2009-06-22 Tracking News

Contents on 22 June '09

IAU Minor Planet Center
- NEOCP Activity -- three listings: 3 updated
- New MPECs -- five MPECs
Observers -- 21 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 22 June '09

The MPC's NEO Confirmation Page has 3 listings: 3 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three updated listings. All of these were "one nighters." So far The Tracking News has counted a total of eleven 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 22 June '09

Minor Planet Electronic Circulars

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

MPEC 2009-M17 time-stamped "06:06 UT" - Daily Orbit Update - see below
MPEC 2009-M18 time-stamped "11:27 UT" - 2009 MS - see below
MPEC 2009-M19 time-stamped "11:38 UT" - 2009 MU - see below
MPEC 2009-M20 time-stamped "11:42 UT" - 2009 MW - see below
MPEC 2009-M21 time-stamped "11:45 UT" - 2009 MX

MPEC 2009-M21 - "11:45 UT" - 2009 MX

K09M00X 2009 MX was discovered at 0719 UT on 21 June by the Mt. Lemmon Survey (MLS), which observed it at June 21.31-32p4 and 21.38p3. The discovery was confirmed by Great Shefford Obs. (June 22.01-02p3), Astronomical Research Obs. (ARO) (June 22.18-19p3), and the Spacewatch 1.8m telescope (June 22.22-23p3).

MPEC 2009-M20 - "11:42 UT" - 2009 MW

K09M00W 2009 MW was discovered at 0520 UT on 21 June by LINEAR, which observed it at June 21.22-27p5. The discovery was confirmed by Farpoint Obs. (June 22.17-19p5), MLS (June 22.19p4), Sabino Canyon Obs. (June 22.21-22p3), and Jim Young via Table Mtn. Obs. (June 22.22-23p4).

MPEC 2009-M19 - "11:38 UT" - 2009 MU

K09M00U 2009 MU (risk-listed) was discovered at 0721 UT on 19 June by the Catalina Sky Survey (CSS), which observed it at June 19.31-36p7, 21.26p4, and 21.34-35p4. The discovery was confirmed by MLS (June 19.35p3 & 21.39p4), Libbiano Obs. (June 19.95-96p3), Sabino Canyon Obs. (June 21.34-35p3), Cristovao Jacques via RAS Obs. Moorook (June 21.60p3), Great Shefford Obs. (June 21.92p4), Mandi Obs. (June 21.95-96p4), Modra Obs. (June 21.98-99p5), ARO (June 22.15-16p3), Camarillo Obs. (June 22.18-20p3), Young/Table Mtn. (June 22.19-20p4), Cordell-Lorenz Obs. (June 22.19-22p5), and Spacewatch 1.8m (June 22.20-21p3).

MPEC 2009-M18 - "11:27 UT" - 2009 MS

K09M00S 2009 MS was discovered at 0520 UT on 19 June by MLS, which observed it at June 19.22-24p4 and 21.31-32p3. The discovery was confirmed by Young/Table Mtn. (June 19.28-30p4) and Spacewatch 1.8m (June 21.39-40p3 & 22.35-36p3).

<< DOU on 22 June '09 >> MPEC 2009-M17 - "06:06 UT" - Daily Orbit Update

Observations of recently (no longer) risk-listed objects
K09L02W 2009 LW2 (arc=6 days, H=19.8 ~371m) from Spacewatch 1.8m (June 21.41-42p3) and MLS (June 21.42-44p4)
K09L00S 2009 LS (i=45.1°, arc=10 days, H=17.9 ~891m) from Madonna di Dossobuono Obs. (June 21.93-94p3) and Timberlake Obs. (June 22.14-17p2)
K09K02L 2009 KL2 (arc=33 days, H=18.1 ~812m) from Schiaparelli Obs. (June 3.95p1) and Madonna di Dossobuono Obs. (June 21.98p3)
Observations of small asteroids (H>22.0)
K09L00A 2009 LA (arc=4 days, H=26.3 ~19m) from Schiaparelli Obs. (June 2.91-94p2)
K09K04O 2009 KO4 (arc=28 days, H=24.4 ~45m) from Spacewatch 1.8m (June 21.43p2)
Observations of other objects
K09M00A 2009 MA (arc=5 days, H=21.5 ~170m) from Petit Jean Mtn. South Obs. (PJMSO) (June 21.27-28p7)
K09L00Q 2009 LQ (arc=10 days, H=21.7 ~155m) from Schiaparelli Obs. (June 11.95-96p3)
K09J01K 2009 JK1 (arc=94 days, H=19.9 ~355m) from PJMSO (June 21.24-25p6)
K09B02L 2009 BL2 (arc=154 days, H=19.4 ~446m) from PJMSO (June 21.22-23p6)
K04L02C 2004 LC2 (arc=2 opp, H=18.7 ~616m) from Spacewatch 1.8m (June 21.26-27p3)
K02L38T 2002 LT38 (arc=2 opp, H=20.3 ~295m) from Schiaparelli Obs. (June 11.93p2 & 12.93-96p5)
K02L00V 2002 LV (arc=3 opp, H=16.6 ~1.62 km) from PJMSO (June 21.34-35p5), El Guijo Obs. (June 21.96-98p3), Madonna di Dossobuono Obs. (June 21.96-97p3), and Skylive Obs. (June 21.98-99p3)
K01F90E 2001 FE90 (arc=2 opp, H=20.2 ~309m) from PJMSO (June 21.23-24p7) and Mandi Obs. (June 21.90-93p3)
K00O22B 2000 OB22 (Q=4.252 AU, arc=4 opp, H=17.1 ~1.29 km) from Madonna di Dossobuono Obs. (June 21.95p3)
J4386 194386 2001 VG5 from CSS (June 21.27-29p4)
G3051 163051 2001 YJ4 from LINEAR (June 21.38-42p5)
67367 67367 2000 LY27 from MLS (June 21.27-29p3)
15745 15745 1991 PM5 from Skylive Obs. (June 21.97p3)
14402 14402 1991 DB from Skylive Obs. (June 21.00p2)

Observers on 22 June '09

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

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 2 in MPECs 2009-M19 & 2009-M21 -- 2009 MX, 2009 MU
`670`	Camarillo Obs. in southern California, 1 in MPEC 2009-M19 -- 2009 MU
`703`	Catalina Sky Survey (CSS) in Arizona, 2 in MPECs 2009-M17 & 2009-M19 -- 2009 MU, 194386
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2009-M19 -- 2009 MU
`J27`	El Guijo Obs. in Spain, 1 in MPEC 2009-M17 -- 2002 LV
`734`	Farpoint Obs. in Kansas, 1 in MPEC 2009-M20 -- 2009 MW
`J95`	Great Shefford Obs. in England, 2 in MPECs 2009-M19 & 2009-M21 -- 2009 MX, 2009 MU
`704`	LINEAR in New Mexico, 2 in MPECs 2009-M17 & 2009-M20 -- 2009 MW, 163051
`B33`	Libbiano Obs. in Italy, 1 in MPEC 2009-M19 -- 2009 MU
`560`	Madonna di Dossobuono Obs. in Italy, 4 in MPEC 2009-M17 -- 2009 LS, 2009 KL2, 2002 LV, 2000 OB22
`B28`	Mandi Obs. in Italy, 2 in MPECs 2009-M17 & 2009-M19 -- 2009 MU, 2001 FE90
`118`	Modra Obs. in Slovakia, 1 in MPEC 2009-M19 -- 2009 MU
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2009-M17, 2009-M18, 2009-M19, 2009-M20 & 2009-M21 -- 2009 MX, 2009 MW, 2009 MU, 2009 MS, 2009 LW2, 67367
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 5 in MPEC 2009-M17 -- 2009 MA, 2009 JK1, 2009 BL2, 2002 LV, 2001 FE90
`D90.`	Cristovao Jacques in Brazil via RAS Obs. Moorook in South Australia, 1 in MPEC 2009-M19 -- 2009 MU
`854`	Sabino Canyon Obs. in Arizona, 2 in MPECs 2009-M19 & 2009-M20 -- 2009 MW, 2009 MU
`204`	Schiaparelli Obs. in Italy, 4 in MPEC 2009-M17 -- 2009 LQ, 2009 LA, 2009 KL2, 2002 LT38
`B40`	Skylive Obs. in Italy, 3 in MPEC 2009-M17 -- 2002 LV, 15745, 14402
`291`	Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2009-M17, 2009-M18, 2009-M19 & 2009-M21 -- 2009 MX, 2009 MU, 2009 MS, 2009 LW2, 2009 KO4, 2004 LC2
`6735`	Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2009-M18, 2009-M19 & 2009-M20 -- 2009 MW, 2009 MU, 2009 MS
`H83`	Timberlake Obs. in Virginia, 1 in MPEC 2009-M17 -- 2009 LS

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

Impact Risk Monitoring on 22 June '09

**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

2009 MU	JPL Sentry	1431	2096-2099	2	5.5e-07	-6.21	-6.28	0	JPL: "Analysis based on 62 observations spanning 2.9141 days (2009-Jun-19.30659 to 2009-Jun-22.22069)." Diameter approximately 0.043 km. from mean, weighted H=24.5.

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 22 June '09

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

1431	Noted that JPL Sentry has posted 2009 MU as an impact risk - see above
1330	Grabbed MPEC 2009-M17 - Daily Orbit Update - see above Grabbed MPEC 2009-M18 - 2009 MS - see above Grabbed MPEC 2009-M19 - 2009 MU - see above Grabbed MPEC 2009-M20 - 2009 MW - see above Grabbed MPEC 2009-M21 - 2009 MX - see above

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