2008-11-02 Tracking News

Contents on 2 November '08

IAU Minor Planet Center
- NEOCP Activity -- 21 listings: 5 new, 16 updated
- New MPECs -- two MPECs
Observers -- fourteen observing facilities
Impact Risk Monitoring -- three objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
Old & new CRT Archive
Old News Archive & Small Objects Archive

The latest A/CC news is available via framed access, 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 2 November '08

The MPC's NEO Confirmation Page has 21 listings: 5 new, 16 updated

When last checked at 2359 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had five new and sixteen updated listings. Of these, ten were "one nighters." So far The Tracking News has counted a total of 22 objects listed on the NEOCP at some point today.

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 2 November '08

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-V02 time-stamped "06:14 UT" - Daily Orbit Update - see below
MPEC 2008-V03 time-stamped "16:19 UT" - 2007 LD

MPEC 2008-V03 - "16:19 UT" - 2007 LD

K07L00D 2007 LD (H=19.1 ~513m) from David Tholen's team on Mauna Kea (Sept. 16.46-48p9 at R=23.0, Oct. 21.44p2 at R=22.0 & 22.51-52p3 at R=21.6-22.2)

<< DOU on 2 Nov. '08 >> MPEC 2008-V02 - "06:14 UT" - Daily Orbit Update

Observations of risk-listed objects
K08U95U 2008 UU95 (small asteroid, Q=4.203 AU, arc=2 days, H=23.4 ~71m) from the Spacewatch 1.8m telescope (Nov. 1.20-21p3)
K08S07T 2008 ST7 (small asteroid, arc=38 days, H=24.1 ~51m) from Astronomical Research Obs. (ARO) (Nov. 1.14p1 at V=23.4)
Observations of recently (no longer) risk-listed objects
K08T27D 2008 TD27 (arc=23 days, H=20.0 ~339m) from Spacewatch 1.8m (Nov. 2.15-16p3)
K08T03Z 2008 TZ3 (arc=26 days, H=20.3 ~295m) from ARO (Nov. 1.07-10p3 at V=22.0-22.4)
K08T02D 2008 TD2 (arc=28 days, H=21.6 ~162m) from the Spacewatch 0.9m telescope (Oct. 31.35-38p3)
Observations of small asteroids (H>22.0)
K08UA0P 2008 UP100 (arc=1 day, H=23.8 ~59m) from Magdalena Ridge Obs. (MRO) (Oct. 31.25p4 & Nov. 1.23-24p5)
K08U99U 2008 UU99 (arc=2 days, H=25.1 ~32m) from Spacewatch 1.8m (Nov. 1.44-45p3)
K08U01T 2008 UT1 (i=43.1°, arc=8 days, H=22.3 ~117m) from Schiaparelli Obs. (Oct. 25.00p3)
K08U00V 2008 UV (arc=11 days, H=24.8 ~37m) from Spacewatch 1.8m (Nov. 1.35-36p3)
K08S08F 2008 SF8 (Q=4.451 AU, arc=37 days, H=23.7 ~62m) from Spacewatch 1.8m (Nov. 1.40-41p3)
Observations of other objects
K08U91W 2008 UW91 (arc=5 days, H=21.6 ~162m) from Spacewatch 1.8m (Nov. 2.13-14p3)
K08U90O 2008 UO90 (arc=5 days, H=20.5 ~269m) from Spacewatch 0.9m (Oct. 31.18-21p3) and Spacewatch 1.8m (Nov. 1.43p3)
K08U04S 2008 US4 (arc=27 days, H=20.7 ~245m) from the Mt. Lemmon Survey (MLS) (Nov. 1.25-28p4) and Thompsonville Obs. (Nov. 2.09-10p6)
K08TF7K 2008 TK157 (arc=39 days, H=20.6 ~257m) from the Catalina Sky Survey (CSS) (Oct. 30.24-26p4), LINEAR (Nov. 1.20-25p5), and Desert Moon Obs. (Nov. 1.30-32p3)
K08TF7J 2008 TJ157 (Q=4.277 AU, arc=26 days, H=21.0 ~214m) from Spacewatch 1.8m (Nov. 1.37-38p3)
K08T10Q 2008 TQ10 (arc=24 days, H=20.5 ~269m) from Spacewatch 1.8m (Nov. 1.38-39p3)
K08T04F 2008 TF4 (arc=26 days, H=19.3 ~467m) from LINEAR (Nov. 1.20-24p4)
K08T04D 2008 TD4 (arc=23 days, H=19.7 ~389m) from MLS (Oct. 30.30-32p4)
K08S07X 2008 SX7 (arc=41 days, H=18.4 ~708m) from Desert Moon Obs. (Nov. 1.08-10p3)
K08S07P 2008 SP7 (Q=4.199 AU, arc=39 days, H=19.0 ~537m) from Los Molinos Obs. (Nov. 1.24-25p5) and CSS (Nov. 1.27-29p3)
K08S01Q 2008 SQ1 (Q=4.682 AU, arc=2 opp, H=18.4 ~708m) from Thompsonville Obs. (Nov. 2.11-12p6)
K08S00O 2008 SO (arc=40 days, H=20.9 ~224m) from Spacewatch 1.8m (Oct. 30.16-17p3)
K08S00E 2008 SE (arc=42 days, H=19.4 ~446m) from Spacewatch 0.9m (Nov. 1.16-19p3)
K08R98M 2008 RM98 (Q=4.198 AU, arc=56 days, H=20.2 ~309m) from Spacewatch 1.8m (Nov. 2.11-12p3)
K08R24X 2008 RX24 (arc=53 days, H=21.4 ~178m) from Spacewatch 0.9m (Oct. 29.08-12p3)
K08Q00C 2008 QC (arc=71 days, H=20.7 ~245m) from MLS (Oct. 29.31-33p3)
K08N00U 2008 NU (Q=4.202 AU, arc=122 days, H=17.5 ~1.07 km) from CSS (Oct. 31.26-28p4)
K08M01R 2008 MR1 (arc=3 opp, H=18.4 ~708m) from CSS (Oct. 31.39-41p4)
K08M01H 2008 MH1 (Q=4.263 AU, arc=122 days, H=18.4 ~708m) from Schiaparelli Obs. (Oct. 25.87-89p3)
K07G03S 2007 GS3 (arc=2 opp, H=19.4 ~446m) from MLS (Nov. 1.08-10p4)
K06SL7Z 2006 SZ217 (arc=3 opp, H=17.3 ~1.17 km) from Taurus-1 Obs. (Oct. 31.94-96p7)
K06G00Z 2006 GZ (arc=2 opp, H=19.4 ~446m) from CSS (Nov. 1.40-42p4)
K05YG5S 2005 YS165 (arc=2 opp, H=17.4 ~1.12 km) from CSS (Nov. 1.47-49p4)
K05VB8P 2005 VP118 (arc=3 opp, H=18.8 ~589m) from Tholen et al. (Oct. 21.62p3 & 22.62p2)
K05T51Z 2005 TZ51 (arc=3 opp, H=17.9 ~891m) from CSS (Oct. 31.12-14p3)
K05E60A 2005 EA60 (arc=4 opp, H=19.4 ~446m) from MLS (Nov. 1.37-40p3)
K05A42T 2005 AT42 (Q=4.605 AU, arc=3 opp, H=16.5 ~1.70 km) from Spacewatch 1.8m (Nov. 1.33-35p3)
K02V94Y 2002 VY94 (Q=5.375 AU, arc=2 opp, H=16.8 ~1.48 km) from CSS (Nov. 1.35-37p4)
K01V05G 2001 VG5 (arc=6 opp, H=16.7 ~1.55 km) from CSS (Nov. 1.41-43p3)
K01T01W 2001 TW1 (arc=5 opp, H=19.1 ~513m) from CSS (Oct. 31.29-30p4)
K00F01L 2000 FL1 (i=43.6°, Q=4.178 AU, arc=2 opp, H=15.4 ~2.82 km, q=1.291 AU) from Desert Moon Obs. (Nov. 1.50p3)
J96T09E 1996 TE9 (arc=3 opp, H=18.8 ~589m) from CSS (Nov. 1.13-14p4)
J0166 190166 2005 UP156 from Spacewatch 0.9m (Nov. 1.21-25p3)
J0119 190119 2004 VA64 from CSS (Oct. 31.43-44p4)
I5851 185851 2000 DP107 from Timberlake Obs. (Nov. 1.07-10p3)
G3000 163000 2001 SW169 from LINEAR (Nov. 1.14-17p4)
G2900 162900 2001 HG31 from Taurus-1 Obs. (Oct. 31.88-90p5) and LINEAR (Nov. 1.26-31p5)
G2679 162679 2000 TK1 from CSS (Oct. 31.21-24p4)
G2004 162004 1991 VE from LINEAR (Nov. 1.38-41p3)
F5110 155110 2005 TB from LINEAR (Nov. 1.31-36p5)
E2348 142348 2002 RX211 from Schiaparelli Obs. (Oct. 26.09p1 & 26.13-18p3)
D7799 137799 1999 YB from LINEAR (Nov. 1.26-30p5)
D6923 136923 1998 JH2 from LINEAR (Nov. 1.37-41p4)
90075 90075 2002 VU94 from LINEAR (Nov. 1.26-30p9)
07358 7358 Oze (1995 YA3) from LINEAR (Nov. 1.43-47p5)
02368 2368 Beltrovata (1977 RA) from LINEAR (Nov. 1.43-48p5)
02201 2201 Oljato (1947 XC) from LINEAR (Nov. 1.44-49p4)
01865 1865 Cerberus (1971 UA) from CSS (Nov. 1.18-19p4) and LINEAR (Nov. 1.19-24p5)
01620 1620 Geographos (1951 RA) from CSS (Oct. 31.21-23p4)

Observers on 2 November '08

Fourteen observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 2 in MPEC 2008-V02 -- 2008 TZ3, 2008 ST7
`703`	Catalina Sky Survey (CSS) in Arizona, 15 in MPEC 2008-V02 -- 2008 TK157, 2008 SP7, 2008 NU, 2008 MR1, 2006 GZ, 2005 YS165, 2005 TZ51, 2002 VY94, 2001 VG5, 2001 TW1, 1996 TE9, 190119, 162679, 1865, 1620
`448`	Desert Moon Obs. in New Mexico, 3 in MPEC 2008-V02 -- 2008 TK157, 2008 SX7, 2000 FL1
`704`	LINEAR in New Mexico, 13 in MPEC 2008-V02 -- 2008 TK157, 2008 TF4, 90075, 163000, 162900, 162004, 155110, 137799, 136923, 7358, 2368, 2201, 1865
`844`	Los Molinos Obs. in Uruguay, 1 in MPEC 2008-V02 -- 2008 SP7
`H01`	Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2008-V02 -- 2008 UP100
`5682`	David Tholen's team on Mauna Kea in Hawaii, 2 in MPECs 2008-V02 & 2008-V03 -- 2007 LD, 2005 VP118
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 5 in MPEC 2008-V02 -- 2008 US4, 2008 TD4, 2008 QC, 2007 GS3, 2005 EA60
`204`	Schiaparelli Obs. in Italy, 3 in MPEC 2008-V02 -- 2008 UT1, 2008 MH1, 142348
`691`	Spacewatch 0.9m telescope in Arizona, 5 in MPEC 2008-V02 -- 2008 UO90, 2008 TD2, 2008 SE, 2008 RX24, 190166
`291`	Spacewatch 1.8m telescope in Arizona, 12 in MPEC 2008-V02 -- 2008 UW91, 2008 UV, 2008 UU99, 2008 UU95, 2008 UO90, 2008 TQ10, 2008 TJ157, 2008 TD27, 2008 SO, 2008 SF8, 2008 RM98, 2005 AT42
`A98`	Taurus-1 Obs. in Belarus, 2 in MPEC 2008-V02 -- 2006 SZ217, 162900
`H53`	Thompsonville Obs. in Illinois, 2 in MPEC 2008-V02 -- 2008 US4, 2008 SQ1
`H83`	Timberlake Obs. in Virginia, 1 in MPEC 2008-V02 -- 185851

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 2 November '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2359 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 UU95	NEODyS	1451	2046-2090	26	1.05e-07	-6.16	-6.62	0	NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2008/10/30.380 to 2008/11/01.206."
2008 UU95	JPL Sentry	1450	2046-2107	26	1.9e-07	-5.99	-6.74	0	JPL: "Analysis based on 21 observations spanning 1.8265 days (2008-Oct-30.37925 to 2008-Nov-01.20573)." Diameter approximately 0.072 km. from mean, weighted H=23.4.

2008 ST7	NEODyS	1451	2062-2089	5	4.41e-07	-6.11	-6.29	0	NEODyS: "Based on 121 optical observations (of which 6 are rejected as outliers) from 2008/09/24.301 to 2008/11/01.145."
2008 ST7	JPL Sentry	1450	2074-2105	18	3.3e-05	-4.36	-4.67	0	JPL: "Analysis based on 115 observations spanning 37.845 days (2008-Sep-24.29993 to 2008-Nov-01.14445)." Diameter approximately 0.052 km. from mean, weighted H=24.1.

2004 XY130	NEODyS	1450	R 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 2 November '08

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

1621	Grabbed MPEC 2008-V03 - 2007 LD - see above
1451	Noted that NEODyS has updated its 2008 ST7 risk assessment - see above Noted that NEODyS has updated its 2008 UU95 risk assessment - see above Grabbed MPEC 2008-V02 - Daily Orbit Update - see above
1450	Noted that NEODyS has removed 2004 XY130 as an impact risk - see above Noted that JPL Sentry has updated its 2008 ST7 risk assessment - see above Noted that JPL Sentry has updated its 2008 UU95 risk assessment - see above

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