2008-03-24 Tracking News

Sky view on March 24th at 0000 UTC. A/CC illustration.

There is today one asteroid, the unobserved 2003 FY6, predicted to be within ten lunar distances (LD) of Earth. No others are known to be approaching until early July, but you can expect there to be many, hidden by the bright Moon, or too dim or fast to be caught, or passing outside the areas surveyed most. A/CC's new Timeline page for Earth's Busy Neighborhood shows an average of eighteen objects per month were known to have passed within ten LD since October.

Contents on 24 March '08

IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- seven MPECs
Observers -- 44 observing facilities
Impact Risk Monitoring -- one object
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 24 March '08

The MPC's NEO Confirmation Page is currently empty

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

New MPECs on 24 March '08

Minor Planet Electronic Circulars

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

MPEC 2008-F24 time-stamped "06:06 UT" - Daily Orbit Update - see below
MPEC 2008-F25 time-stamped "11:43 UT" - 2008 FB - see below
MPEC 2008-F26 time-stamped "11:49 UT" - 2008 FC - see below
MPEC 2008-F27 time-stamped "14:28 UT" - Comet C/2006 V1 (Catalina) - see below
MPEC 2008-F28 time-stamped "14:36 UT" - Comet C/2008 C1 (Chen-Gao) - see below
MPEC 2008-F29 time-stamped "14:41 UT" - Comet C/2008 E3 (Garradd) - see below
MPEC 2008-F30 time-stamped "14:56 UT" - Observations of Comets

MPEC 2008-F30 - "14:56 UT" - Observations of Comets

CK08A010 C/2008 A1 (McNaught) from Auckland Obs. (March 17.34p3 & 20.36-37p3)
CK07W010 C/2007 W1 (Boattini) from Gualba Obs. (Feb. 15.24p1), Schiaparelli Obs. (March 13.99p1 & 14.06p1), Monte Deva Obs. (March 16.97-98p5), Auckland Obs. (March 17.40p3, 18.46-47p3 & 20.43p3), La Murta Obs. (March 18.01p3), Ageo Obs. (March 21.69-70p3), and the Catalina Sky Survey (CSS) (March 24.34-36p4)
PK07T060 P/2007 T6 (Catalina) from Ametlla del Valles Obs. (March 2.91p3), CSS (March 4.27-28p3), and Nazaret Obs. (March 23.95-96p3)
CK07T010 C/2007 T1 (McNaught) from Ageo Obs. (March 16.42-43p2) and Auckland Obs. (March 17.36-37p2 & 20.38-39p3)
CK07Q030 C/2007 Q3 (Siding Spring) from North Ryde Obs. (March 16.44-45p2) and Auckland Obs. (March 20.35p3)
CK07M030 C/2007 M3 (LINEAR) from Ageo Obs. (March 1.81p1 & 21.79p2) and Kambah Obs. (March 9.69-70p2)
CK07M020 C/2007 M2 (Catalina) from Schiaparelli Obs. (March 13.98p1 & 14.05p1), Nazaret Obs. (March 17.97-98p3), and La Murta Obs. (March 17.00p3)
CK07G010 C/2007 G1 (LINEAR) from Moriyama Obs. (March 15.82p2 & 21.77-78p2), LINEAR (March 19.44-48p5), Auckland Obs. (March 20.66p3), and Ageo Obs. (March 21.76p2)
CK07B020 C/2007 B2 (Skiff) from Gualba Obs. (Feb. 15.24p1), Engelhardt Obs. Zelenchukskaya Station (March 7.88p1), Schiaparelli Obs. (March 14.00p1 & 14.06p1), Mataro Obs. (March 16.91-94p3), Monte Deva Obs. (March 16.96-97p5), Auckland Obs. (March 17.38-40p4, 18.46p3 & 20.41-42p3), La Murta Obs. (March 18.01p3), Greiner Research Obs. (GRO) (March 20.17-20p3), and Trieste Obs. (March 20.89-90p4)
CK06U060 C/2006 U6 (Spacewatch) from Auckland Obs. (March 17.35p3 & 20.34p3)
CK06S050 C/2006 S5 (Hill) from Vicksburg Obs. (March 2.13-14p2, 16.15-16p2 & 22.09-10p2), Remanzacco Obs. (March 13.87p1), Gualba Obs. (March 14.88p1), Auckland Obs. (March 20.40-41p3), Nazaret Obs. (March 20.95-96p3), and Moriyama Obs. (March 21.57-58p2)
CK06Q010 C/2006 Q1 (McNaught) from AAAA Buenos Aires Obs. (March 14.04-10p3), Moriyama Obs. (March 17.56p2), and Auckland Obs. (March 18.47p3)
CK06K040 C/2006 K4 (NEAT) from Auckland Obs. (March 17.37-38p3, 18.48-49p3 & 20.39-40p3)
CK06K010 C/2006 K1 (McNaught) from CSS (Jan. 18.20-21p3 & Feb. 9.11-15p8)
CK05L030 C/2005 L3 (McNaught) from Moriyama Obs. (March 15.80-81p2 & 21.74p2), Auckland Obs. (March 20.67p3), and Ageo Obs. (March 21.72-73p3)
0197 197P from Ageo Obs. (March 5.73p2 & 7.76-77p2), Schiaparelli Obs. (March 14.04-08p2), Auckland Obs. (March 20.68p3), Montcabre Obs. (March 21.07-12p5), La Murta Obs. (March 22.07-08p3), and CSS (March 23.50-52p7)
0194P 194P/LINEAR from LINEAR (March 7.17-21p4) and Nazaret Obs. (March 20.89p3)
0180P 180P/NEAT from Moriyama Obs. (March 17.60p2), Montcabre Obs. (March 20.94p3), Rodeno Obs. (March 23.97-98p3), and Vicksburg Obs. (March 24.18-20p2)
0124P 124P/Mrkos from Gualba Obs. (Feb. 15.25p1), Moriyama Obs. (March 17.57-58p2), Kiev Comet Station (March 20.10-12p6), Paus Obs. (March 20.81-83p3), Montcabre Obs. (March 20.95p3), Vicksburg Obs. (March 22.12-13p2 & 24.15-16p2), Ageo Obs. (March 22.71-72p3), Rodeno Obs. (March 23.96-97p3), and CSS (March 24.31-33p4)
0110P 110P/Hartley 3 from Moriyama Obs. (March 17.54-55p2), Calarreona Obs. (March 18.90p3, 22.83p3 & 23.83-84p3), and Nazaret Obs. (March 22.89-91p3)
0093P 93P/Lovas 1 from Moriyama Obs. (March 17.50-51p2), La Murta Obs. (March 18.87-88p3), Calarreona Obs. (March 18.92p3, 22.87-88p3 & 23.87p3), and Chante-Perdrix Obs. (March 19.83p1)
0079P 79P/du Toit-Hartley from LINEAR (March 11.11-15p3) and Ageo Obs. (March 22.57p2)
0070P 70P/Kojima from Zelenchukskaya Sta. (March 7.88p1), Lumezzane Obs. (March 13.98-99p4), and Schiaparelli Obs. (March 13.99p1 & 14.06p1)
0065P 65P/Gunn from Vicksburg Obs. (March 2.17-19p2) and Nazaret Obs. (March 20.97-99p3)
0046P 46P/Wirtanen from Siegen Obs. (March 3.88-89p2 & 5.89-90p2), Gualba Obs. (March 14.87p1 & 20.79p1), Aljaraque Obs. (March 15.93p1), Mataro Obs. (March 16.85-86p3), Moriyama Obs. (March 17.52-53p2), Montcabre Obs. (March 17.87p3 & 20.86p3), La Murta Obs. (March 18.86p3), Calarreona Obs. (March 18.91-92p3, 22.84-85p3 & 23.92p1), Chante-Perdrix Obs. (March 19.85-86p3), Corbera Obs. (March 20.81p4), Nazaret Obs. (March 20.83p3 & 23.85-86p3), Monte Deva Obs. (March 20.89-90p5), La Vara Obs. (March 20.91p2), Rodeno Obs. (March 23.87-88p3), and Corner Obs. (March 23.92-96p4)
0029P 29P/Schwassmann-Wachmann 1 from Gualba Obs. (March 14.86p1, 16.87p1 & 20.79p2), Vicksburg Obs. (March 16.06-07p2), Mataro Obs. (March 16.81-83p3), Chante-Perdrix Obs. (March 16.83-85p3), La Murta Obs. (March 17.94-95p3 & 18.96-98p3), Calarreona Obs. (March 18.89p3, 22.84p3 & 23.86p3), Nazaret Obs. (March 20.85-88p3 & 23.90-91p3), Montcabre Obs. (March 20.88-89p3), La Vara Obs. (March 20.96p2), and Moriyama Obs. (March 21.56p2)
0026P 26P/Grigg-Skjellerup from Auckland Obs. (March 20.65p3) and Moriyama Obs. (March 21.81-82p2)
0022P 22P/Kopff from Ageo Obs. (March 22.65-66p2) and CSS (March 23.27-29p4)
0017P 17P/Holmes from Gualba Obs. (March 14.87p1), Chante-Perdrix Obs. (March 16.88-89p3 & 19.81-83p3), Montana Blanca Obs. (March 17.84-85p2), La Murta Obs. (March 18.89-91p3), Calarreona Obs. (March 18.90-91p3 & 23.88-89p3), Nazaret Obs. (March 20.91-93p3 & 23.83-85p3), Guadarrama Obs. (March 23.87p1), and CSS (March 24.18-19p4)
0008P 8P/Tuttle from Auckland Obs. (March 17.36p3 & 20.36p3)
0007P 7P/Pons-Winnecke from Montcabre Obs. (March 21.96-97p2), Nazaret Obs. (March 23.88-89p3), and CSS (March 24.39-44p8)

MPEC 2008-F29 - "14:41 UT" - Comet C/2008 E3 (Garradd)

CK08E030 C/2008 E3 (Garradd) (i=105.5°, q=5.462 AU, TP=2008 Aug. 30.828 TT) from the Siding Spring Survey (SSS) (March 8.77p1 & 10.76p1)

MPEC 2008-F28 - "14:36 UT" - Comet C/2008 C1 (Chen-Gao)

CK08C010 C/2008 C1 (Chen-Gao) (i=61.8°, q=1.262 AU, TP=2008 Apr. 16.8517 TT) from Siegen Obs. (March 3.86p3 & 5.88p3), Gualba Obs. (March 14.87p1 & 20.80p1), Chante-Perdrix Obs. (March 16.86-87p3 & 19.79-81p3), Mataro Obs. (March 16.88-89p3), Moriyama Obs. (March 17.49p2 & 21.54p2), Montcabre Obs. (March 17.88p3 & 21.86-87p3), La Murta Obs. (March 18.88p3), Kiev Comet Station (March 20.06-08p6), Ageo Obs. (March 22.50-51p2), Xingming Obs. (March 22.59-61p4 & 23.59p1), Calarreona Obs. (March 22.91p3 & 23.89-90p3), and Rodeno Obs. (March 23.86-87p3)

MPEC 2008-F27 - "14:28 UT" - Comet C/2006 V1 (Catalina)

CK06V010 C/2006 V1 (Catalina) (q=2.675 AU, Q=519.115 AU, TP=2007 Nov. 26.54598 TT) from Kambah Obs. (2007 Dec. 29.73-74p2) and Auckland Obs. (March 20.64-65p2 & 20.69-70p2)

MPEC 2008-F26 - "11:49 UT" - 2008 FC

K08F00C 2008 FC (small asteroid, Earth MOID=1.6 LD, H=24.8 ~37m) was discovered at 0913 UT on 23 March by CSS, which observed it at March 23.38-40p4, 23.47p4, and 23.52p4. The discovery was confirmed by Bergen-Enkheim Obs. (March 23.94-98p7), Jim Young via Table Mtn. Obs. (March 24.23-28p4), and Sabino Canyon Obs. (March 24.25-26p3).

MPEC 2008-F25 - "11:43 UT" - 2008 FB

K08F00B 2008 FB (small asteroid, H=23.3 ~74m) was discovered at 0606 UT on 23 March by CSS, which observed it at March 23.25-30p8 and 23.38p4. The discovery was confirmed by Sabino Canyon Obs. (March 23.33-34p3), Great Shefford Obs. (March 23.81-82p3), Bergen-Enkheim Obs. (March 23.82-85p4), Silver Spring Obs. (March 24.04-07p3), and Young/Table Mtn. (March 24.13-15p4).

<< DOU on 24 Mar. '08 >> MPEC 2008-F24 - "06:06 UT" - Daily Orbit Update

Observations of risk-listed objects
E4898 144898 2004 VD17 from David Tholen's team on Mauna Kea (Jan. 9.60p2 at R=22.1)
Observations of recently (no longer) risk-listed objects
K08E69C 2008 EC69 (Q=4.456 AU, arc=34 days, H=17.0 ~1.35 km) from CSS (March 23.48-49p2)
K08E00S 2008 ES (Q=4.020 AU, arc=21 days, H=18.2 ~776m) from Guidestar Obs. (March 23.82-84p3)
Observations of other objects
K08E32B 2008 EB32 (arc=13 days, H=19.2 ~490m) from Desert Moon Obs. (March 23.12-16p3)
K08E32A 2008 EA32 (IEO, Q=0.804 AU, arc=14 days, H=16.3 ~1.86 km) from CSS (March 24.11p3)
K08B18T 2008 BT18 (arc=52 days, H=18.3 ~741m) from Guidestar Obs. (March 23.80-82p3)
K05L08G 2005 LG8 (q=0.303 AU, arc=4 opp, H=16.8 ~1.48 km) from Desert Moon Obs. (March 23.10p3)
K00DA7P 2000 DP107 (arc=4 opp, H=18.2 ~776m) from CSS (March 23.28-29p4)
22099 22099 2000 EX106 from CSS (March 23.33-35p4)

Observers on 24 March '08

A total of 44 observing facilities appear in today's MPECs.

Code	Observer / observatory
`834`	AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2008-F30 -- C/2006 Q1
`349`	Ageo Obs. in Japan, 10 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, C/2007 W1, C/2007 T1, C/2007 M3, C/2007 G1, C/2005 L3, 197P, 124P, 79P, 22P
`J32`	Aljaraque Obs. in Spain, 1 in MPEC 2008-F30 -- 46P
`B37`	Ametlla del Valles Obs. in Spain, 1 in MPEC 2008-F30 -- P/2007 T6
`467`	Auckland Obs. in New Zealand, 15 in MPECs 2008-F27 & 2008-F30 -- C/2008 A1, C/2007 W1, C/2007 T1, C/2007 Q3, C/2007 G1, C/2007 B2, C/2006 V1, C/2006 U6, C/2006 S5, C/2006 Q1, C/2006 K4, C/2005 L3, 197P, 26P, 8P
`A74`	Bergen-Enkheim Obs. in Germany, 2 in MPECs 2008-F25 & 2008-F26 -- 2008 FC, 2008 FB
`J79`	Calarreona Obs. in Spain, 6 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, 110P, 93P, 46P, 29P, 17P
`703`	Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2008-F24, 2008-F25, 2008-F26 & 2008-F30 -- 2008 FC, 2008 FB, 2008 EC69, 2008 EA32, C/2007 W1, P/2007 T6, C/2006 K1, 2000 DP107, 22099, 197P, 124P, 22P, 17P, 7P
`A77`	Chante-Perdrix Obs. in France, 5 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, 93P, 46P, 29P, 17P
`A10`	Corbera Obs. in Spain, 1 in MPEC 2008-F30 -- 46P
`B50`	Corner Obs. in Germany, 1 in MPEC 2008-F30 -- 46P
`448`	Desert Moon Obs. in New Mexico, 2 in MPEC 2008-F24 -- 2008 EB32, 2005 LG8
`114`	Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 2 in MPEC 2008-F30 -- C/2007 B2, 70P
`J95`	Great Shefford Obs. in England, 1 in MPEC 2008-F25 -- 2008 FB
`H51`	Greiner Research Obs. in Wisconsin, 1 in MPEC 2008-F30 -- C/2007 B2
`458`	Guadarrama Obs. in Spain, 1 in MPEC 2008-F30 -- 17P
`442`	Gualba Obs. in Spain, 8 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, C/2007 W1, C/2007 B2, C/2006 S5, 124P, 46P, 29P, 17P
`A17`	Guidestar Obs. in Germany, 2 in MPEC 2008-F24 -- 2008 ES, 2008 BT18
`415`	Kambah Obs. in the Australian Capital Territory, 2 in MPECs 2008-F27 & 2008-F30 -- C/2007 M3, C/2006 V1
`585`	Kiev Comet Station in the Ukraine, 2 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, 124P
`704`	LINEAR in New Mexico, 3 in MPEC 2008-F30 -- C/2007 G1, 194P, 79P
`J76`	La Murta Obs. in Spain, 9 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, C/2007 W1, C/2007 M2, C/2007 B2, 197P, 93P, 46P, 29P, 17P
`J38`	La Vara Obs. in Spain, 2 in MPEC 2008-F30 -- 46P, 29P
`130`	Lumezzane Obs. in Italy, 1 in MPEC 2008-F30 -- 70P
`A06`	Mataro Obs. in Spain, 4 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, C/2007 B2, 46P, 29P
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-F24 -- 144898
`J46`	Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2008-F30 -- 17P
`213`	Montcabre Obs. in Spain, 7 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, 197P, 180P, 124P, 46P, 29P, 7P
`945`	Monte Deva Obs. in Spain, 3 in MPEC 2008-F30 -- C/2007 W1, C/2007 B2, 46P
`900`	Moriyama Obs. in Japan, 12 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, C/2007 G1, C/2006 S5, C/2006 Q1, C/2005 L3, 180P, 124P, 110P, 93P, 46P, 29P, 26P
`J47`	Nazaret Obs. in Spain, 10 in MPEC 2008-F30 -- P/2007 T6, C/2007 M2, C/2006 S5, 194P, 110P, 65P, 46P, 29P, 17P, 7P
`423`	North Ryde Obs. in New South Wales, 1 in MPEC 2008-F30 -- C/2007 Q3
`B49`	Paus Obs. in Spain, 1 in MPEC 2008-F30 -- 124P
`473`	Remanzacco Obs. in Italy, 1 in MPEC 2008-F30 -- C/2006 S5
`939`	Rodeno Obs. in Spain, 4 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, 180P, 124P, 46P
`854`	Sabino Canyon Obs. in Arizona, 2 in MPECs 2008-F25 & 2008-F26 -- 2008 FC, 2008 FB
`204`	Schiaparelli Obs. in Italy, 5 in MPEC 2008-F30 -- C/2007 W1, C/2007 M2, C/2007 B2, 197P, 70P
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2008-F29 -- C/2008 E3
`510`	Siegen Obs. in Germany, 2 in MPECs 2008-F28 & 2008-F30 -- C/2008 C1, 46P
`H85`	Silver Spring Obs. in Maryland, 1 in MPEC 2008-F25 -- 2008 FB
`6735`	Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2008-F25 & 2008-F26 -- 2008 FC, 2008 FB
`A82`	Trieste Obs. in Italy, 1 in MPEC 2008-F30 -- C/2007 B2
`H47`	Vicksburg Obs. in Mississippi, 5 in MPEC 2008-F30 -- C/2006 S5, 180P, 124P, 65P, 29P
`C42`	Xingming Obs. in China, 1 in MPEC 2008-F28 -- C/2008 C1

Impact Risk Monitoring on 24 March '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2353 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

2007 FY20	NEODyS	1413	2085-2088	3	3.24e-07	-6.65	-6.81	0	NEODyS: "Based on 60 optical observations (of which 0 are rejected as outliers) from 2007/03/26.203 to 2007/04/01.870, and also on one radar data point on 2007/03/31."

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 24 March '08

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

1506	Grabbed MPEC 2008-F27 - Comet C/2006 V1 (Catalina) - see above Grabbed MPEC 2008-F30 - Observations of Comets - see above
1505	Grabbed MPEC 2008-F28 - Comet C/2008 C1 (Chen-Gao) - see above Grabbed MPEC 2008-F29 - Comet C/2008 E3 (Garradd) - see above
1413	Noted that NEODyS has updated its 2007 FY20 risk assessment - see above
1412	Grabbed MPEC 2008-F24 - Daily Orbit Update - see above Grabbed MPEC 2008-F25 - 2008 FB - see above Grabbed MPEC 2008-F26 - 2008 FC - see above The NEOCP has become empty

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