2008-07-02 Tracking News

Contents on 2 July '08

IAU Minor Planet Center
- NEOCP Activity -- four listings: 4 updated
- New MPECs -- three MPECs
Observers -- 21 observing facilities
Impact Risk Monitoring -- two 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 July '08

The MPC's NEO Confirmation Page has 4 listings: 4 updated

When last checked at 2357 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of seven 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 July '08

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there have been three MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-N07 time-stamped "06:06 UT" - Daily Orbit Update - see below
MPEC 2008-N08 time-stamped "11:39 UT" - 2008 NA - see below
MPEC 2008-N09 time-stamped "11:43 UT" - 2008 NB

MPEC 2008-N09 - "11:43 UT" - 2008 NB

K08N00B 2008 NB (H=19.2 ~490m) was discovered at 0945 UT on 1 July by the Catalina Sky Survey (CSS), which observed it at July 1.36-42p8. The discovery was confirmed by Cordell-Lorenz Obs. (July 2.29-36p4) and Dave Balam via Plaskett 1.8m Telescope (July 2.36-37p5).

MPEC 2008-N08 - "11:39 UT" - 2008 NA

K08N00A 2008 NA (small asteroid, Earth MOID=10.0 LD, H=23.6 ~65m) was discovered at 0654 UT on 1 July by CSS, which observed it at July 1.29-38p11 and 2.28p4. The discovery was confirmed by Grasslands Obs. (July 1.36p3), Magdalena Ridge Obs. (MRO) (July 1.38-39p3), Farra d'Isonzo Obs. (July 1.85-86p2), Alter Satzberg Obs. (July 1.86-87p6), Guidestar Obs. (July 1.89-90p3), Schiaparelli Obs. (July 1.90-91p3), and Jim Young via Table Mtn. Obs. (July 2.30-31p4).

<< DOU on 2 July '08 >> MPEC 2008-N07 - "06:06 UT" - Daily Orbit Update

Observations of risk-listed objects
K08E09A 2008 EA9 (small asteroid, arc=36 days, H=27.7 ~10m) from the Spacewatch 1.8m telescope (April 11.25p1)
Observations of recently (no longer) risk-listed objects
K08L16V 2008 LV16 (arc=16 days, H=20.1 ~323m) from Powell Obs. (July 1.24p5)
K08K05Z 2008 KZ5 (arc=33 days, H=20.0 ~339m) from Astronomical Research Obs. (ARO) (July 1.15p3)
K08J24O 2008 JO24 (arc=52 days, H=18.3 ~741m) from ARO (July 1.31-32p3) and CSS (July 1.38-40p4)
Observations of small asteroids (H>22.0)
K08M01Q 2008 MQ1 (arc=1 day, H=24.3 ~47m) from Powell Obs. (July 1.22p4), ARO (July 1.31-32p4), and LINEAR (July 1.38-41p4)
K08L02H 2008 LH2 (arc=27 days, H=24.5 ~43m) from ARO (July 1.12-15p3 at V=21.9-22.1)
K08G03R 2008 GR3 (arc=85 days, H=25.0 ~34m) from ARO (July 1.28-30p3)
K08E07Q 2008 EQ7 (arc=117 days, H=22.6 ~102m) from ARO (July 1.16-18p3)
Observations of other objects
K08M01R 2008 MR1 (Q=7.160 AU, arc=1 day, H=17.9 ~891m) from ARO (July 1.28-30p4)
K08M01P 2008 MP1 (arc=2 days, H=21.7 ~155m) from ARO (July 1.14p3), the Spacewatch 0.9m telescope (July 1.17p3 & 1.28-30p3), and Alter Satzberg Obs. (July 1.93-95p2)
K08M01N 2008 MN1 (i=37.3°, arc=2 days, H=20.1 ~323m) from ARO (July 1.37-38p5)
K08L16Q 2008 LQ16 (arc=17 days, H=20.3 ~295m) from Great Shefford Obs. (June 30.96-01p3) and ARO (July 1.25-27p5)
K08K28V 2008 KV28 (arc=31 days, H=20.4 ~282m) from ARO (July 1.16-19p3)
K08K02W 2008 KW2 (i=37.4°, arc=34 days, H=19.6 ~407m) from ARO (July 1.12-13p3) and Powell Obs. (July 1.16-17p4)
K08J35T 2008 JT35 (Q=4.067 AU, arc=24 days, H=21.2 ~195m) from Powell Obs. (July 1.14-15p5) and Peschiera del Garda Obs. (July 1.97-98p5)
K08J30Z 2008 JZ30 (arc=48 days, H=18.8 ~589m) from ARO (July 1.33-35p3)
K08J26R 2008 JR26 (arc=49 days, H=19.9 ~355m) from ARO (July 1.20p3)
K08H03S 2008 HS3 (arc=62 days, H=21.7 ~155m) from ARO (July 1.25-27p5)
K08E06L 2008 EL6 (arc=118 days, H=21.0 ~214m) from ARO (July 1.33-36p3 at V=22.0-22.2)
K07V04Q 2007 VQ4 (arc=3 opp, H=16.2 ~1.95 km) from the Siding Spring Survey (SSS) (July 1.43-45p3)
K06WC7O 2006 WO127 (arc=3 opp, H=16.1 ~2.04 km, q=0.991 AU) from Spacewatch 0.9m (June 30.32-36p3)
K05G21O 2005 GO21 (arc=3 opp, H=16.4 ~1.78 km) from Boambee Obs. (June 30.35p1, July 1.35p1 & 1.39-41p2) and SSS (July 1.37-39p3)
K03O04B 2003 OB4 (Q=4.516 AU, arc=2 opp, H=19.1 ~513m) from LINEAR (June 4.31-35p4)
K03N00C 2003 NC (q=0.274 AU, arc=4 opp, H=19.2 ~490m) from LINEAR (July 1.33-37p5)
K02W11P 2002 WP11 (arc=3 opp, H=18.0 ~851m) from LINEAR (July 1.22-26p5)
J97N06J 1997 NJ6 (arc=4 opp, H=19.1 ~513m) from Spacewatch 0.9m (June 30.25-27p3)
J94A01W 1994 AW1 (arc=3 opp, H=17.5 ~1.07 km) from Boambee Obs. (June 30.35-38p2, July 1.34p1 & 1.39-41p2)
I4990 184990 2006 KE89 from Inastars Obs. (July 1.89-90p4)
G4400 164400 2005 GN59 from CSS (July 1.32-34p4)
F4715 154715 2004 LB6 from Spacewatch 0.9m (July 1.24-27p3)
F3792 153792 2001 VH75 from LINEAR (July 1.30p1)
E4332 144332 2004 DV24 from CSS (July 1.45-46p4)
A2873 102873 1999 WK11 from Boambee Obs. (June 29.34p1 & 29.40p1)
96189 96189 1991 NT3 from SSS (July 1.39-41p3)
88254 88254 2001 FM129 from LINEAR (July 1.22-26p5)
65996 65996 1998 MX5 from CSS (July 1.41-42p4)
53319 53319 1999 JM8 from CSS (July 1.43-44p4)
39572 39572 1993 DQ1 from Boambee Obs. (June 30.35-38p3, July 1.35p1 & 1.39-41p2)
36236 36236 1999 VV from Boambee Obs. (June 30.36-38p3)
21088 21088 1992 BL2 from Boambee Obs. (June 30.34-37p3, July 1.33-36p2 & 1.40p1)
07889 7889 1994 LX from Jurassien-Vicques Obs. (June 30.90-92p6)
07358 7358 Oze (1995 YA3) from CSS (July 1.43-44p4)
05751 5751 Zao (1992 AC) from LINEAR (July 1.33-37p5)
04660 4660 Nereus (1982 DB) from Spacewatch 0.9m (June 30.44-46p2)
04503 4503 Cleobulus (1989 WM) from SSS (July 1.49-50p3)
04179 4179 Toutatis (1989 AC) from Spacewatch 0.9m (June 30.40-43p3 & July 1.38-41p3)
01980 1980 Tezcatlipoca (1950 LA) from Boambee Obs. (June 27.34p1, 27.42-44p2 & 29.33-39p3), LINEAR (July 1.17-21p5), and CSS (July 1.18p3)

Observers on 2 July '08

A total of 21 observing facilities appear in today's MPECs.

Code	Observer / observatory
`B03`	Alter Satzberg Obs. in Austria, 2 in MPECs 2008-N07 & 2008-N08 -- 2008 NA, 2008 MP1
`H55`	Astronomical Research Obs. (ARO) in Illinois, 16 in MPEC 2008-N07 -- 2008 MR1, 2008 MQ1, 2008 MP1, 2008 MN1, 2008 LQ16, 2008 LH2, 2008 KZ5, 2008 KW2, 2008 KV28, 2008 JZ30, 2008 JR26, 2008 JO24, 2008 HS3, 2008 GR3, 2008 EQ7, 2008 EL6
`432`	Boambee Obs. in New South Wales, 7 in MPEC 2008-N07 -- 2005 GO21, 1994 AW1, 39572, 36236, 21088, 102873, 1980
`703`	Catalina Sky Survey (CSS) in Arizona, 9 in MPECs 2008-N07, 2008-N08 & 2008-N09 -- 2008 NB, 2008 NA, 2008 JO24, 65996, 53319, 164400, 144332, 7358, 1980
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2008-N09 -- 2008 NB
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2008-N08 -- 2008 NA
`651`	Grasslands Obs. in Arizona, 1 in MPEC 2008-N08 -- 2008 NA
`J95`	Great Shefford Obs. in England, 1 in MPEC 2008-N07 -- 2008 LQ16
`A17`	Guidestar Obs. in Germany, 1 in MPEC 2008-N08 -- 2008 NA
`B15`	Inastars Obs. in Germany, 1 in MPEC 2008-N07 -- 184990
`185`	Jurassien-Vicques Obs. in Switzerland, 1 in MPEC 2008-N07 -- 7889
`704`	LINEAR in New Mexico, 8 in MPEC 2008-N07 -- 2008 MQ1, 2003 OB4, 2003 NC, 2002 WP11, 88254, 153792, 5751, 1980
`H01`	Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2008-N08 -- 2008 NA
`A53`	Peschiera del Garda Obs. in Italy, 1 in MPEC 2008-N07 -- 2008 JT35
`6581`	Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2008-N09 -- 2008 NB
`649`	Powell Obs. in Kansas, 4 in MPEC 2008-N07 -- 2008 MQ1, 2008 LV16, 2008 KW2, 2008 JT35
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2008-N08 -- 2008 NA
`E12`	Siding Spring Survey (SSS) in New South Wales, 4 in MPEC 2008-N07 -- 2007 VQ4, 2005 GO21, 96189, 4503
`691`	Spacewatch 0.9m telescope in Arizona, 6 in MPEC 2008-N07 -- 2008 MP1, 2006 WO127, 1997 NJ6, 154715, 4660, 4179
`291`	Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2008-N07 -- 2008 EA9
`6735`	Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2008-N08 -- 2008 NA

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

Impact Risk Monitoring on 2 July '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2357 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 MV1	NEODyS	1346	2026-2090	18	1.5e-07	-5.05	-5.49	0	NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2008/06/30.663 to 2008/07/01.599."

2008 EA9	NEODyS	1630	2061-2090	19	2.88e-05	-6.23	-6.54	0	NEODyS: "Based on 60 optical observations (of which 1 are rejected as outliers) from 2008/03/06.406 to 2008/04/11.248."
2008 EA9	JPL Sentry	1344	2068-2105	11	2.9e-05	-6.22	-6.53	0	JPL: "Analysis based on 59 observations spanning 35.842 days (2008-Mar-06.40551 to 2008-Apr-11.24756)." Diameter approximately 0.010 km. from mean, weighted H=27.7.

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 July '08

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

1630	Noted that NEODyS has updated its 2008 EA9 risk assessment - see above
1346	Grabbed MPEC 2008-N07 - Daily Orbit Update - see above
1345	Grabbed MPEC 2008-N08 - 2008 NA - see above Grabbed MPEC 2008-N09 - 2008 NB - see above
1344	Noted that JPL Sentry has updated its 2008 EA9 risk assessment - see above Noted that NEODyS has posted 2008 MV1 as an impact risk - see above

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