2008-05-04 Tracking News

Contents on 4 May '08

IAU Minor Planet Center
- NEOCP Activity -- six listings: 6 updated
- New MPECs -- two MPECs
Observers -- 32 observing facilities
Impact Risk Monitoring -- six 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 4 May '08

The MPC's NEO Confirmation Page has 6 listings: 6 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had six updated listings. Of these, one was a "one nighter."

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 4 May '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-J28 time-stamped "06:07 UT" - Daily Orbit Update - see below
MPEC 2008-J29 time-stamped "19:52 UT" - Comet C/2008 J1 (Boattini)

MPEC 2008-J29 - "19:52 UT" - Comet C/2008 J1 (Boattini)

CK08J010 C/2008 J1 (i=60.1°, q=1.808 AU, TP=2008 June 29.358 TT) from Siegen Obs. (May 3.07-10p3), Kanab Obs. (May 3.48p2), Ageo Obs. (May 3.72-73p4), Yatsuka Obs. (May 3.76-77p4), Moriyama Obs. (May 3.79p2), and Cordell-Lorenz Obs. (May 4.40-41p4)

<< DOU on 4 May '08 >> MPEC 2008-J28 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K08J00Q 2008 JQ (small asteroid, arc=1 day, H=25.8 ~23m) from Astronomical Research Obs. (ARO) (May 3.25p3) and LINEAR (May 3.35-39p4)
K08J00P 2008 JP (arc=1 day, H=21.1 ~204m) from ARO (May 3.17-19p3)
K08H38C 2008 HC38 (small asteroid, arc=3 days, H=26.3 ~19m) from ARO (May 3.27-28p3)
K08H04U 2008 HU4 (small asteroid, arc=3 days, H=28.2 ~8m) from Mt. John Obs. (May 3.67p4)
K08H03R 2008 HR3 (small asteroid, Q=4.062 AU, arc=4 days, H=24.9 ~35m) from the Spacewatch 1.8m telescope (May 3.24p3)
K08H03O 2008 HO3 (Q=4.913 AU, arc=4 days, H=17.9 ~891m) from Spacewatch 1.8m (May 2.39-40p3 & 3.38-41p3) and ARO (May 3.26-27p3)
K08H03E 2008 HE3 (Q=4.410 AU, arc=5 days, H=19.2 ~490m) from ARO (May 3.20-22p3) and Spacewatch 1.8m (May 3.33-34p3)
K08H00J 2008 HJ (small asteroid, arc=6 days, H=25.8 ~23m) from Faulkes Telescope South (April 29.57-58p8)
Observations of recently (no longer) risk-listed objects
K08H03D 2008 HD3 (i=52.3°, arc=5 days, H=19.7 ~389m) from Desert Moon Obs. (May 3.36-37p3)
K08H00H 2008 HH (almost small, arc=9 days, H=22.0 ~135m) from ARO (May 3.30-32p3)
K08H00E 2008 HE (q=0.114 AU, Q=4.436 AU, arc=15 days, H=18.0 ~851m) from Desert Moon Obs. (May 3.15-18p3)
K08GB0D 2008 GD110 (small asteroid, arc=10 days, H=24.5 ~43m) from Schiaparelli Obs. (April 22.94-96p5)
K08GB0A 2008 GA110 (small asteroid, Q=4.492 AU, arc=19 days, H=22.1 ~129m) from Desert Moon Obs. (May 3.29-33p3)
K08F07K 2008 FK7 (small asteroid, arc=33 days, H=23.0 ~85m) from Tiki Obs. (May 3.48p1 & 3.56p1) and Mt. John Obs. (May 3.65-66p4)
Observations of small asteroids (H>22.0)
K08J00C 2008 JC (arc=2 days, H=26.5 ~17m) from ARO (May 3.25-26p3)
K08H03J 2008 HJ3 (arc=5 days, H=23.2 ~78m) from ARO (May 3.19-20p4) and Madonna di Dossobuono Obs. (May 3.91-92p3)
K08H02E 2008 HE2 (arc=6 days, H=23.6 ~65m) from Stia Obs. (May 2.92p3)
K08H02D 2008 HD2 (arc=6 days, H=25.1 ~32m) from ARO (May 3.20-21p4)
K08H02A 2008 HA2 (arc=7 days, H=24.4 ~45m) from Spacewatch 1.8m (May 3.35-36p3 at V=21.7-22.1)
K08GB0E 2008 GE110 (arc=19 days, H=22.1 ~129m) from Spacewatch 1.8m (May 3.31-32p3 at V=21.8-22.2)
K08G20W 2008 GW20 (arc=21 days, H=22.1 ~129m) from the Spacewatch 0.9m telescope (May 2.40-44p3)
K08G20U 2008 GU20 (arc=22 days, H=23.1 ~81m) from ARO (May 3.23-24p3)
Observations of other objects
K08J00O 2008 JO (arc=2 days, H=18.4 ~708m) from ARO (May 3.17-18p3), Tiki Obs. (May 3.23-27p3), and Alter Satzberg Obs. (May 3.83-84p3)
K08J00N 2008 JN (q=0.206 AU, arc=2 days, H=20.7 ~245m) from ARO (May 3.23-24p3) and Mt. John Obs. (May 3.55p4)
K08J00J 2008 JJ (i=44.6°, arc=3 days, H=18.8 ~589m) from Hormersdorf Obs. (May 1.98p1 & 2.04p1)
K08J00G 2008 JG (arc=2 days, H=20.9 ~224m) from ARO (May 3.28-29p3)
K08H37Y 2008 HY37 (arc=4 days, H=18.3 ~741m) from Spacewatch 1.8m (May 3.20-21p3 at V=21.9-22.2)
K08H04V 2008 HV4 (arc=3 days, H=19.3 ~467m) from Mt. John Obs. (May 3.62-63p3)
K08H03S 2008 HS3 (arc=4 days, H=21.5 ~170m) from Stia Obs. (May 2.82-83p4), Balzaretto Obs. (May 2.93-95p2), Petit Jean Mtn. South Obs. (PJMSO) (May 3.21-22p6), Alter Satzberg Obs. (May 3.86-88p5), Spacewatch 1.8m (May 4.14-16p3), and Greiner Research Obs. (GRO) (May 4.20-21p11)
K08H02F 2008 HF2 (arc=7 days, H=19.5 ~426m) from ARO (May 3.30-32p3) and Naef Obs. (May 3.93-95p2)
K08H02C 2008 HC2 (i=40.2°, arc=6 days, H=20.7 ~245m) from Spacewatch 1.8m (May 3.21-23p3)
K08H01W 2008 HW1 (q=0.102 AU, Q=5.065 AU, arc=35 days, H=17.4 ~1.12 km) from Stia Obs. (May 2.84-86p4), PJMSO (May 3.28-29p7), Capannoli Obs. (May 3.94-95p3), Naef Obs. (May 3.98-01p6), and Gelenau Obs. (May 4.03-04p3)
K08GB0J 2008 GJ110 (q=0.278 AU, arc=14 days, H=20.5 ~269m) from Schiaparelli Obs. (April 23.02p2)
K08GB0B 2008 GB110 (i=36.1°, arc=19 days, H=19.8 ~371m) from Desert Moon Obs. (May 3.21-26p3)
K08G03V 2008 GV3 (i=72.9°, arc=24 days, H=18.5 ~676m) from Schiaparelli Obs. (April 23.03-04p3)
K08F06N 2008 FN6 (arc=35 days, H=21.3 ~186m) from the Mt. Lemmon Survey (MLS) (May 3.28-30p4) and Madonna di Dossobuono Obs. (May 3.88-89p3)
K08E05V 2008 EV5 (arc=60 days, H=20.1 ~323m) from Spacewatch 1.8m (May 3.16-17p3 at V=22.2)
K08D00Y 2008 DY (Q=4.342 AU, arc=67 days, H=20.9 ~224m) from Desert Moon Obs. (May 3.40-42p3)
K08D00E 2008 DE (arc=81 days, H=19.6 ~407m) from PJMSO (May 3.30-31p7) and Hamamatsu-Yuto Obs. (May 3.73-77p9)
K08C23P 2008 CP23 (arc=92 days, H=19.6 ~407m) from PJMSO (May 3.19-20p6)
K08A00E 2008 AE (arc=2 opp, H=19.8 ~371m) from Madonna di Dossobuono Obs. (May 3.93-94p3)
K07VI3R 2007 VR183 (Q=4.353 AU, arc=232 days, H=17.5 ~1.07 km) from PJMSO (May 3.21p6)
K07V04Q 2007 VQ4 (arc=3 opp, H=16.0 ~2.14 km, q=1.271 AU) from PJMSO (May 3.23-24p5)
K07A12E 2007 AE12 (arc=4 opp, H=19.7 ~389m) from MLS (May 3.23-24p4)
K06B55G 2006 BG55 (arc=3 opp, H=18.4 ~708m) from PJMSO (May 3.18p5)
K05T45U 2005 TU45 (arc=3 opp, H=17.0 ~1.35 km) from Wildberg Obs. (May 4.02-03p5)
K05S71E 2005 SE71 (arc=2 opp, H=18.1 ~812m) from PJMSO (May 3.15-16p5)
K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from PJMSO (May 3.25p6) and Hamamatsu-Yuto Obs. (May 3.67-72p7)
K05L08G 2005 LG8 (q=0.303 AU, arc=4 opp, H=16.9 ~1.41 km) from the Catalina Sky Survey (CSS) (May 3.14-17p4)
K05G59E 2005 GE59 (arc=3 opp, H=18.0 ~851m) from MLS (May 3.25-27p4)
K05G00G 2005 GG (arc=3 opp, H=16.1 ~2.04 km, q=0.694 AU) from Madonna di Dossobuono Obs. (May 3.90p3)
K05A19N 2005 AN19 (i=39.8°, arc=3 opp, H=18.0 ~851m) from Bergen-Enkheim Obs. (May 3.03-07p4)
K04F32N 2004 FN32 (arc=4 opp, H=19.1 ~513m) from Hormersdorf Obs. (May 1.95-96p4) and Capannoli Obs. (May 3.96-97p2)
K04C02R 2004 CR2 (arc=2 opp, H=19.3 ~467m) from CSS (May 3.17-20p4)
K03G00W 2003 GW (i=49.4°, arc=3 opp, H=16.7 ~1.55 km) from PJMSO (May 3.16-17p5)
K03A01D 2003 AD1 (arc=3 opp, H=18.2 ~776m) from ARO (May 3.32-33p3)
K02R25U 2002 RU25 (arc=3 opp, H=17.4 ~1.12 km) from MLS (May 3.17-19p4)
K02J00C 2002 JC (i=40.9°, arc=6 opp, H=17.2 ~1.23 km) from PJMSO (May 3.27-28p5) and Wildberg Obs. (May 3.85p4)
K02F05W 2002 FW5 (i=46.4°, arc=3 opp, H=19.3 ~467m) from the Siding Spring Survey (SSS) (May 3.56-59p4)
K01Q34C 2001 QC34 (arc=2 opp, H=20.0 ~339m) from SSS (May 2.49-51p3)
J99S05O 1999 SO5 (arc=2 opp, H=20.9 ~224m) from PJMSO (May 3.19p5)
H2034 172034 2001 WR1 from SSS (May 3.63-65p4)
G3818 163818 2003 RX7 from Desert Moon Obs. (May 3.12-13p3)
G3693 163693 Atira (2003 CP20) from LINEAR (May 3.14-18p5)
G2173 162173 1999 JU3 from CSS (May 3.18-20p4)
F3591 153591 2001 SN263 from SSS (May 2.57-60p4)
F2889 152889 2000 CF59 from Desert Moon Obs. (May 3.46-47p2)
E2040 142040 2002 QE15 from Leura Obs. (May 3.43-44p3)
D7170 137170 1999 HF1 from Schiaparelli Obs. (April 23.09-11p3)
B2985 112985 2002 RS28 from SSS (May 2.53-55p3)
54789 54789 2001 MZ7 from LINEAR (May 3.41-45p5)
53789 53789 2000 ED104 from LINEAR (May 3.25-29p4)
35107 35107 1991 VH from PJMSO (May 3.29-30p5)
01866 1866 Sisyphus (1972 XA) from CSS (May 3.35-37p4) and Capannoli Obs. (May 3.92p2)

Observers on 4 May '08

A total of 32 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 1 in MPEC 2008-J29 -- C/2008 J1
`B03`	Alter Satzberg Obs. in Austria, 2 in MPEC 2008-J28 -- 2008 JO, 2008 HS3
`H55`	Astronomical Research Obs. (ARO) in Illinois, 15 in MPEC 2008-J28 -- 2008 JQ, 2008 JP, 2008 JO, 2008 JN, 2008 JG, 2008 JC, 2008 HO3, 2008 HJ3, 2008 HH, 2008 HF2, 2008 HE3, 2008 HD2, 2008 HC38, 2008 GU20, 2003 AD1
`A81`	Balzaretto Obs. in Italy, 1 in MPEC 2008-J28 -- 2008 HS3
`A74`	Bergen-Enkheim Obs. in Germany, 1 in MPEC 2008-J28 -- 2005 AN19
`B09`	Capannoli Obs. in Italy, 3 in MPEC 2008-J28 -- 2008 HW1, 2004 FN32, 1866
`703`	Catalina Sky Survey (CSS) in Arizona, 4 in MPEC 2008-J28 -- 2005 LG8, 2004 CR2, 162173, 1866
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2008-J29 -- C/2008 J1
`448`	Desert Moon Obs. in New Mexico, 7 in MPEC 2008-J28 -- 2008 HE, 2008 HD3, 2008 GB110, 2008 GA110, 2008 DY, 163818, 152889
`E10`	Faulkes Telescope South in New South Wales, 1 in MPEC 2008-J28 -- 2008 HJ
`B32`	Gelenau Obs. in Germany, 1 in MPEC 2008-J28 -- 2008 HW1
`H51`	Greiner Research Obs. in Wisconsin, 1 in MPEC 2008-J28 -- 2008 HS3
`379`	Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2008-J28 -- 2008 DE, 2005 NB7
`A35`	Hormersdorf Obs. in Germany, 2 in MPEC 2008-J28 -- 2008 JJ, 2004 FN32
`682`	Kanab Obs. in Utah, 1 in MPEC 2008-J29 -- C/2008 J1
`704`	LINEAR in New Mexico, 4 in MPEC 2008-J28 -- 2008 JQ, 54789, 53789, 163693
`E17`	Leura Obs. in New South Wales, 1 in MPEC 2008-J28 -- 142040
`560`	Madonna di Dossobuono Obs. in Italy, 4 in MPEC 2008-J28 -- 2008 HJ3, 2008 FN6, 2008 AE, 2005 GG
`900`	Moriyama Obs. in Japan, 1 in MPEC 2008-J29 -- C/2008 J1
`474`	Mt. John Obs. in New Zealand, 4 in MPEC 2008-J28 -- 2008 JN, 2008 HV4, 2008 HU4, 2008 FK7
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 4 in MPEC 2008-J28 -- 2008 FN6, 2007 AE12, 2005 GE59, 2002 RU25
`A13`	Naef Obs. in Switzerland, 2 in MPEC 2008-J28 -- 2008 HW1, 2008 HF2
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 13 in MPEC 2008-J28 -- 2008 HW1, 2008 HS3, 2008 DE, 2008 CP23, 2007 VR183, 2007 VQ4, 2006 BG55, 2005 SE71, 2005 NB7, 2003 GW, 2002 JC, 1999 SO5, 35107
`204`	Schiaparelli Obs. in Italy, 4 in MPEC 2008-J28 -- 2008 GV3, 2008 GJ110, 2008 GD110, 137170
`E12`	Siding Spring Survey (SSS) in New South Wales, 5 in MPEC 2008-J28 -- 2002 FW5, 2001 QC34, 172034, 153591, 112985
`510`	Siegen Obs. in Germany, 1 in MPEC 2008-J29 -- C/2008 J1
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2008-J28 -- 2008 GW20
`291`	Spacewatch 1.8m telescope in Arizona, 9 in MPEC 2008-J28 -- 2008 HY37, 2008 HS3, 2008 HR3, 2008 HO3, 2008 HE3, 2008 HC2, 2008 HA2, 2008 GE110, 2008 EV5
`A78`	Stia Obs. in Italy, 3 in MPEC 2008-J28 -- 2008 HW1, 2008 HS3, 2008 HE2
`F85`	Tiki Obs. in Tahiti, 2 in MPEC 2008-J28 -- 2008 JO, 2008 FK7
`198`	Wildberg Obs. in Germany, 2 in MPEC 2008-J28 -- 2005 TU45, 2002 JC
`367`	Yatsuka Obs., 1 in MPEC 2008-J29 -- C/2008 J1

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

Impact Risk Monitoring on 4 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 JP	NEODyS	1243	2013-2090	63	5.63e-09	-6.25	-6.87	0	NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2008/05/02.207 to 2008/05/03.244."

2008 HC38	NEODyS	1243	2029-2066	2	4.71e-08	-7.38	-7.38	0	NEODyS: "Based on 25 optical observations (of which 1 are rejected as outliers) from 2008/04/30.299 to 2008/05/03.276."

2008 HU4	NEODyS	1243	2040-2086	17	5.39e-05	-6.25	-6.53	0	NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2008/04/30.325 to 2008/05/03.671."

2008 HO3	NEODyS	1241	R E M O V E D						-

2008 HE3	NEODyS	1243	2049	1	1.53e-11	-8.17	-8.17	0	NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2008/04/28.264 to 2008/05/03.343."

2008 HJ	NEODyS	1243	2077-2088	4	5.1e-05	-4.95	-4.96	0	NEODyS: "Based on 79 optical observations (of which 1 are rejected as outliers) from 2008/04/24.248 to 2008/04/30.377."

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 4 May '08

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

1958	Grabbed MPEC 2008-J29 - Comet C/2008 J1 (Boattini) - see above
1243	Noted that NEODyS has updated its 2008 HC38 risk assessment - see above Noted that NEODyS has updated its 2008 HE3 risk assessment - see above Noted that NEODyS has updated its 2008 HJ risk assessment - see above Noted that NEODyS has updated its 2008 HU4 risk assessment - see above Grabbed MPEC 2008-J28 - Daily Orbit Update - see above
1241	Noted that NEODyS has removed 2008 HO3 as an impact risk - see above Noted that NEODyS has posted 2008 JP as an impact risk - see above

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