2008-05-07 Tracking News

Contents on 7 May '08

IAU Minor Planet Center
- NEOCP Activity -- eleven listings: 5 new, 6 updated
- New MPECs -- three MPECs
Observers -- 39 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 7 May '08

The MPC's NEO Confirmation Page has 11 listings: 5 new, 6 updated

When last checked at 2353 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had five new and six updated listings. Of these, six were "one nighters." So far The Tracking News has counted a total of thirteen 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 7 May '08

Minor Planet Electronic Circulars

As of last check at 2353 UTC, there have been three MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-J38 time-stamped "06:08 UT" - Daily Orbit Update - see below
MPEC 2008-J39 time-stamped "19:40 UT" - Comet C/2008 J2 (Beshore) - see below
MPEC 2008-J40 time-stamped "21:31 UT" - 2008 JO14

MPEC 2008-J40 - "21:31 UT" - 2008 JO14

K08J14O 2008 JO14 (H=21.3 ~186m) was discovered at 0708 UT on 7 May by the Catalina Sky Survey (CSS), which observed it at May 7.30-34p7. The discovery was confirmed by Jim Young via Table Mtn. Obs. (May 7.34-36p4), Sabino Canyon Obs. (May 7.36p3), and Gnosca Obs. (May 7.85-88p3).

MPEC 2008-J39 - "19:40 UT" - Comet C/2008 J2 (Beshore)

CK08J020 C/2008 J2 (i=16.6°, q=1.091 AU, TP=2008 Oct. 7.073 TT) from the Mt. Lemmon Survey (MLS) (May 6.45-46p4 & 7.41-43p4), Tiki Obs. (May 6.52-56p3, 7.56p1 & 7.64p1), North Ryde Obs. (May 6.52-55p3), Mt. John Obs. (May 6.53-55p3), Moriyama Obs. (May 6.58-59p5), Bisei Spaceguard Center (May 6.67p4), San Marcello Pistoiese Obs. (May 6.90-94p3), Farra d'Isonzo Obs. (May 6.90-92p2), Mt. Matajur Obs. (May 6.95-97p2), Vallemare di Borbona Obs. (May 6.96-98p3), Great Shefford Obs. (May 6.96-97p4), Siegen Obs. (May 6.97-99p4), Carmelita Obs. (May 6.97-98p3), Schiaparelli Obs. (May 7.03-04p2 & 7.09p1), Wildberg Obs. (May 7.04-06p3), Modra Obs. (May 7.07-08p3), CEAMIG-REA (May 7.08-09p3), Los Molinos Obs. (May 7.28-30p4), Sabino Canyon Obs. (May 7.29-32p6), Table Mtn. Obs. (May 7.32-35p4), and RAS Obs. Mayhill (May 7.36-37p2)

<< DOU on 7 May '08 >> MPEC 2008-J38 - "06:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K08J03L 2008 JL3 (small asteroid, arc=1 day, H=25.5 ~27m) from Astronomical Research Obs. (ARO) (May 6.25-26p3) and Tiki Obs. (May 6.30-34p3)
K08J00Q 2008 JQ (small asteroid, arc=4 days, H=25.6 ~26m) from ARO (May 6.27-28p3)
K08J00P 2008 JP (arc=4 days, H=20.8 ~234m) from the Spacewatch 1.8m telescope (May 6.20-22p3)
K08H38C 2008 HC38 (small asteroid, arc=6 days, H=26.3 ~19m) from ARO (May 6.22-23p3)
K08H38B 2008 HB38 (arc=6 days, H=21.2 ~195m) from ARO (May 6.18-20p3)
K08H04U 2008 HU4 (small asteroid, arc=5 days, H=28.3 ~7m) from Tiki Obs. (May 5.46-51p2 & 5.55p1)
K08H03R 2008 HR3 (small asteroid, Q=4.022 AU, arc=7 days, H=24.8 ~37m) from Tiki Obs. (May 6.38-41p3)
Observations of recently (no longer) risk-listed objects
K08H03D 2008 HD3 (i=51.9°, arc=8 days, H=19.8 ~371m) from ARO (May 6.27-28p3)
K08H00G 2008 HG (small asteroid, arc=8 days, H=23.8 ~59m) from the Spacewatch 0.9m telescope (May 2.41-43p2)
K08G20O 2008 GO20 (small asteroid, arc=27 days, H=22.3 ~117m) from Desert Moon Obs. (May 6.14-17p2)
K08F06T 2008 FT6 (arc=107 days, H=17.5 ~1.07 km) from Desert Moon Obs. (May 6.26-31p3)
Observations of small asteroids (H>22.0)
K08J02V 2008 JV2 (arc=3 days, H=24.8 ~37m) from Spacewatch 1.8m (May 6.39-40p3)
K08J02U 2008 JU2 (arc=3 days, H=22.7 ~98m) from ARO (May 6.29-30p3)
K08H03J 2008 HJ3 (arc=7 days, H=23.2 ~78m) from ARO (May 6.22-23p3)
K08H02D 2008 HD2 (arc=7 days, H=25.0 ~34m) from Spacewatch 0.9m (May 3.14-18p3)
K08H02B 2008 HB2 (arc=7 days, H=25.6 ~26m) from Spacewatch 0.9m (May 4.15-17p2)
K08GB0E 2008 GE110 (arc=20 days, H=22.1 ~129m) from Spacewatch 0.9m (May 4.15-18p3)
K08G20W 2008 GW20 (arc=25 days, H=22.1 ~129m) from Spacewatch 0.9m (May 6.39-41p2)
K08F06S 2008 FS6 (arc=37 days, H=22.5 ~107m) from Tiki Obs. (May 5.44-45p2)
Observations of almost-small asteroids (21.7<H<=22.0)
K07M00R 2007 MR (arc=2 opp, H=21.8 ~148m) from Spacewatch 0.9m (May 2.32p1 & 2.36p1)
Observations of other objects
K08J02W 2008 JW2 (arc=2 days, H=19.7 ~389m) from Tiki Obs. (May 5.56-60p3)
K08J00O 2008 JO (arc=4 days, H=18.3 ~741m) from ARO (May 6.07-09p3)
K08J00N 2008 JN (q=0.211 AU, arc=5 days, H=20.7 ~245m) from ARO (May 6.23-24p3)
K08J00J 2008 JJ (i=45.0°, arc=7 days, H=18.9 ~562m) from ARO (May 6.28-30p3), CSS (May 6.38-40p4), and Peter De Cat via Uccle Obs. (May 7.05-10p15)
K08J00G 2008 JG (arc=5 days, H=20.8 ~234m) from Eschenberg Obs. (May 6.87-88p3)
K08H38A 2008 HA38 (arc=6 days, H=20.5 ~269m) from Mt. John Obs. (May 6.42-43p3)
K08H04V 2008 HV4 (arc=6 days, H=19.4 ~446m) from Greiner Research Obs. (GRO) (May 6.21p3), ARO (May 6.26-27p3), LINEAR (May 6.30-33p4), Desert Moon Obs. (May 6.33-34p3), and Tiki Obs. (May 6.48-49p2)
K08H03S 2008 HS3 (arc=6 days, H=21.7 ~155m) from Green Island Obs. (May 5.76-80p3), ARO (May 6.10-14p5), and GRO (May 6.15-16p20)
K08H02F 2008 HF2 (arc=10 days, H=19.6 ~407m) from Desert Moon Obs. (May 6.36-39p3), Spacewatch 0.9m (May 6.44-47p3), and Naef Obs. (May 6.93-94p2)
K08H01Z 2008 HZ1 (arc=10 days, H=19.4 ~446m) from Spacewatch 0.9m (May 6.17-18p2)
K08H01W 2008 HW1 (q=0.102 AU, Q=5.065 AU, arc=37 days, H=17.4 ~1.12 km) from Urseanu Obs. (May 5.87-88p11), CSS (May 6.41-42p3), and Wildberg Obs. (May 6.85-87p3)
K08GB0B 2008 GB110 (i=36.1°, arc=22 days, H=19.7 ~389m) from CSS (May 6.24-26p4)
K08G03Y 2008 GY3 (arc=28 days, H=20.7 ~245m) from Spacewatch 1.8m (May 6.19-20p3)
K08G03Q 2008 GQ3 (arc=29 days, H=18.9 ~562m) from ARO (May 6.08-09p3)
K08E69D 2008 ED69 (i=36.3°, Q=5.048 AU, arc=55 days, H=16.9 ~1.41 km) from Casasco Obs. (May 1.99p1 & 2.04p1)
K08E69C 2008 EC69 (Q=4.458 AU, arc=76 days, H=17.1 ~1.29 km) from Casasco Obs. (May 1.95p1 & 2.00p1)
K08D00E 2008 DE (arc=84 days, H=19.7 ~389m) from Hamamatsu-Yuto Obs. (May 6.72-74p5)
K08C23P 2008 CP23 (arc=95 days, H=19.6 ~407m) from CSS (May 6.21-23p4)
K07VI3R 2007 VR183 (Q=4.353 AU, arc=235 days, H=17.5 ~1.07 km) from Green Island Obs. (May 5.77-80p3) and GRO (May 6.13-14p20)
K07VD7W 2007 VW137 (arc=180 days, H=18.1 ~812m) from Tiki Obs. (May 3.56p1, 3.64p1 & 6.62-64p3)
K07V04Q 2007 VQ4 (arc=3 opp, H=16.0 ~2.14 km, q=1.271 AU) from Green Island Obs. (May 5.77-80p3)
K05S71E 2005 SE71 (arc=2 opp, H=18.2 ~776m) from GRO (May 6.12p3)
K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from Casasco Obs. (May 1.94p1 & 1.00p1), Hamamatsu-Yuto Obs. (May 6.58-65p7), Eschenberg Obs. (May 6.82p3), and Wildberg Obs. (May 6.89-90p5)
K03F01H 2003 FH1 (arc=4 opp, H=18.1 ~812m) from MLS (May 6.20-21p4)
K03B35T 2003 BT35 (i=57.3°, arc=3 opp, H=18.6 ~645m) from Bergen-Enkheim Obs. (May 6.00-03p3)
K02A29F 2002 AF29 (Q=5.239 AU, arc=2 opp, H=19.2 ~490m) from Spacewatch 0.9m (May 3.37-41p3)
K00Q07W 2000 QW7 (arc=2 opp, H=19.8 ~371m) from Spacewatch 0.9m (May 6.27-29p2)
G2039 162039 1996 JG from LINEAR (May 6.24-29p4)
F2964 152964 2000 GP82 from MLS (May 6.13-15p4)
F2942 152942 2000 FN10 from LINEAR (May 6.14-18p5)
F2889 152889 2000 CF59 from Desert Moon Obs. (May 6.42-44p3)
F2679 152679 1998 KU2 from Spacewatch 0.9m (May 5.15-18p3)
E4922 144922 2005 CK38 from LINEAR (May 6.14-18p5)
E1495 141495 2002 EZ11 from MLS (May 6.26-28p4)
D8205 138205 2000 EZ148 from MLS (May 6.26-28p4)
99935 99935 2002 AV4 from MLS (May 6.13-15p4)
86667 86667 2000 FO10 from LINEAR (May 6.24-29p5), MLS (May 6.29-31p4), and Atlante Obs. (May 6.89-90p3)
85628 85628 1998 KV2 from Spacewatch 0.9m (May 4.37-40p3)
85236 85236 1993 KH from LINEAR (May 6.19-23p4)
68278 68278 2001 FC7 from LINEAR (May 6.30-34p5)
53789 53789 2000 ED104 from CSS (May 6.24-26p4)
35107 35107 1991 VH from CSS (May 6.41-42p3)
09856 9856 1991 EE from CSS (May 6.46-47p4)
07482 7482 1994 PC1 from LINEAR (May 6.39-43p4)
05626 5626 1991 FE from LINEAR (May 6.30-34p5)
04954 4954 Eric (1990 SQ) from Mt. Tuffley Obs. (May 6.93-94p3)
03691 3691 Bede (1982 FT) from North Ryde Obs. (May 2.51-54p2)
03288 3288 Seleucus (1982 DV) from LINEAR (May 6.14-18p5) and Mt. Tuffley Obs. (May 6.92p2)
01980 1980 Tezcatlipoca (1950 LA) from North Ryde Obs. (April 29.53-56p2)
01917 1917 Cuyo (1968 AA) from LINEAR (May 6.39-43p5)
01866 1866 Sisyphus (1972 XA) from Atlante Obs. (May 6.94-96p3)

Observers on 7 May '08

A total of 39 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 13 in MPEC 2008-J38 -- 2008 JU2, 2008 JQ, 2008 JO, 2008 JN, 2008 JL3, 2008 JJ, 2008 HV4, 2008 HS3, 2008 HJ3, 2008 HD3, 2008 HC38, 2008 HB38, 2008 GQ3
`J51`	Atlante Obs. in the Canary Islands, 2 in MPEC 2008-J38 -- 86667, 1866
`A74`	Bergen-Enkheim Obs. in Germany, 1 in MPEC 2008-J38 -- 2003 BT35
`300`	Bisei Spaceguard Center in Japan, 1 in MPEC 2008-J39 -- C/2008 J2
`I77`	CEAMIG-REA in Brazil, 1 in MPEC 2008-J39 -- C/2008 J2
`B20`	Carmelita Obs. in Spain, 1 in MPEC 2008-J39 -- C/2008 J2
`B66`	Casasco Obs., 3 in MPEC 2008-J38 -- 2008 ED69, 2008 EC69, 2005 NB7
`703`	Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2008-J38 & 2008-J40 -- 2008 JO14, 2008 JJ, 2008 HW1, 2008 GB110, 2008 CP23, 53789, 35107, 9856
`448`	Desert Moon Obs. in New Mexico, 5 in MPEC 2008-J38 -- 2008 HV4, 2008 HF2, 2008 GO20, 2008 FT6, 152889
`151`	Eschenberg Obs. in Switzerland, 2 in MPEC 2008-J38 -- 2008 JG, 2005 NB7
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2008-J39 -- C/2008 J2
`143`	Gnosca Obs. in Switzerland, 1 in MPEC 2008-J40 -- 2008 JO14
`J95`	Great Shefford Obs. in England, 1 in MPEC 2008-J39 -- C/2008 J2
`B34`	Green Island Obs. in Cyprus, 3 in MPEC 2008-J38 -- 2008 HS3, 2007 VR183, 2007 VQ4
`H51`	Greiner Research Obs. (GRO) in Wisconsin, 4 in MPEC 2008-J38 -- 2008 HV4, 2008 HS3, 2007 VR183, 2005 SE71
`379`	Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2008-J38 -- 2008 DE, 2005 NB7
`704`	LINEAR in New Mexico, 11 in MPEC 2008-J38 -- 2008 HV4, 86667, 85236, 68278, 162039, 152942, 144922, 7482, 5626, 3288, 1917
`844`	Los Molinos Obs. in Uruguay, 1 in MPEC 2008-J39 -- C/2008 J2
`118`	Modra Obs. in Slovakia, 1 in MPEC 2008-J39 -- C/2008 J2
`900`	Moriyama Obs. in Japan, 1 in MPEC 2008-J39 -- C/2008 J2
`474`	Mt. John Obs. in New Zealand, 2 in MPECs 2008-J38 & 2008-J39 -- C/2008 J2, 2008 HA38
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 7 in MPECs 2008-J38 & 2008-J39 -- C/2008 J2, 2003 FH1, 99935, 86667, 152964, 141495, 138205
`B68`	Mt. Matajur Obs., 1 in MPEC 2008-J39 -- C/2008 J2
`J93`	Mt. Tuffley Obs. in England, 2 in MPEC 2008-J38 -- 4954, 3288
`A13`	Naef Obs. in Switzerland, 1 in MPEC 2008-J38 -- 2008 HF2
`423`	North Ryde Obs. in New South Wales, 3 in MPECs 2008-J38 & 2008-J39 -- C/2008 J2, 3691, 1980
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2008-J39 -- C/2008 J2
`854`	Sabino Canyon Obs. in Arizona, 2 in MPECs 2008-J39 & 2008-J40 -- 2008 JO14, C/2008 J2
`104`	San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2008-J39 -- C/2008 J2
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2008-J39 -- C/2008 J2
`510`	Siegen Obs. in Germany, 1 in MPEC 2008-J39 -- C/2008 J2
`691`	Spacewatch 0.9m telescope in Arizona, 12 in MPEC 2008-J38 -- 2008 HZ1, 2008 HG, 2008 HF2, 2008 HD2, 2008 HB2, 2008 GW20, 2008 GE110, 2007 MR, 2002 AF29, 2000 QW7, 85628, 152679
`291`	Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2008-J38 -- 2008 JV2, 2008 JP, 2008 GY3
`673`	Table Mtn. Obs. in southern California, 1 in MPEC 2008-J39 -- C/2008 J2
`6735`	Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2008-J40 -- 2008 JO14
`F85`	Tiki Obs. in Tahiti, 8 in MPECs 2008-J38 & 2008-J39 -- 2008 JW2, 2008 JL3, C/2008 J2, 2008 HV4, 2008 HU4, 2008 HR3, 2008 FS6, 2007 VW137
`0125`	Peter De Cat via Uccle Obs. in Belgium, 1 in MPEC 2008-J38 -- 2008 JJ
`A92`	Urseanu Obs. in Romania, 1 in MPEC 2008-J38 -- 2008 HW1
`A55`	Vallemare di Borbona Obs. in Italy, 1 in MPEC 2008-J39 -- C/2008 J2
`198`	Wildberg Obs. in Germany, 3 in MPECs 2008-J38 & 2008-J39 -- C/2008 J2, 2008 HW1, 2005 NB7

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

Impact Risk Monitoring on 7 May '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2354 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 JL3	NEODyS	1315	2027-2090	9	9.38e-05	-3.90	-3.92	0	NEODyS: "Based on 26 optical observations (of which 2 are rejected as outliers) from 2008/05/05.352 to 2008/05/06.458."

2008 HC38	NEODyS	1315	2029-2057	2	4.9e-08	-7.39	-7.39	0	NEODyS: "Based on 30 optical observations (of which 1 are rejected as outliers) from 2008/04/30.299 to 2008/05/06.230."

2008 HU4	NEODyS	1315	2040-2086	16	1.16e-04	-5.95	-6.27	0	NEODyS: "Based on 36 optical observations (of which 0 are rejected as outliers) from 2008/04/30.325 to 2008/05/05.548."

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 7 May '08

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

2234	Grabbed MPEC 2008-J40 - 2008 JO14 - see above
2100	Grabbed MPEC 2008-J39 - Comet C/2008 J2 (Beshore) - see above
1315	Noted that NEODyS has updated its 2008 HC38 risk assessment - see above Noted that NEODyS has updated its 2008 HU4 risk assessment - see above Grabbed MPEC 2008-J38 - Daily Orbit Update - see above
1314	Noted that NEODyS has posted 2008 JL3 as an impact risk - see above

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