2008-11-18 Tracking News

Contents on 18 November '08

IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- seven MPECs
Observers -- 27 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 18 November '08

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty. There were eight listings noted earlier today.

New MPECs on 18 November '08

Minor Planet Electronic Circulars

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

MPEC 2008-W06 time-stamped "00:02 UT" - 2005 VA123, 2007 TG422, 2007 XV50, 2008 CS190, 2008 CT190 - see below
MPEC 2008-W07 time-stamped "00:29 UT" - 2008 UD253 = 1998 XL27 - see below
MPEC 2008-W08 time-stamped "07:06 UT" - Daily Orbit Update - see below
MPEC 2008-W09 time-stamped "16:18 UT" - 2008 WB - see below
MPEC 2008-W10 time-stamped "16:24 UT" - 2008 WC - see below
MPEC 2008-W11 time-stamped "16:27 UT" - 2008 WD - see below
MPEC 2008-W12 time-stamped "16:30 UT" - 2008 WE

MPEC 2008-W12 - "16:30 UT" - 2008 WE

K08W00E 2008 WE (small asteroid, Earth MOID=8.5 LD, H=26.0 ~21m) was discovered at 0549 UT on 18 Nov. by the Catalina Sky Survey (CSS), which observed it at Nov. 18.24-26p4, 18.32p4, and 18.43-44p4. The discovery was confirmed by Sabino Canyon Obs. (Nov. 18.30-31p3).

MPEC 2008-W11 - "16:27 UT" - 2008 WD

K08W00D 2008 WD (small asteroid, Q=4.706 AU, Earth MOID=8.7 LD, H=24.7 ~39m) was discovered at 0545 UT on 18 Nov. by CSS, which observed it at Nov. 18.24-26p4 and 18.35p4. The discovery was confirmed by Sabino Canyon Obs. (Nov. 18.28-29p2).

MPEC 2008-W10 - "16:24 UT" - 2008 WC

K08W00C 2008 WC (risk-listed, Earth MOID=2.0 LD, H=26.3 ~19m) was discovered at 0420 UT on 18 Nov. by CSS, which observed it at Nov. 18.18-23p7 and 18.35-36p2. The discovery was confirmed by Sabino Canyon Obs. (Nov. 18.26-27p2). This object will be coming within ten lunar distances (LD) of Earth, reaching 4.7 LD on 26 Nov.

MPEC 2008-W09 - "16:18 UT" - 2008 WB

K08W00B 2008 WB (i=44.4°, H=20.8 ~234m) was discovered at 0846 UT on 17 Nov. by CSS, which observed it at Nov. 17.37-42p8 and 18.15-17p4. The discovery was confirmed by Schiaparelli Obs. (Nov. 17.78-79p2), Remanzacco Obs. (Nov. 17.84p2), Jim Young via Table Mtn. Obs. (Nov. 18.15-17p4), Sandlot Obs. (Nov. 18.20-21p3), and Sabino Canyon Obs. (Nov. 18.21-22p3).

<< DOU on 18 Nov. '08 >> MPEC 2008-W08 - "07:06 UT" - Daily Orbit Update

Observations of risk-listed objects
K08V14L 2008 VL14 (arc=9 days, H=21.1 ~204m) from the Spacewatch 1.8m telescope (Nov. 18.12-13p3)
K08V04R 2008 VR4 (small asteroid, arc=11 days, H=23.0 ~85m) from Spacewatch 1.8m (Nov. 17.19-21p2 & 18.19-20p3)
Observations of recently (no longer) risk-listed objects
K08V01B 2008 VB1 (arc=14 days, H=20.6 ~257m) from Spacewatch 1.8m (Nov. 17.39-40p3)
K08V00E 2008 VE (small asteroid, Q=4.413 AU, arc=16 days, H=22.1 ~129m) from Desert Moon Obs. (Nov. 17.43-48p3)
K08U07E 2008 UE7 (arc=22 days, H=20.5 ~269m) from Desert Moon Obs. (Nov. 17.52p3)
Observations of small asteroids (H>22.0)
K08UA0P 2008 UP100 (arc=17 days, H=23.9 ~56m) from the Spacewatch 0.9m telescope (Nov. 17.08-13p3) and Spacewatch 1.8m (Nov. 17.34-35p3)
K08U99T 2008 UT99 (arc=18 days, H=24.4 ~45m) from Spacewatch 1.8m (Nov. 17.43-44p3)
K08U91Z 2008 UZ91 (arc=20 days, H=22.4 ~112m) from Spacewatch 1.8m (Nov. 17.32p3)
Observations of other objects
K08V14G 2008 VG14 (Q=4.466 AU, arc=10 days, H=20.3 ~295m) from CSS (Nov. 17.16-21p8) and Desert Moon Obs. (Nov. 17.36-40p3)
K08V04Q 2008 VQ4 (arc=13 days, H=19.2 ~490m) from Spacewatch 1.8m (Nov. 17.28p3)
K08U07F 2008 UF7 (arc=22 days, H=19.1 ~513m) from Spacewatch 1.8m (Nov. 17.33-34p3)
K08U05S 2008 US5 (arc=24 days, H=21.3 ~186m) from Spacewatch 1.8m (Nov. 18.24-25p3)
K08TF7K 2008 TK157 (arc=55 days, H=20.6 ~257m) from Desert Moon Obs. (Nov. 17.19-20p3)
K08T27D 2008 TD27 (arc=39 days, H=20.0 ~339m) from Spacewatch 1.8m (Nov. 18.21-22p3)
K08T02D 2008 TD2 (arc=45 days, H=21.7 ~155m) from Spacewatch 1.8m (Nov. 17.36-37p3)
K08T01A 2008 TA1 (arc=47 days, H=18.6 ~645m) from Spacewatch 1.8m (Nov. 18.26-27p3)
K08SO5X 2008 SX245 (arc=49 days, H=17.8 ~933m) from Chante-Perdrix Obs. (Nov. 16.87-91p3)
K08S82H 2008 SH82 (arc=52 days, H=21.0 ~214m) from Petit Jean Mtn. South Obs. (PJMSO) (Nov. 17.06-07p6)
K08S11V 2008 SV11 (Q=4.503 AU, arc=54 days, H=18.2 ~776m) from Spacewatch 1.8m (Nov. 18.10-12p3)
K08S07X 2008 SX7 (arc=57 days, H=18.5 ~676m) from Desert Moon Obs. (Nov. 17.12-16p3)
K08S07R 2008 SR7 (arc=55 days, H=19.9 ~355m) from Spacewatch 1.8m (Nov. 18.22-23p3)
K08S07P 2008 SP7 (Q=4.200 AU, arc=54 days, H=19.0 ~537m) from Ametlla del Valles Obs. (Nov. 16.13p2 & 16.18p1)
K08S01R 2008 SR1 (arc=56 days, H=20.3 ~295m) from Spacewatch 1.8m (Nov. 18.16-17p3 at V=22.4-7)
K08S01Q 2008 SQ1 (Q=4.682 AU, arc=2 opp, H=18.4 ~708m) from Ametlla del Valles Obs. (Nov. 16.01-05p6), CSS (Nov. 17.31-33p4), and Posadas Obs. (Nov. 17.94p3)
K08R98M 2008 RM98 (Q=4.198 AU, arc=71 days, H=20.2 ~309m) from Spacewatch 1.8m (Nov. 17.13-15p3)
K08Q03T 2008 QT3 (arc=84 days, H=18.6 ~645m) from PJMSO (Nov. 17.04p6)
K08Q00Y 2008 QY (arc=2 opp, H=18.5 ~676m) from CSS (Nov. 17.15-21p8)
K08M01R 2008 MR1 (arc=3 opp, H=18.4 ~708m) from CSS (Nov. 17.37-39p4)
K06SL7Z 2006 SZ217 (arc=3 opp, H=17.3 ~1.17 km) from Iluro Obs. (Nov. 16.15p3)
K06G02Q 2006 GQ2 (arc=2 opp, H=18.0 ~851m) from Desert Moon Obs. (Nov. 17.06-09p3)
K05W55S 2005 WS55 (arc=4 opp, H=16.1 ~2.04 km, q=1.108 AU) from Ametlla del Valles Obs. (Nov. 15.96-99p5)
K05T51Z 2005 TZ51 (arc=3 opp, H=17.9 ~891m) from Ametlla del Valles Obs. (Nov. 14.91-99p7 & 15.00p3), PJMSO (Nov. 17.12-13p5), and Posadas Obs. (Nov. 17.89-90p4)
K04T13Q 2004 TQ13 (Q=4.058 AU, arc=2 opp, H=18.3 ~741m) from Spacewatch 1.8m (Nov. 18.07p2)
K04S20B 2004 SB20 (arc=3 opp, H=18.5 ~676m) from CSS (Nov. 17.13-17p6)
K02O04M 2002 OM4 (i=55.3°, arc=4 opp, H=16.9 ~1.41 km) from Lawrence H. Wasserman via Cerro Tololo Inter-American Obs. (CTIO) (Sept. 28.06p1 & 28.18p1)
J96T09E 1996 TE9 (arc=3 opp, H=18.8 ~589m) from PJMSO (Nov. 17.11-12p6)
J94A01W 1994 AW1 (arc=3 opp, H=17.6 ~1.02 km) from Ametlla del Valles Obs. (Nov. 14.85-87p5)
J8856 198856 2005 LR3 from Ametlla del Valles Obs. (Nov. 16.20p3)
J4268 194268 2001 UY4 from CSS (Nov. 17.25-27p4)
J4126 194126 2001 SG276 from CSS (Nov. 17.28-30p4)
I8452 188452 2004 HE62 from Ametlla del Valles Obs. (Nov. 15.93-95p2 & 15.99p1)
G3000 163000 2001 SW169 from Chante-Perdrix Obs. (Nov. 16.78-83p3)
G2900 162900 2001 HG31 from Iluro Obs. (Nov. 16.97p3), Betelgeuse Station (Nov. 17.88-92p30), and Atlante Obs. (Nov. 18.03-04p3)
G2679 162679 2000 TK1 from Ametlla del Valles Obs. (Nov. 14.94-98p5 & 16.00-04p5)
F5110 155110 2005 TB from CSS (Nov. 17.39-41p4)
E2348 142348 2002 RX211 from Iluro Obs. (Nov. 16.17p2)
E1079 141079 2001 XS30 from CSS (Nov. 17.13-17p7)
D7799 137799 1999 YB from CSS (Nov. 17.28-30p4)
D6923 136923 1998 JH2 from Andrushivka Obs. (Nov. 1.03p1)
90075 90075 2002 VU94 from Spacewatch 0.9m (Nov. 17.16-22p3)
85774 85774 1998 UT18 from Ametlla del Valles Obs. (Nov. 15.12-13p4) and Iluro Obs. (Nov. 16.19-20p3)
65996 65996 1998 MX5 from Ametlla del Valles Obs. (Nov. 16.09-10p2) and CSS (Nov. 17.28-30p4)
36236 36236 1999 VV from Ametlla del Valles Obs. (Nov. 14.87-89p4 & 15.92-93p4)
16834 16834 1997 WU22 from Ametlla del Valles Obs. (Nov. 16.15-19p4)
03360 3360 Syrinx (1981 VA) from Posadas Obs. (Nov. 17.87-88p4)
03200 3200 Phaethon (1983 TB) from CSS (Nov. 17.16-17p4)
01865 1865 Cerberus (1971 UA) from Posadas Obs. (Nov. 17.90-91p4)

MPEC 2008-W07 - "00:29 UT" - 2008 UD253 = 1998 XL27

K08UP3D 2008 UD253 (q=2.438 AU, Q=7.027 AU, H=14.3 ~4.67 km) from the Siding Spring Survey (SSS) (Aug. 6.74-77p4), CSS (Oct. 1.30-32p4, 8.32-34p4 & Nov. 6.17-18p3), La Sagra Obs. (Nov. 15.88-91p3, 15.98-01p6, 16.77-79p3 & 17.77-81p5), Sabino Canyon Obs. (Nov. 16.12-13p4), San Marcello Pistoiese Obs. (Nov. 16.71-73p3), Carmelita Obs. (Nov. 16.79-80p3 & 17.85-86p3), Capannoli Obs. (Nov. 16.81-83p3), Mallorca Obs. (Nov. 16.87-88p6), Sandlot Obs. (Nov. 17.05-06p3), Young/Table Mtn. (Nov. 17.09-17p4), Spacewatch 1.8m (Nov. 17.17-18p3), Schiaparelli Obs. (Nov. 17.75p1 & 17.84p1), Inastars Obs. (Nov. 17.76p3), and New Millennium Obs. (Nov. 17.86-91p8)

MPEC 2008-W06 - "00:02 UT" - 2005 VA123, 2007 TG422, 2007 XV50, 2008 CS190, 2008 CT190

K08CJ0T 2008 CT190 (i=38.9°, q=34.679 AU, Q=70.387 AU, H=6.2 ~195 km) from Kitt Peak Natl. Obs. (KPNO) (Oct. 25.45-49p2 & 27.41-44p2)
K08CJ0S 2008 CS190 (KBO, q=35.798 AU, Q=48.297 AU, H=6.5 ~170 km) from KPNO (Oct. 28.43-47p2 & 29.42-45p2)
K07X50V 2007 XV50 (KBO, q=43.841 AU, Q=47.763 AU, H=5.0 ~339 km) from KPNO (Oct. 25.48-50p2 & 27.47-49p2)
K07Tg2G 2007 TG422 (q=35.544 AU, Q=991.702 AU, H=6.1 ~204 km) from KPNO (Oct. 26.45-48p2, 27.39p1 & 27.43p1)
K05VC3A 2005 VA123 (KBO, q=29.492 AU, Q=49.434 AU, H=6.9 ~141 km) from KPNO (Oct. 27.48-51p2 & 29.48-50p2)

Observers on 18 November '08

A total of 27 observing facilities appear in today's MPECs.

Code	Observer / observatory
`B37`	Ametlla del Valles Obs. in Spain, 12 in MPEC 2008-W08 -- 2008 SQ1, 2008 SP7, 2005 WS55, 2005 TZ51, 1994 AW1, 85774, 65996, 36236, 198856, 188452, 16834, 162679
`A50`	Andrushivka Obs. in the Ukraine, 1 in MPEC 2008-W08 -- 136923
`J51`	Atlante Obs. in the Canary Islands, 1 in MPEC 2008-W08 -- 162900
`B75`	Betelgeuse Station, 1 in MPEC 2008-W08 -- 162900
`B09`	Capannoli Obs. in Italy, 1 in MPEC 2008-W07 -- 2008 UD253
`B20`	Carmelita Obs. in Spain, 1 in MPEC 2008-W07 -- 2008 UD253
`703`	Catalina Sky Survey (CSS) in Arizona, 17 in MPECs 2008-W07, 2008-W08, 2008-W09, 2008-W10, 2008-W11 & 2008-W12 -- 2008 WE, 2008 WD, 2008 WC, 2008 WB, 2008 VG14, 2008 UD253, 2008 SQ1, 2008 QY, 2008 MR1, 2004 SB20, 65996, 194268, 194126, 155110, 141079, 137799, 3200
`807&`	Lawrence H. Wasserman via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2008-W08 -- 2002 OM4
`A77`	Chante-Perdrix Obs. in France, 2 in MPEC 2008-W08 -- 2008 SX245, 163000
`448`	Desert Moon Obs. in New Mexico, 6 in MPEC 2008-W08 -- 2008 VG14, 2008 VE, 2008 UE7, 2008 TK157, 2008 SX7, 2006 GQ2
`B19`	Iluro Obs. in Spain, 4 in MPEC 2008-W08 -- 2006 SZ217, 85774, 162900, 142348
`B15`	Inastars Obs. in Germany, 1 in MPEC 2008-W07 -- 2008 UD253
`695`	Kitt Peak Natl. Obs. (KPNO) in Arizona, 5 in MPEC 2008-W06 -- 2008 CT190, 2008 CS190, 2007 XV50, 2007 TG422, 2005 VA123
`J75`	La Sagra Obs. in Spain, 1 in MPEC 2008-W07 -- 2008 UD253
`620`	Mallorca Obs. on Mallorca, 1 in MPEC 2008-W07 -- 2008 UD253
`A24`	New Millennium Obs. in Italy, 1 in MPEC 2008-W07 -- 2008 UD253
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 4 in MPEC 2008-W08 -- 2008 SH82, 2008 QT3, 2005 TZ51, 1996 TE9
`J53`	Posadas Obs. in Spain, 4 in MPEC 2008-W08 -- 2008 SQ1, 2005 TZ51, 3360, 1865
`473`	Remanzacco Obs. in Italy, 1 in MPEC 2008-W09 -- 2008 WB
`854`	Sabino Canyon Obs. in Arizona, 5 in MPECs 2008-W07, 2008-W09, 2008-W10, 2008-W11 & 2008-W12 -- 2008 WE, 2008 WD, 2008 WC, 2008 WB, 2008 UD253
`104`	San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2008-W07 -- 2008 UD253
`H36`	Sandlot Obs. in Kansas, 2 in MPECs 2008-W07 & 2008-W09 -- 2008 WB, 2008 UD253
`204`	Schiaparelli Obs. in Italy, 2 in MPECs 2008-W07 & 2008-W09 -- 2008 WB, 2008 UD253
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2008-W07 -- 2008 UD253
`691`	Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2008-W08 -- 2008 UP100, 90075
`291`	Spacewatch 1.8m telescope in Arizona, 18 in MPECs 2008-W07 & 2008-W08 -- 2008 VR4, 2008 VQ4, 2008 VL14, 2008 VB1, 2008 UZ91, 2008 UT99, 2008 US5, 2008 UP100, 2008 UF7, 2008 UD253, 2008 TD27, 2008 TD2, 2008 TA1, 2008 SV11, 2008 SR7, 2008 SR1, 2008 RM98, 2004 TQ13
`6735`	Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2008-W07 & 2008-W09 -- 2008 WB, 2008 UD253

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

Impact Risk Monitoring on 18 November '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 WC	JPL Sentry	2226	2021-2106	20	1.1e-07	-7.57	-8.26	0	JPL: "Analysis based on 11 observations spanning .17467 days (2008-Nov-18.18121 to 2008-Nov-18.35588)." Diameter approximately 0.021 km. from mean, weighted H=26.1.

2008 VL14	JPL Sentry	2226	2060-2107	4	9.4e-07	-3.75	-3.95	0	JPL: "Analysis based on 29 observations spanning 8.8674 days (2008-Nov-09.2656 to 2008-Nov-18.13303)." Diameter approximately 0.215 km. from mean, weighted H=21.0.
2008 VL14	NEODyS	1415	2060-2076	3	1.03e-06	-3.70	-3.90	0	NEODyS: "Based on 30 optical observations (of which 1 are rejected as outliers) from 2008/11/09.266 to 2008/11/18.134."

2008 VR4	JPL Sentry	2226	2103	1	5.2e-10	-8.55	-8.55	0	JPL: "Analysis based on 18 observations spanning 11.133 days (2008-Nov-07.06772 to 2008-Nov-18.20042)." Diameter approximately 0.088 km. from mean, weighted H=22.9.

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 November '08

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

2226	Noted that JPL Sentry has updated its 2008 VL14 risk assessment - see above Noted that JPL Sentry has updated its 2008 VR4 risk assessment - see above Noted that JPL Sentry has posted 2008 WC as an impact risk - see above The NEOCP has become empty
1833	The NEOCP has become active
1740	Grabbed MPEC 2008-W09 - 2008 WB - see above Grabbed MPEC 2008-W10 - 2008 WC - see above Grabbed MPEC 2008-W11 - 2008 WD - see above Grabbed MPEC 2008-W12 - 2008 WE - see above The NEOCP has become empty
1415	Noted that NEODyS has updated its 2008 VL14 risk assessment - see above Grabbed MPEC 2008-W08 - Daily Orbit Update - see above
0127	Grabbed MPEC 2008-W07 - 2008 UD253 = 1998 XL27 - see above
0020	Grabbed MPEC 2008-W06 - 2005 VA123, 2007 TG422, 2007 XV50, 2008 CS190, 2008 CT190 - see above

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