17 Jun '07 Major News

Contents on 17 June '07

Minor-Object News
Minor-Object Science -- none today
IAU Minor Planet Center
- NEOCP Activity -- six listings: 3 new, 3 updated
- New MPECs -- one MPEC
- Observers -- eleven observing facilities
Impact Risk Monitoring -- one object reported
Chronology

WELCOME to A/CC's prototype daily news publication designed to be the viewing end of a planned autonomous 24-hour news service. The new tools and this publication format are working well enough now to share with readers. It is expected that this approach will require less time to maintain than our previous news and small asteroid pages, which were retired on May 14th. There's still more development ahead and there probably will be some glitches along the way, but this is what's needed to keep up with the increasing pace of minor-object news. The CRT page will be maintained separately for a little while longer, until all of this is working smoothly. And the CRT and small-asteroid ephemerides will be kept going.

Minor-Object News on 17 June '07

No news links were found or prepared on this day.

Minor-Object Science on 17 June '07

No science papers were available or prepared today.

NEOCP Activity on 17 June '07

The MPC's NEO Confirmation Page has 6 listings: 3 new, 3 updated

When last checked this day, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three new and three updated listings. Of these, three were "one nighters."

New MPECs on 17 June '07

Minor Planet Electronic Circulars

There was one MPEC issued this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 17 June '07 >> MPEC 2007-M07 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K07L15B 2007 LB15 (arc=3 days, H=19.0 ~537m) from the Spacewatch 1.8m telescope (June 16.39-41p3)
Observations of small asteroids (H>22.0)
K07L19T 2007 LT19 (arc=1 day, H=25.4 ~28m) from the Siding Spring Survey (SSS) (June 16.63p2 & 16.69p2)
K07L00U 2007 LU (arc=6 days, H=23.4 ~71m) from SSS (June 15.70p2)
K07L00T 2007 LT (arc=7 days, H=22.4 ~112m) from Sandlot Obs. (June 16.30-32p4)
Observations of other objects
K07L15A 2007 LA15 (arc=4 days, H=19.4 ~446m) from Astronomical Research Obs. (ARO) (June 16.30p6), Spacewatch 1.8m (June 16.35p3), Wildberg Obs. (June 16.89-90p5), and Drebach Obs. (June 16.90p3)
K07L08V 2007 LV8 (arc=5 days, H=20.0 ~339m) from Eschenberg Obs. (June 16.93-94p7)
K07L00F 2007 LF (arc=10 days, H=20.6 ~257m) from Eschenberg Obs. (June 16.94p7)
K07F42V 2007 FV42 (arc=88 days, H=17.8 ~933m) from Hamamatsu-Yuto Obs. (June 16.59-61p10)
K07D40Z 2007 DZ40 (Q=4.841 AU, arc=115 days, H=18.5 ~676m) from Drebach Obs. (June 16.97-98p4)
K07B50B 2007 BB50 (Q=4.885 AU, arc=85 days, H=18.5 ~676m) from New Millennium Obs. (Feb. 18.92-96p2 & 19.90-97p4)
K06SD4J 2006 SJ134 (arc=2 opp, H=18.0 ~851m) from New Millennium Obs. (Feb. 19.95-99p3)
K06K89E 2006 KE89 (i=45.1°, q=0.211 AU, arc=3 opp, H=16.5 ~1.70 km) from San Benedetto Po Obs. (June 8.90p4) and Drebach Obs. (June 16.88-89p5)
K05C00A 2005 CA (Q=4.340 AU, arc=5 opp, H=15.4 ~2.82 km, q=1.117 AU) from ARO (June 16.19-21p2)
K05A13D 2005 AD13 (arc=2 opp, H=17.9 ~891m) from San Benedetto Po Obs. (June 8.92p2)
K03Y17P 2003 YP17 (arc=2 opp, H=19.0 ~537m) from ARO (June 16.30-31p3)
K03B00H 2003 BH (arc=3 opp, H=20.7 ~245m) from ARO (June 16.27p1 at V=22.5)
K02K04F 2002 KF4 (i=37.2°, Q=4.571 AU, arc=3 opp, H=17.2 ~1.23 km) from San Benedetto Po Obs. (June 8.89-90p4)
K02C26E 2002 CE26 (i=47.3°, arc=4 opp, H=16.8 ~1.48 km) from ARO (June 16.32-34p3)
K01J02V 2001 JV2 (i=47.5°, arc=3 opp, H=18.8 ~589m) from ARO (June 16.34-35p3)
J98U01L 1998 UL1 (i=42.0°, arc=5 opp, H=16.6 ~1.62 km) from Drebach Obs. (June 16.89p5)
J98S04T 1998 ST4 (Q=4.500 AU, arc=4 opp, H=16.5 ~1.70 km) from ARO (June 16.34-37p3 at V=22.3-5)
F5341 155341 2006 SA218 from New Millennium Obs. (Feb. 18.91-95p2 & 19.96-99p3)
F2895 152895 2000 CQ101 from New Millennium Obs. (Feb. 18.93-97p2 & 19.91-95p3)
E3381 143381 2003 BC21 from New Millennium Obs. (Feb. 18.89-90p2 & 19.96-99p2)
D6874 136874 1998 FH74 from San Benedetto Po Obs. (June 8.91p4)
A8519 108519 2001 LF from SSS (June 16.47-50p4)
86829 86829 2000 GR146 from the Catalina Sky Survey (CSS) (June 16.20-22p4)
53435 53435 1999 VM40 from New Millennium Obs. (Feb. 18.92-96p2 & 19.90-00p6)
40267 40267 1999 GJ4 from CSS (June 16.17-19p4)
05693 5693 1993 EA from New Millennium Obs. (Feb. 17.04p1, 18.91p1 & 19.90-00p6)
05646 5646 1990 TR from New Millennium Obs. (Feb. 16.92-93p2 & 19.92p1)
05626 5626 1991 FE from New Millennium Obs. (Feb. 18.91-95p2 & 19.96p1)
04544 4544 Xanthus (1989 FB) from New Millennium Obs. (Feb. 18.94-97p2 & 19.91-00p5)
03103 3103 Eger (1982 BB) from New Millennium Obs. (Feb. 18.95-96p2 & 19.90-97p4)
02212 2212 Hephaistos (1978 SB) from New Millennium Obs. (Feb. 18.87-88p2 & 19.87-88p2)
01943 1943 Anteros (1973 EC) from New Millennium Obs. (Feb. 18.87-88p2 & 19.89-90p2)
01866 1866 Sisyphus (1972 XA) from New Millennium Obs. (Feb. 18.89-91p2 & 19.89-94p3)
01627 1627 Ivar (1929 SH) from New Millennium Obs. (Feb. 18.89-92p2 & 19.90-94p3)

Observers on 17 June '07

Eleven observing facilities appeared in this day's MPECs.

`H55`	Astronomical Research Obs. in Illinois, 7 in MPEC 2007-M07 -- 2007 LA15, 2005 CA, 2003 YP17, 2003 BH, 2002 CE26, 2001 JV2, 1998 ST4
`703`	Catalina Sky Survey in Arizona, 2 in MPEC 2007-M07 -- 86829, 40267
`113`	Drebach Obs. in Germany, 4 in MPEC 2007-M07 -- 2007 LA15, 2007 DZ40, 2006 KE89, 1998 UL1
`151`	Eschenberg Obs. in Switzerland, 2 in MPEC 2007-M07 -- 2007 LV8, 2007 LF
`379`	Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2007-M07 -- 2007 FV42
`A24`	New Millennium Obs. in Italy, 15 in MPEC 2007-M07 -- 2007 BB50, 2006 SJ134, 155341, 152895, 143381, 53435, 5693, 5646, 5626, 4544, 3103, 2212, 1943, 1866, 1627
`434`	San Benedetto Po Obs. in Italy, 4 in MPEC 2007-M07 -- 2006 KE89, 2005 AD13, 2002 KF4, 136874
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2007-M07 -- 2007 LT
`E12`	Siding Spring Survey in New South Wales, 3 in MPEC 2007-M07 -- 2007 LT19, 2007 LU, 108519
`291`	Spacewatch 1.8m telescope in Arizona, 2 in MPEC 2007-M07 -- 2007 LB15, 2007 LA15
`198`	Wildberg Obs. in Germany, 1 in MPEC 2007-M07 -- 2007 LA15

Impact Risk Monitoring on 17 June '07

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2349 UTC)
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2080.
For the latest official risk assessments, 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 LB15	JPL	1826	2022-2101	58	5.7e-07	-2.81	-3.34	0	JPL: "Analysis based on 21 observations spanning 3.0624 days (2007-Jun-13.3467 to 2007-Jun-16.4091)." Diameter approximately 0.599 km. from mean, weighted H=18.8.
2007 LB15	NEODyS	1826	2022-2080	46	5.09e-07	-2.79	-3.19	0	NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2007/06/13.347 to 2007/06/16.410."

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

For a list of all risk-rated objects recently in view, see our ephemerides page.

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from an 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" for more about all this.

Chronology on 17 June '07

Times are UTC for when the items were noted by Major News.

1826	Noted that JPL has updated its 2007 LB15 risk assessment - see above Noted that NEODyS has updated its 2007 LB15 risk assessment - see above Grabbed MPEC 2007-M07 - Daily Orbit Update - see above

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