2010-01-17 Tracking News

Contents on 17 January '10

IAU Minor Planet Center
- NEOCP Activity -- one listing: 1 updated
- New MPECs -- four MPECs
Observers -- 30 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
News image catalog
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 17 January '10

The MPC's NEO Confirmation Page has 1 listing: 1 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one updated listing. So far The Tracking News has counted a total of seven listings on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs on 17 January '10

Minor Planet Electronic Circulars

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

MPEC 2010-B03 time-stamped "07:11 UT" - Daily Orbit Update - see below
MPEC 2010-B04 time-stamped "13:57 UT" - 2010 AN61 - see below
MPEC 2010-B05 time-stamped "13:59 UT" - 2010 BB - see below
MPEC 2010-B06 time-stamped "14:02 UT" - 2010 BC

MPEC 2010-B06 - "14:02 UT" - 2010 BC

K10B00C 2010 BC (small asteroid, Earth MOID=5.1 LD, H=22.2 ~123m) was discovered at 0622 UT on 16 Jan. by the Catalina Sky Survey (CSS), which observed it at Jan. 16.27p2 and 16.32-34p13. The discovery was confirmed by Magdalena Ridge Obs. (MRO) (Jan. 16.32-35p5 & 17.45-48p4), Sabino Canyon Obs. (Jan. 16.33p3), Tenagra II Obs. (Jan. 16.44p3 & 17.33p3), Tzec Maun Obs. Mayhill (Jan. 16.47p3), Moriyama Obs. (Jan. 16.51-52p2 & 17.55-56p2), Cristovao Jacques via RAS Obs. Moorook (Jan. 16.65p4), Farra d'Isonzo Obs. (Jan. 16.84-85p2), Raheny Obs. (Jan. 16.90-91p3), An Carraig Obs. (Jan. 16.92-94p4), Great Shefford Obs. (Jan. 17.02-03p4), Los Molinos Obs. (Jan. 17.19p5), the Spacewatch 1.8m telescope (Jan. 17.27-28p3), Mt. John Obs. (Jan. 17.47p4), and Ernesto Guido via RAS Obs. Mayhill (Jan. 17.48-49p2). This object will be coming within ten lunar distances (LD) of Earth, reaching 7.7 LD on 24 Jan.

MPEC 2010-B05 - "13:59 UT" - 2010 BB

K10B00B 2010 BB (risk-listed, Earth MOID=4.3 LD, H=19.8 ~371m) was discovered at 0152 UT on 16 Jan. by the Mt. Lemmon Survey (MLS), which observed it at Jan. 16.08-13p8. The discovery was confirmed by MRO (Jan. 16.13-17p5), Sabino Canyon Obs. (Jan. 16.14-16p3), the SZTE Asteroid Program (Jan. 16.69p3), and Tenagra II Obs. (Jan. 17.08p3).

MPEC 2010-B04 - "13:57 UT" - 2010 AN61

K10A61N 2010 AN61 (small asteroid, Earth MOID=7.8 LD, H=27.0 ~13m) was discovered at 0808 UT on 15 Jan. by CSS, which observed it at Jan. 15.34-36p4 and 15.46-49p4. The discovery was confirmed by Sabino Canyon Obs. (Jan. 15.48-49p2), Tenagra II Obs. (Jan. 15.49-50p2, 16.26p3 & 17.35p3), Gnosca Obs. (Jan. 15.95-99p2), Farra d'Isonzo Obs. (Jan. 15.96-98p2), New Millennium Obs. (Jan. 15.97-98p9), Remanzacco Obs. (Jan. 15.99p2), Schiaparelli Obs. (Jan. 16.06-07p3), MRO (Jan. 16.22-25p4, 16.40-42p3 & 17.45-48p3), and Great Shefford Obs. (Jan. 17.04p3). This object is now within ten lunar distances (LD) of Earth, reaching 8.0 LD on 20 Jan.

<< DOU on 17 Jan. '10 >> MPEC 2010-B03 - "07:11 UT" - Daily Orbit Update

Observations of risk-listed objects
K09X00O 2009 XO (arc=38 days, H=20.5 ~269m) from MRO (Jan. 16.51-55p4)
Observations of recently (no longer) risk-listed objects
K10A30E 2010 AE30 (small asteroid, arc=6 days, H=23.6 ~65m) from Tenagra II Obs. (Jan. 16.24-25p3)
K10A00K 2010 AK (arc=11 days, H=19.3 ~467m) from Astronomical Research Obs. Westfield (ARO Westfield) (Jan. 13.37p3), Desert Moon Obs. (Jan. 16.26-31p3), and Spacewatch 1.8m (Jan. 17.22-23p3)
K10A00J 2010 AJ (Q=4.575 AU, arc=10 days, H=20.2 ~309m) from Spacewatch 1.8m (Jan. 16.37-38p3)
K09X06T 2009 XT6 (arc=34 days, H=20.2 ~309m) from MRO (Jan. 16.37-39p4)
Observations of small asteroids (H>22.0)
K10A60N 2010 AN60 (arc=2 days, H=26.9 ~14m) from Tenagra II Obs. (Jan. 16.31-32p2) and Great Shefford Obs. (Jan. 17.10-11p3)
K10A60M 2010 AM60 (arc=2 days, H=23.9 ~56m) from LINEAR (Jan. 16.26-32p10), Tenagra II Obs. (Jan. 16.30-31p3), and Great Shefford Obs. (Jan. 17.09-10p3)
K10A60L 2010 AL60 (arc=2 days, H=22.4 ~112m) from Libbiano Obs. (Jan. 15.74-75p3) and Tenagra II Obs. (Jan. 16.25-26p3)
K02X38Y 2002 XY38 (arc=2 opp, H=22.8 ~93m) from Desert Moon Obs. (Jan. 16.35-40p3)
Observations of other objects
K10A60O 2010 AO60 (arc=2 days, H=21.4 ~178m) from Great Shefford Obs. (Jan. 17.16p3)
K10A00E 2010 AE (arc=11 days, H=19.5 ~426m) from LINEAR (Jan. 16.33-38p5) and Spacewatch 1.8m (Jan. 16.42-43p3)
K09WP3E 2009 WE253 (Q=4.016 AU, arc=2 opp, H=17.7 ~977m) from LINEAR (Jan. 16.27-32p5)
K09W06O 2009 WO6 (Q=4.882 AU, arc=89 days, H=17.3 ~1.17 km) from LINEAR (Jan. 16.08-12p4)
K09U18V 2009 UV18 (Q=5.187 AU, arc=2 opp, H=15.7 ~2.45 km, q=1.167 AU) from LINEAR (Jan. 15.48-53p5)
K09U02W 2009 UW2 (arc=118 days, H=20.1 ~323m) from Desert Moon Obs. (Jan. 16.18-23p3)
K09Q08L 2009 QL8 (arc=149 days, H=19.5 ~426m) from MRO (Jan. 16.43-46p4) and Desert Moon Obs. (Jan. 16.49-54p3)
K08X00M 2008 XM (q=0.111 AU, arc=2 opp, H=20.0 ~339m) from Kambah Obs. (Jan. 16.59-62p7)
K07W03V 2007 WV3 (arc=2 opp, H=19.9 ~355m) from MLS (Jan. 16.10-12p4 at V=20.9-22.2)
K07M13K 2007 MK13 (arc=3 opp, H=20.0 ~339m) from Hamamatsu-Yuto Obs. (Jan. 16.50-51p3)
K05U01K 2005 UK1 (Q=4.237 AU, arc=3 opp, H=18.0 ~851m) from MLS (Jan. 16.10-12p4)
K04X44N 2004 XN44 (arc=3 opp, H=18.5 ~676m) from David Tholen's team on Mauna Kea (Dec. 9.32p1 at R=24.5)
K02Y02N 2002 YN2 (i=50.3°, arc=5 opp, H=18.4 ~708m) from LINEAR (Jan. 16.27-32p5)
M9007 229007 2003 XF11 from Desert Moon Obs. (Jan. 16.43-46p3)
L8863 218863 2006 WO127 from Balzaretto Obs. (Jan. 15.81p2)
L5188 215188 2000 NM from LINEAR (Jan. 16.27-30p3)
L4088 214088 2004 JN13 from Balzaretto Obs. (Jan. 15.79p3)
G3696 163696 2003 EB50 from CSS (Jan. 16.13-15p3)
G2998 162998 2001 SK162 from LINEAR (Jan. 16.08-13p5)
G2038 162038 1996 DH from LINEAR (Jan. 16.35-39p4)
F3201 153201 2000 WO107 from CSS (Jan. 16.23-25p4)
E3947 143947 2003 YQ117 from Desert Moon Obs. (Jan. 16.06p4)
D7925 137925 2000 BJ19 from CSS (Jan. 16.27-29p4) and LINEAR (Jan. 16.27-32p5)
96590 96590 1998 XB from LINEAR (Jan. 16.08-13p5) and MLS (Jan. 16.08-10p4)
68359 68359 2001 OZ13 from LINEAR (Jan. 16.47-51p4)
54401 54401 2000 LM from MLS (Jan. 16.10-12p4)
24761 24761 Ahau (1993 BW2) from LINEAR (Jan. 16.39-44p5)
11398 11398 1998 YP11 from LINEAR (Jan. 15.24-27p4)
10165 10165 1995 BL2 from CSS (Jan. 16.27-29p4)
09950 9950 ESA (1990 VB) from CSS (Jan. 16.13-15p4)
05693 5693 1993 EA from LINEAR (Jan. 16.41-45p4)
05626 5626 1991 FE from Balzaretto Obs. (Jan. 15.80p3)
04015 4015 Wilson-Harrington (1979 VA) from Gualba Obs. (Jan. 15.74-75p2)
01627 1627 Ivar (1929 SH) from LINEAR (Jan. 16.34-39p5)

Observers on 17 January '10

A total of 30 observing facilities appear in today's MPECs.

Code	Observer / observatory
`J16`	An Carraig Obs. in Northern Ireland, 1 in MPEC 2010-B06 -- 2010 BC
`H21`	Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-B03 -- 2010 AK
`A81`	Balzaretto Obs. in Italy, 3 in MPEC 2010-B03 -- 218863, 214088, 5626
`703`	Catalina Sky Survey (CSS) in Arizona, 7 in MPECs 2010-B03, 2010-B04 & 2010-B06 -- 2010 BC, 2010 AN61, 163696, 153201, 137925, 10165, 9950
`448`	Desert Moon Obs. in New Mexico, 6 in MPEC 2010-B03 -- 2010 AK, 2009 UW2, 2009 QL8, 2002 XY38, 229007, 143947
`595`	Farra d'Isonzo Obs. in Italy, 2 in MPECs 2010-B04 & 2010-B06 -- 2010 BC, 2010 AN61
`143`	Gnosca Obs. in Switzerland, 1 in MPEC 2010-B04 -- 2010 AN61
`J95`	Great Shefford Obs. in England, 5 in MPECs 2010-B03, 2010-B04 & 2010-B06 -- 2010 BC, 2010 AO60, 2010 AN61, 2010 AN60, 2010 AM60
`442`	Gualba Obs. in Spain, 1 in MPEC 2010-B03 -- 4015
`379`	Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2010-B03 -- 2007 MK13
`415`	Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2010-B03 -- 2008 XM
`704`	LINEAR in New Mexico, 16 in MPEC 2010-B03 -- 2010 AM60, 2010 AE, 2009 WO6, 2009 WE253, 2009 UV18, 2002 YN2, 96590, 68359, 24761, 215188, 162998, 162038, 137925, 11398, 5693, 1627
`B33`	Libbiano Obs. in Italy, 1 in MPEC 2010-B03 -- 2010 AL60
`844`	Los Molinos Obs. in Uruguay, 1 in MPEC 2010-B06 -- 2010 BC
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 6 in MPECs 2010-B03, 2010-B04, 2010-B05 & 2010-B06 -- 2010 BC, 2010 BB, 2010 AN61, 2009 XT6, 2009 XO, 2009 QL8
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-B03 -- 2004 XN44
`900`	Moriyama Obs. in Japan, 1 in MPEC 2010-B06 -- 2010 BC
`474`	Mt. John Obs. in New Zealand, 1 in MPEC 2010-B06 -- 2010 BC
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2010-B03 & 2010-B05 -- 2010 BB, 2007 WV3, 2005 UK1, 96590, 54401
`A24`	New Millennium Obs. in Italy, 1 in MPEC 2010-B04 -- 2010 AN61
`H06%`	Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-B06 -- 2010 BC
`D90.`	Cristovao Jacques in Brazil via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-B06 -- 2010 BC
`J41`	Raheny Obs. in Ireland, 1 in MPEC 2010-B06 -- 2010 BC
`473`	Remanzacco Obs. in Italy, 1 in MPEC 2010-B04 -- 2010 AN61
`461`	SZTE Asteroid Program in Hungary, 1 in MPEC 2010-B05 -- 2010 BB
`854`	Sabino Canyon Obs. in Arizona, 3 in MPECs 2010-B04, 2010-B05 & 2010-B06 -- 2010 BC, 2010 BB, 2010 AN61
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2010-B04 -- 2010 AN61
`291`	Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2010-B03 & 2010-B06 -- 2010 BC, 2010 AK, 2010 AJ, 2010 AE
`926`	Tenagra II Obs. in Arizona, 7 in MPECs 2010-B03, 2010-B04, 2010-B05 & 2010-B06 -- 2010 BC, 2010 BB, 2010 AN61, 2010 AN60, 2010 AM60, 2010 AL60, 2010 AE30
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-B06 -- 2010 BC

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

Impact Risk Monitoring on 17 January '10

**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.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few objects.
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

2010 BB	JPL Sentry	1750	2099-2105	2	1.2e-08	-5.78	-5.78	0	JPL: "Analysis based on 22 observations spanning 1.0033 days (2010-Jan-16.07816 to 2010-Jan-17.08148)." Diameter approximately 0.380 km. from mean, weighted H=19.8.

2009 XO	JPL Sentry	1750	2038-2081	2	3.0e-07	-4.19	-4.26	0	JPL: "Analysis based on 221 observations spanning 38.393 days (2009-Dec-09.152 to 2010-Jan-16.54518)." Diameter approximately 0.270 km. from mean, weighted H=20.5.
2009 XO	NEODyS	1750	2038-2083	2	3.56e-07	-4.16	-4.26	0	NEODyS: "Based on 221 optical observations (of which 0 are rejected as outliers) from 2009/12/09.153 to 2010/01/16.546."

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 17 January '10

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

1750	Noted that JPL Sentry has updated its 2009 XO risk assessment - see above Noted that NEODyS has updated its 2009 XO risk assessment - see above Noted that JPL Sentry has posted 2010 BB as an impact risk - see above
1749	Grabbed MPEC 2010-B03 - Daily Orbit Update - see above Grabbed MPEC 2010-B04 - 2010 AN61 - see above Grabbed MPEC 2010-B05 - 2010 BB - see above Grabbed MPEC 2010-B06 - 2010 BC - see above

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