, 137032, 8567, 1865, 1627, 1620
H10Tzec Maun Obs. Mayhill in New Mexico, 6 in MPEC 2008-U100 -- P/2008 Q2, C/2006 W3, C/2006 OF2, 205P, 67P, 29P
0122Thierry Pauwels via Uccle Obs. in Belgium, 2 in MPEC 2008-U92 -- 2001 LM5, 185851
H47Vicksburg Obs. in Mississippi, 6 in MPEC 2008-U100 -- P/2008 Q2, C/2007 U1, 205P, 59P, 47P, 29P
B42Vitebsk Obs. in Belarus, 6 in MPEC 2008-U100 -- C/2008 R3, P/2008 Q2, C/2006 W3, 61P, 51P, 44P
C42Xingming Obs. in China, 1 in MPEC 2008-U100 -- C/2007 U1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 30 October '08

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.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
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
2008 UB95JPL Sentry15582024-2102156.0e-08-7.08-7.420JPL: "Analysis based on 31 observations spanning 1.0815 days (2008-Oct-29.2826 to 2008-Oct-30.364074)." Diameter approximately 0.042 km. from mean, weighted H=24.5.
2008 UZ94JPL Sentry04512037-210637.3e-09-3.96-4.140JPL: "Analysis based on 22 observations spanning 2.0414 days (2008-Oct-28.07343 to 2008-Oct-30.11484)." Diameter approximately 1.300 km. from mean, weighted H=17.0.
2008 UB92NEODyS13002023-207581.2e-09-8.52-8.910NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2008/10/29.355 to 2008/10/29.436."
2008 UA92NEODyS1300206313.3e-08-8.78-8.780NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2008/10/28.409 to 2008/10/29.469."
2008 UY91NEODyS13002014-207593.6e-09-7.29-7.360NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2008/10/28.222 to 2008/10/28.341."
2008 UV91JPL Sentry1259R E M O V E DJPL: Risk listing removed at 0929 UTC.
2008 UB7NEODyS14062044-2089494.37e-05-3.64-4.000NEODyS: "Based on 38 optical observations (of which 0 are rejected as outliers) from 2008/10/26.260 to 2008/10/29.245."
JPL Sentry12592044-2106424.7e-05-3.61-3.980JPL: "Analysis based on 38 observations spanning 2.9857 days (2008-Oct-26.25877 to 2008-Oct-29.24445)." Diameter approximately 0.059 km. from mean, weighted H=23.8.
2008 ST7NEODyS13002071-209074.12e-07-6.16-6.320NEODyS: "Based on 118 optical observations (of which 6 are rejected as outliers) from 2008/09/24.301 to 2008/10/29.154."
JPL Sentry12592074-2105193.4e-05-4.36-4.660JPL: "Analysis based on 112 observations spanning 34.853 days (2008-Sep-24.29993 to 2008-Oct-29.15302)." Diameter approximately 0.051 km. from mean, weighted H=24.1.

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 30 October '08

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

0030 10/31Grabbed MPEC 2008-U101 - 2008 UT95 - see above
2118Noted Radar Astrometry database addition - see above
1559Grabbed MPEC 2008-U99 - Comet P/2008 U1 (McMillan) - see above
Grabbed MPEC 2008-U100 - Observations of Comets - see above
1558Noted that JPL Sentry has posted 2008 UB95 as an impact risk - see above
Grabbed MPEC 2008-U97 - Comet C/2008 T2 (Cardinal) - see above
Grabbed MPEC 2008-U98 - Comet P/2008 T4 (Hill) - see above
1502Grabbed MPEC 2008-U96 - Comet C/2008 S3 (Boattini) - see above
1406Noted that NEODyS has updated its 2008 UB7 risk assessment - see above
Grabbed MPEC 2008-U93 - 2008 UB95 - see above
Grabbed MPEC 2008-U94 - 2008 UC95 - see above
Grabbed MPEC 2008-U95 - 2008 UD95 - see above
1300Noted that NEODyS has updated its 2008 ST7 risk assessment - see above
Grabbed MPEC 2008-U92 - Daily Orbit Update - see above
1259Noted that JPL Sentry has updated its 2008 ST7 risk assessment - see above
Noted that NEODyS has posted 2008 UA92 as an impact risk - see above
Noted that JPL Sentry has updated its 2008 UB7 risk assessment - see above
Noted that NEODyS has posted 2008 UB92 as an impact risk - see above
Noted that JPL Sentry has removed 2008 UV91 as an impact risk - see above
Noted that NEODyS has posted 2008 UY91 as an impact risk - see above
0451Noted that JPL Sentry has posted 2008 UZ94 as an impact risk - see above
0336Grabbed MPEC 2008-U91 - 2008 UZ94 - see above